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662 check-ins using file README.md version 7764d56778
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2019-05-07
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| 02:57 | Add the exprNodeCopy() routine that will safely memcpy() an Expr node that might be a size-reduced node. (Leaf check-in: ab2ba8e732 user: drh tags: expr-node-copy-patch) | |
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2018-09-29
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| 19:38 | Add the PRAGMA table_vinfo command (with an extra "v" before "info") that works like PRAGMA table_info (without the "v") except that it also shows hidden columns on virtual tables. (check-in: 8bcd1a5956 user: drh tags: pragma-table-vinfo) | |
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2018-08-31
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| 19:00 | If a call to sqlite3_snapshot_open() fails because the requested snapshot no longer exists, return SQLITE_ERROR_SNAPSHOT instead of SQLITE_BUSY_SNAPSHOT. (check-in: e07923128b user: dan tags: trunk) | |
| 18:23 | Ensure b-tree mutexes are always held when sqlite3FindTable() is called. Do not invoke the authorizer callback when parsing schema items as part of ALTER TABLE commands. Fix test script issues. (check-in: eac2aa7dce user: dan tags: alter-table-rename-table) | |
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2018-08-30
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| 20:28 | Try to identify the places in WAL code where thread-safety depends on the underlying architecture supporting atomic load and store of aligned 32-bit values. (check-in: 47d44be4a6 user: drh tags: trunk) | |
| 20:03 | Test the schema after renaming a table. Ensure that temp database triggers and views are updated when renaming a column. (check-in: f3c27d916d user: dan tags: alter-table-rename-table) | |
| 18:53 | Give the debugging routine print_pager_stats() external linkage in order to suppress harmless compiler and TSAN warnings. (check-in: ff4dc08298 user: drh tags: trunk) | |
| 16:26 | Fix an ALTER TABLE problem with processing temp schema views and triggers. (check-in: 72cfb1be29 user: dan tags: alter-table-rename-table) | |
| 01:52 | Improved JSON parser caching. (check-in: 58078c0d26 user: drh tags: trunk) | |
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2018-08-29
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| 21:01 | Additional test cases for geopoly. (check-in: 19b5eb45e0 user: drh tags: trunk) | |
| 21:00 | Extend RENAME TABLE to edit triggers and views. Still buggy. (check-in: 01308bae3a user: dan tags: alter-table-rename-table) | |
| 20:52 | Fixes to the UPDATE logic in Geopoly. (check-in: 7c3cee0a2a user: drh tags: trunk) | |
| 20:24 | Also free up the MEM_RowSet bit in the Mem.flags field and have RowSet objects be destroyed using Mem.xDel. This change results in faster code. (check-in: f48e9feb3f user: drh tags: trunk) | |
| 18:47 | Free up the MEM_Frame bit in Mem.flags object. Store VdbeFrame objects as MEM_Blob with a special Mem.xDel pointer instead. (check-in: 62db5fd476 user: drh tags: trunk) | |
| 15:50 | Add the geopoly_group_bbox() aggregate function to the Geopoly module. (check-in: 2d4debccbc user: drh tags: trunk) | |
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2018-08-28
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| 21:12 | Disable the server1.test script on old PPC Macs due to problems in the pthreads implementation on those archaic machines. (check-in: 43efdd8c7e user: drh tags: trunk) | |
| 19:23 | Stricter enforcement of the JSON and GeoJSON standards in the Geopoly extension. (check-in: c0bf3ff3af user: drh tags: trunk) | |
| 15:51 | Fix new issues in the geopoly module discovered by TH3. (check-in: 22fff9afc2 user: drh tags: trunk) | |
| 11:23 | Fix a problem causing spurious SQLITE_CORRUPT errors when using the snapshot API to read from old database snapshots. (check-in: 535155be58 user: dan tags: trunk) | |
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2018-08-27
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| 17:13 | Add support for the Geopoly extension to the R-Tree extension. This also involves adding the SQLITE_INDEX_CONSTRAINT_FUNCTION capability to the xFindFunction method of the sqlite3_module object, and to the sqlite3_index_info.aConstraint.op field in the xBestIndex implementation of virtual tables. (check-in: 666133e32c user: drh tags: trunk) | |
| 17:05 | Minor changes to the visual01.txt test script. (Closed-Leaf check-in: 4bc28eed32 user: drh tags: rtree-geopoly) | |
| 15:55 | Split the three-argument version of geopoly_within() off into a separate function named geopoly_contains_point(). (check-in: 5a0e154103 user: drh tags: rtree-geopoly) | |
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2018-08-25
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| 23:03 | Enhance the geopoly virtual table so that it does a better job of optimizing geopoly_within() queries. (check-in: 1f71738534 user: drh tags: rtree-geopoly) | |
| 19:51 | Provide the two-argument geopoly_within(P1,P2) routine that determines if polygon P2 is contained within polygon P1. Make this function available to the query planner for optimized rtree lookups. Update the visual01.txt script to verify that the new functionality actually works. (check-in: 6eb5d09b7f user: drh tags: rtree-geopoly) | |
| 18:57 | Fix a harmless compiler warning. (check-in: d49be9838d user: drh tags: rtree-geopoly) | |
| 16:22 | Fix a minor issue in the altercol.test script so that it runs on Windows. (check-in: 62089c6daf user: drh tags: alter-table-rename-column) | |
| 16:14 | Invoke the authorizer for ALTER TABLE RENAME COLUMN. (check-in: fc293bcb34 user: drh tags: alter-table-rename-column) | |
| 03:29 | Remove an unnecessary IN_RENAME_COLUMN macro from resolve.c. (check-in: 5858c0bde7 user: drh tags: alter-table-rename-column) | |
| 02:04 | The implementation of sqlite_rename_column() must be holding the schema mutexes. (check-in: f0eed21d4e user: drh tags: alter-table-rename-column) | |
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2018-08-24
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| 20:20 | Fix a problem by renaming a column when the schema contains an trigger program featuring an UPSERT that uses an "excluded.*" reference to a different table. (check-in: 83d5f5abce user: dan tags: alter-table-rename-column) | |
| 20:10 | Fix a problem with renaming a column that occurs as an "excluded.colname" construction in an UPSERT that is part of a trigger program. (check-in: bb2f723496 user: dan tags: alter-table-rename-column) | |
| 19:04 | Set SQLITE_PTRSIZE to 4 when compiling with xlc on 32-bit AIX. (check-in: d158e5b12e user: mistachkin tags: trunk) | |
| 17:55 | After modifying and reparsing the schema as part of an ALTER TABLE RENAME COLUMN, check that no new schema errors have been introduced (e.g. ambiguous column names in views) before committing the operation. (check-in: a0e06d2c5e user: dan tags: alter-table-rename-column) | |
| 16:04 | Avoid incorrectly replacing tokens that refer to a column being renamed via an alias. For example, do not overwrite "xyz" when "a" is renamed in "CREATE VIEW v1 AS SELECT a AS xyz FROM tbl WHERE xyz=1" (check-in: ad072a835f user: dan tags: alter-table-rename-column) | |
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2018-08-23
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| 20:09 | Add the "atrc" test program to the Makefiles. Fix a typo in the instructions in the header comment of the atrc program. (check-in: 2130a407dd user: drh tags: alter-table-rename-column) | |
| 19:32 | Fix harmless compiler warnings in the ALTER TABLE logic. Rephrase an error message to use active voice. (check-in: a7dae59a7e user: drh tags: alter-table-rename-column) | |
| 18:56 | Automatically detect when compiling for AArch64 on windows and set SQLITE_BYTEORDER to little-endian to avoid compile-time testing. (check-in: ef6729be85 user: drh tags: trunk) | |
| 18:50 | The Expr.iColumn field must also be initialized in tokenExpr(). (check-in: 772985f18b user: drh tags: alter-table-rename-column) | |
| 18:22 | Make sure the Expr.iTable field is initialized by tokenExpr(). (check-in: 02a05a3b3c user: drh tags: alter-table-rename-column) | |
| 14:54 | Merge enhancements from trunk. (check-in: c446c88411 user: drh tags: rtree-geopoly) | |
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2018-08-21
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| 17:03 | Fix a test case that was failing for SQLITE_ENABLE_STAT4 builds. (check-in: 1e29fd430d user: dan tags: trunk) | |
| 16:32 | Rename internal function sqlite3RenameToken() to sqlite3RenameTokenMap() and sqlite3MoveRenameToken() to sqlite3RenameTokenRemap(). (check-in: b9ae9a0a18 user: dan tags: alter-table-rename-column) | |
| 15:06 | Rationalize some duplicated code in alter.c. Also improve error messages for ALTER TABLE RENAME COLUMN in some cases. (check-in: 5d2163c734 user: dan tags: alter-table-rename-column) | |
| 12:46 | Further attempts to reduce the number of false-positives genenerated by static analysis tools. (check-in: 38f9ce6503 user: drh tags: trunk) | |
| 12:16 | Fix various harmless warnings generated by static analysis tools. (check-in: a04a0ea9e3 user: drh tags: trunk) | |
| 08:29 | Minor changes to function tokenExpr() in order to claw back cycles lost to the rename-column change. (check-in: 479976955e user: dan tags: alter-table-rename-column) | |
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2018-08-20
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| 20:01 | Add further tests for RENAME COLUMN. (check-in: 82c4c10a96 user: dan tags: alter-table-rename-column) | |
| 16:16 | Ensure that it is not possible to rename columns of system tables, views or virtual tables. (check-in: 786b5991dc user: dan tags: alter-table-rename-column) | |
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2018-08-18
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| 18:27 | Additional fixes for harmless compiler warnings that are specific to this branch. (check-in: 9d8e73bf71 user: drh tags: alter-table-rename-column) | |
| 18:14 | Merge trunk fixes. (check-in: ccad277927 user: drh tags: alter-table-rename-column) | |
| 18:01 | Have ALTER TABLE RENAME COLUMN also edit trigger and view definitions. (check-in: 7908e8a4a3 user: dan tags: alter-table-rename-column) | |
| 17:35 | Improvements to error handling in ALTER TABLE RENAME COLUMN. (Closed-Leaf check-in: 7fa1faeaff user: dan tags: edit-trigger-wrapper) | |
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2018-08-17
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| 21:14 | Fix harmless compiler warnings only seen with STAT4 enabled. (check-in: 6f5e84bafc user: mistachkin tags: trunk) | |
| 18:08 | Allow an ALTER TABLE RENAME COLUMN to proceed even if the schema contains a virtual table for which the module is unavailable. (check-in: 7b72b2360a user: dan tags: edit-trigger-wrapper) | |
| 17:18 | Ensure that CREATE VIEW, TRIGGER or INDEX statements can be edited by ALTER TABLE RENAME COLUMN even if they use collation-sequences or user-defined-functions that are not available. (check-in: 540014efd6 user: dan tags: edit-trigger-wrapper) | |
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2018-08-16
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| 19:49 | Further progress on updating trigger programs as part of ALTER TABLE RENAME COLUMN. (check-in: 3f47222b6e user: dan tags: edit-trigger-wrapper) | |
| 16:24 | Fix a harmless unused-variable compiler warning that only came up in certain compile-time configurations. (check-in: 456842924b user: drh tags: trunk) | |
| 15:29 | Fix EXPLAIN QUERY PLAN so that it describes IN operators implemented using a ROWID lookup. (check-in: 60045fbf52 user: drh tags: trunk) | |
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2018-08-15
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| 20:28 | Have ALTER TABLE RENAME COLUMN edit trigger programs. Only partly working. (check-in: e272dc2b1c user: dan tags: edit-trigger-wrapper) | |
| 14:03 | Allow sqlite3_snapshot_open() to be called to change the snapshot after a read transaction is already open on database. (check-in: 4139916995 user: dan tags: trunk) | |
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2018-08-14
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| 21:05 | Fix a problem when renaming an IPK column that is also part of a child key. (check-in: 6e6a2bfdbb user: dan tags: edit-trigger-wrapper) | |
| 21:03 | Fix a problem when renaming an IPK column that is also part of a child key. (check-in: ad15486022 user: dan tags: alter-table-rename-column) | |
| 20:40 | Merge latest trunk and ALTER TABLE error message improvements into this branch. (check-in: 7a45802daf user: dan tags: edit-trigger-wrapper) | |
| 20:38 | Do not allow ALTER TABLE RENAME COLUMN on a virtual table. (check-in: f6d6b47271 user: drh tags: alter-table-rename-column) | |
| 20:18 | Have ALTER TABLE RENAME edit column references in CREATE VIEW statements. (check-in: db829dc1a2 user: dan tags: edit-trigger-wrapper) | |
| 19:27 | Improved error messages when an ALTER TABLE RENAME COLUMN fails due to a duplicate column name. (check-in: 37d11b8e82 user: drh tags: alter-table-rename-column) | |
| 18:12 | Merge fixes and enhancements from trunk. (check-in: dff0314b7e user: drh tags: alter-table-rename-column) | |
| 16:18 | Fix ALTER TABLE RENAME COLUMN in cases where the column being renamed is an IPK declared with a separate PRIMARY KEY clause - "CREATE TABLE x(y INTEGER, PRIMARY KEY(y))". (check-in: 32ca8418df user: dan tags: alter-table-rename-column) | |
| 15:12 | Fix UPSERT so that it checks the target-constraint first and fires the DO UPDATE if that constraint is violated regardless of whether or not other constraints are in violation. This aligns SQLite behavior with what PostgreSQL does. Fix for ticket [908f001483982c43cdb476dfb590a1a]. (check-in: 529fb55e3d user: drh tags: trunk) | |
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2018-08-13
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| 22:50 | Stop requiring the global VFS mutex to access the unixInodeInfo.pUnused field. The unixInodeInfo mutex is sufficient. (check-in: e3ea43dabf user: drh tags: trunk) | |
| 20:46 | Take extra precautions to ensure access to unixInodeInfo.pUnused is protected by all necessary mutexes. (check-in: 8b1e0010b9 user: drh tags: trunk) | |
| 17:14 | Edit the WHEN and UPDATE OF clauses of trigger programs as part of ALTER TABLE RENAME COLUMN. (check-in: 5fdb6b0aaf user: dan tags: edit-trigger-wrapper) | |
| 17:02 | Make the sqlite_rename_column() SQL function resistant to problems caused by OOMs and/or malformed parameters submitted by hostile application code. Also add additional comments to the RENAME COLUMN logic. (check-in: 87743ddef1 user: drh tags: alter-table-rename-column) | |
| 15:09 | Fix legacy comments on Token. Begin commenting the new ALTER TABLE RENAME COLUMN code. Fix a memory leak in the sqlite_rename_column() SQL function. (check-in: 32edc89203 user: drh tags: alter-table-rename-column) | |
| 13:43 | Fix issues with ALTER TABLE RENAME COLUMN associated with OOM errors. (check-in: 0b28dd5c2e user: drh tags: alter-table-rename-column) | |
| 12:58 | Fix a heap-corruption causing race condition in os_unix.c that could occur when one thread wal opening a database file while another is unlocking the same file. Edit: Let's go in a slightly different direction with this fix. (Closed-Leaf check-in: 2447e0fd98 user: dan tags: unix-lock-fix-attempt) | |
| 11:32 | Fix an incorrect comment on the unix-nolock VFS object. No functional code changes. (check-in: 90f7c193b4 user: drh tags: trunk) | |
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2018-08-11
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| 20:46 | Add the "atrc" test program. "Atrc" is short for "ALTER TABLE RENAME COLUMN". See the header comment on the program itself for further information. (check-in: ed64a55a22 user: drh tags: alter-table-rename-column) | |
| 20:38 | If the new column name in an ALTER TABLE RENAME COLUMN statement is quoted, then also use quotes for the column name in the edited SQL statements. (check-in: ca5184a25f user: dan tags: alter-table-rename-column) | |
| 18:34 | Avoid an assert() sometimes triggered by ALTER TABLE RENAME COLUMN in non-debug builds. (check-in: 520c1c75da user: dan tags: alter-table-rename-column) | |
| 17:49 | Fix a bug causing ALTER TABLE RENAME COLUMN to fail when renaming an IPK column that is used in a CHECK constraint. (check-in: 6595c8811f user: dan tags: alter-table-rename-column) | |
| 17:34 | Fix a bug causing all ALTER TABLE RENAME COLUMN commands to fail if ANALYZE had been run on the database. Also prevent the user from renaming the columns of system tables. (check-in: ca644a2877 user: dan tags: alter-table-rename-column) | |
| 13:40 | Reload the entire schema after renaming a column in order to ensure that the schema for any tables for which parent key definitions were changed are reloaded. (check-in: f4497b0136 user: dan tags: alter-table-rename-column) | |
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2018-08-10
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| 20:19 | Ensure the schema cookie is changed when a column is renamed. (check-in: 2dec9ea4ab user: dan tags: alter-table-rename-column) | |
| 19:33 | Fix harmless compiler warnings. (check-in: 9564d7008c user: drh tags: alter-table-rename-column) | |
| 19:19 | When a column is renamed, update any references to it in REFERENCES clauses that belong to other tables. (check-in: 191079bd4f user: dan tags: alter-table-rename-column) | |
| 15:27 | Merge latest trunk changes with this branch. (check-in: c355a83707 user: dan tags: alter-table-rename-column) | |
| 14:23 | Fix a problem with renaming columns on tables with REFERENCES clauses that specify a large number of columns. (check-in: d48f7bbdf4 user: dan tags: alter-table-rename-column) | |
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2018-08-09
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| 21:45 | Fix the isLikeOrGlob() routine in the WHERE clause processing logic so that it avoids signed/unsigned character comparisons, as that can lead to an incorrect answer if the ESCAPE clause is an invalid UTF8 string. Problem found by OSSFuzz. (check-in: 4195a3f8b5 user: drh tags: trunk) | |
| 20:47 | Experimental implementation of ALTER TABLE ... RENAME COLUMN. Still buggy. (check-in: fa0fc01eb4 user: dan tags: alter-table-rename-column) | |
| 18:36 | When a column must be a constant due to WHERE clause and the value of that column is being coded as a constant, make sure the affinity is correct. (check-in: 7404ea8316 user: drh tags: trunk) | |
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2018-08-08
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| 20:46 | Minor style improvements. (check-in: 60bbca2b9a user: mistachkin tags: trunk) | |
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2018-08-06
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| 17:12 | Allow sqlite3_snapshot_open() to be called to change the snapshot after a read transaction is already open on database. (Closed-Leaf check-in: 051ac01520 user: dan tags: exp-snapshot-open) | |
| 02:08 | Enhance the edit() function so that it converts text from \r\n back into \n only if the original unedited copy contained no \r\n values. (check-in: 20c995d3f0 user: drh tags: trunk) | |
| 01:39 | Add the --info option to the fuzzcheck test utility. (check-in: 1caaaaa70f user: drh tags: trunk) | |
| 01:21 | Fix an overzealous assert() statement discovered by OSSFuzz. (check-in: d9c9fe9f5a user: drh tags: trunk) | |
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2018-08-04
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| 20:30 | Remove the column-cache from the code generator. The column-cache has been a persistent source of bugs for years and with recent improvements in the performance of OP_Column, it no longer provides a benefit. After the column cache is removed, the binary is almost 2KB smaller and the speed-check.sh performance test is over 3 million cycles faster. (check-in: cdff3af7be user: drh tags: trunk) | |
| 20:12 | Remove a testcase() that is no longer reachable without the column cache. Provide an assert() to help prove that the testcase is no longer reachable. (Closed-Leaf check-in: a500893b6f user: drh tags: omit-column-cache) | |
| 17:15 | Fix comments that were made obsolete by the removal of the column cache. (check-in: 2041231d56 user: drh tags: omit-column-cache) | |
| 16:54 | Remove more column-cache residue: The OP_SetColTab and OP_VerifyColTab opcodes and the associated SQLITE_DEBUG_COLUMNCACHE logic. (check-in: 80236e81ce user: drh tags: omit-column-cache) | |
| 15:53 | Further logic simplifications that flow out of the omission of the column cache. (check-in: 7d9072b027 user: drh tags: omit-column-cache) | |
| 15:28 | Add test cases for the constant expression fix of the previous check-in. (check-in: 95db5bd9fe user: drh tags: trunk) | |
| 15:16 | Ensure that all expressions that are to be evaluated once at the start of a prepared statement (the Parse.pConstExpr expressions) pass the sqlite3ExprIsConstantNotJoin() test. It is not sufficient to pass just the sqlite3ExprIsConstant() test as that would allow through column references that are bound to constants by the WHERE clause in the constant propagation optimization. This fixes a problem discovered by OSSFuzz. (check-in: 8bc7f84c39 user: drh tags: trunk) | |
| 14:30 | Remove additional traces of the column cache. (check-in: db6052e972 user: drh tags: omit-column-cache) | |
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2018-08-03
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| 23:04 | Completely remove the column cache logic, which has been a persistent source of bugs for many years. Due to recent enhancements to the performance of the OP_Column opcode, removing the column cache actually makes speed-check.sh run faster. Removing the column cache also saves about 1,800 bytes of code space. (check-in: 3f5f60cd75 user: drh tags: omit-column-cache) | |
| 20:19 | Fix the handling of sub-queries with LIMIT clauses by the optimization activated by compile-time symbol SQLITE_COUNTOFVIEW_OPTIMIZATION. (check-in: 21235d9a41 user: dan tags: trunk) | |
| 15:58 | Fix the OP_SeekRowid opcode so that it has no type-change side-effects on the key register in P3. This fixes an obcure problem that arises when doing equi-joins between a table with a TEXT column against another table with an INTEGER PRIMARY KEY. The original problem was discovered when OSSFuzz created such a query and hit an assert() in OP_VerifyTabCol that was specifically designed to catch these kinds of errors at run-time. Test cases for this fix are in TH3. (check-in: fa94b49e02 user: drh tags: trunk) | |
| 13:56 | Improve "PRAGMA vdbe_trace=ON" to always show the key values for the OP_IdxGT and related opcodes. (check-in: 0f881955ed user: drh tags: trunk) | |
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2018-07-29
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| 18:56 | In the command-line shell, always exit if realloc() fails. (check-in: e390023c8e user: drh tags: trunk) | |
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2018-07-28
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| 21:01 | Add a small cost penalty to sorting to bias the query planner in favor of plans that do not require a final sorting pass. (check-in: 85b9beb460 user: drh tags: trunk) | |
| 16:24 | Do not allow a column reference that is converted into a constant by the WHERE-clause constant propagation optimization to be moved to the init-time constant expression list, as the table reference will not work there. This fixes a problem found by OSSFuzz. (check-in: d30b2a9473 user: drh tags: trunk) | |
| 14:56 | Fix an assert() statement that was made obsolete by the constant propagation enhancement. Problem discovered by OSSFuzz. (check-in: e4b4737e34 user: drh tags: trunk) | |
| 14:34 | Improved debugging output when the ".selecttrace" option is used in the shell. (check-in: fcb88dd6b0 user: drh tags: trunk) | |
| 13:37 | An early attempt at refactoring Expr (Closed-Leaf check-in: fc90a53de7 user: drh tags: expr-simplify-branch1) | |
| 01:30 | Add assert() statements to sqlite3ExprDelete() that prove various symmetry properties of the Expr object that might be exploited to make the Expr object smaller and faster. (check-in: 81f25d5c84 user: drh tags: expr-simplify) | |
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2018-07-27
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| 23:33 | Improvements to the parser to increase coverage. Fix the parser so that at least one expresssion is required after PARTITION BY and within the list of expressions on VALUES(). (check-in: 02204f8b24 user: drh tags: trunk) | |
| 22:55 | When doing a DROP VIEW do not try to delete entries from the sqlite_stat1 table as there are none. (check-in: 7efdba2bbc user: drh tags: trunk) | |
| 22:14 | Minor grammar changes that help the parser run faster by reducing the number of NUL rule reductions. (check-in: cfd1b00592 user: drh tags: trunk) | |
| 20:45 | Enhance Makefile for MSVC to support building the shell tool without using the amalgamation. (check-in: 3d815d83a6 user: mistachkin tags: trunk) | |
| 20:37 | The WHERE-clause constant propagation optimization attempts to use transitive laws to replace column values with constants in the WHERE clause in order to help to query planner make more aggressive optimizations. (check-in: f4229707ac user: drh tags: trunk) | |
| 20:01 | Reduce the performance cost of the constant propagation optimization to less than 200,000 cycles. (Closed-Leaf check-in: 865249de68 user: drh tags: propagate-const-opt) | |
| 18:19 | Performance improvement to sqlite3ExprCollSeq(). With this change, the performance of speed-check.sh is within 400,000 cycles of trunk. (check-in: a5f86f49b7 user: drh tags: propagate-const-opt) | |
| 18:12 | Faster implementation of sqlite3IsBinary(). (check-in: be05d0db09 user: drh tags: propagate-const-opt) | |
| 17:51 | Only run the constant propagation optimization on joins since that is the only scenario where it is useful. This saves prepare time for the common case of a simple query. (check-in: 598d608359 user: drh tags: propagate-const-opt) | |
| 16:57 | Constant propagation is now restricted to just the WHERE clause. The mechanism is changed to take affinity and collation into account. This seems to give correct answers. But the search for constant propagation costs 4 million cycles in the speed test. (check-in: 82c67efb72 user: drh tags: propagate-const-opt) | |
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2018-07-26
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| 23:54 | Add a test case demonstrating the collation problem with constant propagation. (check-in: 50add839fd user: drh tags: propagate-const-opt) | |
| 23:47 | Generalize the constant propagation optimization so that it applies on every WHERE close, not just those that contain a subquery. This then demonstrates that the current implementation is inadequate since it does not take into account collating sequences. (check-in: 57eb2abd5b user: drh tags: propagate-const-opt) | |
| 21:48 | In the unix VFS, give every unixInodeInfo object its own mutex, rather than using the global VFS mutex, to improve concurrency in cases where there are many threads operating on separate database files. (check-in: 22f47cf430 user: drh tags: trunk) | |
| 21:16 | Initial implementation of the WHERE-clause constant propagation optimization. (check-in: 2fb82ad8eb user: drh tags: propagate-const-opt) | |
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2018-07-25
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| 15:25 | Fix a buffer overread in fts5. (check-in: 0e3de8abbb user: dan tags: trunk) | |
| 15:12 | Keep generated opcode values grouped together when required, even when they do not correspond to a token. (check-in: 6ee2950b27 user: mistachkin tags: trunk) | |
| 07:29 | Fix a typo in the documentation for sqlite3_snapshot_get(). (check-in: cd9713c9a8 user: dan tags: trunk) | |
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2018-07-24
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| 22:02 | Do not abort running queries due to a CREATE INDEX statement. Allow them to run to completion before being reprepared. Fix for ticket [c694113e50321afdf9]. (check-in: 2bd593332d user: drh tags: trunk) | |
| 13:57 | Add missing SQLITE_OMIT_WINDOWFUNC check to the json1 extension. (check-in: fe19f8239d user: mistachkin tags: trunk) | |
|
2018-07-23
| ||
| 22:55 | Return an SQLITE_NOMEM error if the locking mutex fails to allocate. (Closed-Leaf check-in: 1c94834879 user: drh tags: separate-lock-mutex) | |
| 21:10 | First attempt at reducing mutex contention in the unix VFS by providing a separate mutex for each unixInodeInfo object. (check-in: f69afaf00a user: drh tags: separate-lock-mutex) | |
| 18:53 | Fix typo of 'SQLITE_OMIT_WINDOWFUNC'. (check-in: 8607b84a5c user: mistachkin tags: trunk) | |
| 18:32 | Attempt to improve the documentation for snapshots. No changes to code. (check-in: 46dd076af5 user: drh tags: trunk) | |
| 10:57 | Fix the macros used to generate the output of "PRAGMA compile_options" so that they handle valid values for the SQLITE_DEFAULT_LOOKASIDE macro (which contain a "," character). (check-in: 1cc72845f9 user: dan tags: trunk) | |
|
2018-07-22
| ||
| 21:23 | Fix more harmless compiler warnings seen with MSVC. (check-in: edab5666f8 user: mistachkin tags: trunk) | |
| 21:08 | Another minor revision to the 'fulltestonly' set of tests. (check-in: 61f8e2a4c6 user: mistachkin tags: trunk) | |
| 20:24 | Fix harmless compiler warning. (check-in: ead4762dfc user: mistachkin tags: trunk) | |
| 06:25 | In the Win32 VFS, when truncating a file, unmap it first. (check-in: 21510a66dc user: mistachkin tags: trunk) | |
| 00:45 | Remove an unused branch in the FK logic. (Closed-Leaf check-in: 523ff77925 user: drh tags: dropViewNoStat) | |
|
2018-07-21
| ||
| 23:15 | In 'resetdb.test', close a database prior to trying to delete it. (check-in: 45137053a5 user: mistachkin tags: trunk) | |
|
2018-07-20
| ||
| 20:56 | When dropping a view, skip trying to delete from 'sqlite_stat*'. (check-in: 2f5be3a2dd user: mistachkin tags: dropViewNoStat) | |
| 19:24 | Change the SQLITE_Stat34 bit of the optimization test-control so that it prevents STAT4 data from being used but allows it to be loaded into the Index objects. This permits STAT4 to be turned on and off on a per-statement basis. (check-in: 489f3caf5d user: drh tags: trunk) | |
| 18:01 | Experimental change to ANALYZE so that when computing values for sqlite_stat1, it uses the maximum number for the number of rows having equivalent values, rather than the average. (Leaf check-in: 085f17e124 user: drh tags: stat1-max) | |
| 15:44 | New checks in PRAGMA integrity_check to validate the autovacuum settings in the header. (check-in: a4663f09c9 user: drh tags: trunk) | |
| 13:39 | Enhanced detection of problems on the freelist and on overflow list in PRAGMA integrity_check. (check-in: 11e58f5b37 user: drh tags: trunk) | |
|
2018-07-19
| ||
| 15:27 | Avoid a branch in the commit logic that is unreachable when compiled without SQLITE_ENABLE_BATCH_ATOMIC_WRITE. (check-in: 271b8980c3 user: drh tags: trunk) | |
| 14:40 | Allow the VACUUM following SQLITE_DBCONFIG_RESET_DATABASE to proceed even if the write-version in the header indicates that the database file is not writable. (check-in: 3dca8b9d5a user: drh tags: trunk) | |
| 11:44 | Experimental fix for resetting databases that have been deemed read-only due to a corrupt "read-version" header field. (Closed-Leaf check-in: e2394002d0 user: dan tags: exp-dbreset-fix) | |
|
2018-07-18
| ||
| 19:09 | Add the SQLITE_FCNTL_DATA_VERSION file control (check-in: a5087c5c87 user: drh tags: trunk) | |
| 17:37 | Fix a harmless compiler warning in the pager. Enhance the docs for sqlite3_changes() and sqlite3_total_changes() to refer to the data_version pragma. (check-in: 4c70ea5b0e user: drh tags: trunk) | |
|
2018-07-17
| ||
| 14:01 | If an SQLITE_IOERR error is encountered as part of an atomic commit on an F2FS file-system, retry the commit in legacy journal mode. (check-in: 2e0357c2ed user: dan tags: trunk) | |
| 13:55 | Fix for builds without SQLITE_ENABLE_BATCH_ATOMIC_WRITE. (Closed-Leaf check-in: b10ec14ef7 user: dan tags: exp-retry-atomic-commit) | |
|
2018-07-16
| ||
| 20:44 | Add new file doc/F2FS.txt, containing notes on the way SQLite uses the F2FS atomic commit feature. (check-in: 59efb1bfab user: dan tags: exp-retry-atomic-commit) | |
| 11:32 | Minor simplification to sqlite3RollbackAll(). (check-in: 432fdc2215 user: drh tags: trunk) | |
|
2018-07-14
| ||
| 20:25 | If an SQLITE_IOERR error is encountered as part of an atomic commit on an F2FS file-system, retry the commit in legacy journal mode. (check-in: 1c41250f67 user: dan tags: exp-retry-atomic-commit) | |
|
2018-07-13
| ||
| 20:28 | Remove an unused function declaration from fts5. (check-in: 148d9b6147 user: dan tags: trunk) | |
| 19:52 | Add the "categories" option to the unicode61 tokenizer in fts5. (check-in: 80d2b9e635 user: dan tags: trunk) | |
|
2018-07-12
| ||
| 19:39 | Merge latest begin-concurrent changes with this branch. (check-in: d33527d223 user: dan tags: begin-concurrent-pnu) | |
| 19:28 | Merge latest trunk changes into this branch. (check-in: 6a00a34e19 user: dan tags: begin-concurrent) | |
| 19:14 | Add a test-control to disable the skip-scan optimization. (check-in: 650a3fe03d user: dan tags: trunk) | |
| 11:28 | Add a test case to check that SQLITE_DBCONFIG_RESET_DATABASE can be used with wal mode databases even if there are active readers. (check-in: 6145f5b3ba user: dan tags: trunk) | |
|
2018-07-11
| ||
| 13:34 | On an UPSERT when the order of constraint checks is rearranged, make sure that the affinity transformations on the inserted content occur before any of the constraint checks. Fix for ticket [79cad5e4b2e219dd197242e9e5f4e]. (check-in: d120c45f3d user: drh tags: trunk) | |
| 03:27 | Adjustments to VdbeCoverage macros to deal with byte-code branches that can never be taken in some directions. (check-in: b170c0092b user: drh tags: trunk) | |
|
2018-07-10
| ||
| 23:31 | Remove incorrect ALWAYS() macros from the window function logic. (check-in: 94ac51cc4e user: drh tags: trunk) | |
| 22:24 | Add VdbeModuleComment()s on the three main code generators for window functions. (check-in: f7c239e959 user: drh tags: trunk) | |
| 20:50 | Minor comment changes. Add ALWAYS() macros on some unreachable branches in the xStep() methods of built-in window functions. (check-in: f2057542cf user: drh tags: trunk) | |
| 19:48 | Identify Select objects within a single statement using small sequential integers rather than "0x%p". This is more readable and yields the same result on successive runs. (check-in: a7cdc5bc85 user: drh tags: trunk) | |
| 18:50 | Modify tests in window3.test to be tolerant of rounding errors when comparing floating point values. (check-in: 7c26c443e7 user: dan tags: trunk) | |
| 17:26 | Fix a problem with using scalar sub-selects in window function queries. (check-in: 687fe532c2 user: dan tags: trunk) | |
| 17:10 | Further improvements to bytecode branch testing. Fix cases where the macros said a branch could not be taken when in fact it could be. Alter some window function branch coverage macros to indicate that comparison operands cannot be NULL. (check-in: 76e42b7071 user: drh tags: trunk) | |
| 16:04 | Enhancements and improved documentation to the byte-code branch coverage testing logic. Provide new macros that allow the code to specify that some branch instructions can never take the NULL path and that the OP_Jump opcode is only interested in equal/not-equal. The SQLITE_TESTCTRL_VDBE_COVERAGE file control callback now works slightly differently (it provides the callback with a bitmask of the branch action, rather than an integer). (check-in: cd2da7e1ba user: drh tags: trunk) | |
| 15:55 | Experimental planner change to avoid a skip-scan if a regular index scan on the same index columns can be done instead. (Leaf check-in: 350f29ea1c user: dan tags: exp-begin-concurrent-pnu) | |
| 15:48 | Merge begin-concurrent changes into this branch. (check-in: af17432eb1 user: dan tags: begin-concurrent-pnu) | |
| 15:45 | Merge latest trunk changes into this branch. (check-in: e9a3e8642e user: dan tags: begin-concurrent) | |
| 07:39 | Fix a harmless warning about comment formatting in the previous check-in. Simplify the ORDER BY dereferencing logic so that it avoids unreachable branches. (check-in: 0f6ec605e1 user: drh tags: trunk) | |
| 07:25 | Assert that if two functions compare equal in every other way, then they must both have OVER clauses, or neither has an OVER clause. Use this fact to simplify expression comparison. (check-in: 52559ad58c user: drh tags: trunk) | |
| 06:47 | Enhance the sqlite3ExprCompare() routine so that it knows to compare the OVER clause of window functions. (check-in: 0a7649afeb user: drh tags: trunk) | |
| 06:32 | Enhance the TreeView mechanism so that it shows the window function data structures as part of the abstract syntax tree. (check-in: a2c0e1bec0 user: drh tags: trunk) | |
| 05:11 | New VDBE comments and coverage macros. (check-in: a9a307265b user: drh tags: trunk) | |
|
2018-07-09
| ||
| 22:49 | Fixes for various harmless compiler warnings. (check-in: 5023b1b85b user: drh tags: trunk) | |
| 20:58 | Add a comment to restriction (6) of the push-down optimization. No changes to code. (check-in: 0c8a2f257f user: drh tags: trunk) | |
| 20:41 | Add an ALWAYS() around a branch in sqlite3BtreeSkipNext() that we believe must always be true. (check-in: 12be361a53 user: drh tags: trunk) | |
| 18:55 | Avoid leaving view-definitions with an incomplete set of column names/types in the in-memory schema if an OOM strikes while allocating the same. (check-in: 1ddbb5372e user: dan tags: trunk) | |
| 18:11 | Add a couple of OOM tests. (check-in: 50de2a0d2d user: dan tags: trunk) | |
| 17:33 | Remove redundant branches in window function processing. (check-in: 8fdaf3f37e user: drh tags: trunk) | |
| 16:24 | Simplification to the grammar rules for window functions. Fix a memory leak that can follow an OOM while parsing a comma-separated list of window definitions. (check-in: a568f9c9db user: drh tags: trunk) | |
| 13:31 | Throw an error if the second argument passed to nth_value() is not a positive integer. (check-in: 1a06e57a0b user: dan tags: trunk) | |
| 06:51 | Fix a bad assert() in window.c. (check-in: fe8aaf0c80 user: dan tags: trunk) | |
| 02:37 | Simplification to the logic that detects misuse of the application-defined function creation interfaces. (check-in: 8f21d77845 user: drh tags: trunk) | |
| 02:02 | During WITHOUT ROWID table creation, if the sqlite3CreateTable() call fails due to an authorizer denying the INSERT into the sqlite_master table, then detect this fact and abort the CREATE TABLE early, to avoid an assertion fault. (check-in: 164b1641e3 user: drh tags: trunk) | |
|
2018-07-08
| ||
| 01:02 | Identify specific FuncDef objects for window functions using the pointer to the function name (FuncDef.zName) rather than the pointer to the xStep method. This allows xStep method pointer to be replaced with a single noopStepFunc() procedure, and thus save having lots of different no-op step functions. (check-in: 410e13b0e0 user: drh tags: trunk) | |
|
2018-07-07
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| 20:55 | Simplifications to the implementation of the sum() SQL function. (check-in: a8b1300237 user: drh tags: trunk) | |
| 20:26 | Fix another problem with reusing LSM cursors for range scans. (check-in: ae3fc7652f user: dan tags: trunk) | |
| 20:23 | Fix the JSON extension so that it can be compiled separately from the amalgamation. (check-in: 4b8cfe7bfe user: drh tags: trunk) | |
| 20:13 | Fix an LSM problem caused by using the same cursor for equality and range scans. (check-in: f05bead371 user: dan tags: trunk) | |
| 19:47 | Add ALWAYS() macros on results of sqlite3_aggregate_context() calls in xInverse() implements, since they can never fail. (check-in: fdef2a921d user: drh tags: trunk) | |
| 19:36 | Add an assert() to help verify that OP_AggInverse is never called on an accumulator that has not previously been processed by OP_AggStep. (check-in: 4213889103 user: drh tags: trunk) | |
| 17:38 | Add missing VdbeCoverage() macro to window.c. (check-in: 63f4d306ba user: dan tags: trunk) | |
| 17:30 | Fix a problem with the handling of NULL values in the min() window function. (check-in: b76f35b092 user: dan tags: trunk) | |
|
2018-07-06
| ||
| 17:19 | Try to improve the error messages for misformed frame specifications in window definitions. (check-in: 927b95a081 user: drh tags: trunk) | |
| 14:31 | Also disallow non-constant expressions in "<expr> PRECEDING" or "<expr> FOLLOWING" clauses. (check-in: a6dffecc6b user: dan tags: trunk) | |
| 14:15 | Ensure an error is returned if the user specifies an unsupported frame type. (check-in: 0f3f8fcde1 user: dan tags: trunk) | |
| 13:48 | Prevent "UNBOUNDED FOLLOWING" from being used as the starting boundary of a window-frame. And "UNBOUNDED PRECEDING" from being used as the ending boundary. (check-in: e51fdf66a2 user: dan tags: trunk) | |
| 13:25 | Remove some bad assert() statements from the implementations of window functions percent_rank() and cume_dist(). (check-in: 443f0c286f user: dan tags: trunk) | |
| 07:42 | Return an error if DISTINCT is used with a window-function (e.g. "count(DISTINCT <expr>) OVER (...)"). (check-in: d59bcc8eea user: dan tags: trunk) | |
|
2018-07-05
| ||
| 21:22 | Use separate opcodes, OP_AggValue and OP_AggInverse, for the new callbacks associated with Window Functions, for improved readability of EXPLAIN output. (check-in: fa65380509 user: drh tags: trunk) | |
| 20:33 | Update the recipe for resetting a database using SQLITE_DBCONFIG_RESET_DATABASE. (check-in: c43dd23fb0 user: dan tags: trunk) | |
| 20:05 | Get the json_group_array() and json_group_object() SQL functions working as window functions. (check-in: 916cdc83f5 user: drh tags: trunk) | |
| 18:34 | Return an error if a "RANGE" window-frame uses "<expr> PRECEDING" or "<expr> FOLLOWING". (check-in: 786c87ba41 user: dan tags: trunk) | |
| 18:19 | Fix a problem in the xInverse method of window-function group_concat(1). (check-in: 7339128310 user: dan tags: trunk) | |
| 17:35 | Fix the .dump command in the command-line shell so that it does not show extraneous SELECT statements when ".echo on" is enabled. (check-in: 11763cac33 user: drh tags: trunk) | |
| 17:16 | In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. (check-in: e6108047cb user: dan tags: trunk) | |
| 17:03 | Fix a typo inside an assert() statement introduced by the previous commit. (Closed-Leaf check-in: e335772847 user: dan tags: exp-busy-snapshot-fix) | |
| 15:46 | In wal mode, if a "BEGIN EXCLUSIVE" command (or any other command that upgrades from no transaction directly to a write transaction) hits an SQLITE_BUSY_SNAPSHOT error, change the error code to SQLITE_BUSY to indicate to the caller that the condition may be transient. (check-in: 221ff63e79 user: dan tags: exp-busy-snapshot-fix) | |
|
2018-07-04
| ||
| 14:28 | Experimental planner change to avoid a skip-scan if a regular index scan on the same index columns can be done instead. (Leaf check-in: 32924446db user: dan tags: exp-avoid-expensive-skipscan) | |
|
2018-07-03
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| 20:17 | Test that a race condition can cause a "BEGIN EXCLUSIVE" to return SQLITE_BUSY_SNAPSHOT in wal mode. (check-in: 5a12db75d1 user: dan tags: trunk) | |
|
2018-07-02
| ||
| 17:45 | Fix a problem in the xInverse callback for the built-in sum() window function. (check-in: b656364738 user: dan tags: trunk) | |
| 17:14 | Fix a segfault caused by having identical window functions in the select-list and ORDER BY clause of a SELECT statement. (check-in: 693b4350d7 user: dan tags: trunk) | |
| 15:03 | Fix a crash caused by a LIKE pattern that consists of a single escape character. Problem found by OSSFuzz. (check-in: bb9bfc3a12 user: dan tags: trunk) | |
| 12:07 | Fix a segfault caused by invoking a regular aggregate as a window-function. And some problems with count(*) when used as a window-function. (check-in: 4f3c8a82fd user: dan tags: trunk) | |
|
2018-07-01
| ||
| 16:05 | Quick patch to the Lemon parser template to avoid an array overread reported by OSSFuzz. A proper fix involves enhancements to the table generators in Lemon to make the overread impossible. That fix will take longer to implement. The current check-in is a stop-gap. (check-in: 3f6730be4c user: drh tags: trunk) | |
|
2018-06-30
| ||
| 20:26 | Avoid a warning in fts5.c due to not using generated routine sqlite3Fts5ParserFallback(). (check-in: 65ff5144a5 user: dan tags: trunk) | |
| 20:15 | Merge implementation of SQL window functions from the exp-window-functions into trunk. (check-in: 17198a1206 user: dan tags: trunk) | |
| 20:00 | Fix a minor problem in the code for determining whether or not an SQL statement is SQLITE_TOOBIG. (Closed-Leaf check-in: 763e6c9e2b user: dan tags: exp-window-functions) | |
| 19:12 | Merge all changes from the weak-fallback branch except those related to the weak-fallback feature itself. (check-in: aad718fb1a user: dan tags: exp-window-functions) | |
| 18:54 | Have the tokenizer handle fallback for tokens "OVER" and "FILTER" in the same way as it does for "WINDOW". (Leaf check-in: 12d819e1c1 user: dan tags: weak-fallback) | |
|
2018-06-29
| ||
| 20:43 | Further performance related tweaks for sqlite3RunParser(). (check-in: 5eb4776598 user: dan tags: weak-fallback) | |
| 20:21 | Further tweaks to sqlite3RunParser(). (check-in: eef61ffab7 user: dan tags: weak-fallback) | |
| 19:54 | Improve on the previous checkin. Still a bit slow. (check-in: c1fb41aa7b user: dan tags: weak-fallback) | |
| 17:44 | Instead of using a lemon %fallback directive, have the tokenizer try to figure out whether an instance of "WINDOW" should be TK_WINDOW or TK_ID. (check-in: 022079cb0d user: dan tags: weak-fallback) | |
|
2018-06-28
| ||
| 20:05 | Modifications to parse.y to better support backwards compatibility for the "window" keyword. (check-in: 7c4b879bdb user: dan tags: weak-fallback) | |
| 03:38 | Introduce the concept of "weak fallback" in the parser. A weak fallback only occurs if a syntax error would result otherwise. (check-in: c41d7079fb user: drh tags: weak-fallback) | |
|
2018-06-27
| ||
| 20:24 | Add missing VdbeCoverage() and VdbeCoverageNeverTaken() macros to window.c. (check-in: 4383cb68a1 user: dan tags: exp-window-functions) | |
| 19:48 | Avoid redundant ORDER BY operations when rewriting SELECT statements that contain window functions. (check-in: 336de43a47 user: dan tags: exp-window-functions) | |
|
2018-06-26
| ||
| 20:19 | Merge latest trunk changes. (check-in: d9f814b443 user: dan tags: exp-window-functions) | |
|
2018-06-25
| ||
| 20:34 | Add documentation comment for sqlite3_create_window_function(). And further tests. (check-in: 3f2705b933 user: dan tags: exp-window-functions) | |
| 11:42 | Fix another problem that could cause a crash when a window function was used in a view. (check-in: e954145a3a user: dan tags: exp-window-functions) | |
|
2018-06-23
| ||
| 19:29 | Fix problems with using window-functions in correlated sub-queries. (check-in: 3e23cfc813 user: dan tags: exp-window-functions) | |
| 16:26 | Fix a problem with using LIMIT in window-function queries. (check-in: c1abd2dda4 user: dan tags: exp-window-functions) | |
| 07:59 | Fix a problem with using a window-function SELECT as a FROM clause sub-query in some circumstances. (check-in: 11d733396f user: dan tags: exp-window-functions) | |
|
2018-06-22
| ||
| 20:51 | Omit all window-function related code when building with SQLITE_OMIT_WINDOWFUNC. (check-in: 5f04b01646 user: dan tags: exp-window-functions) | |
| 17:57 | Merge latest trunk changes. (check-in: ebe65b2386 user: dan tags: exp-window-functions) | |
|
2018-06-21
| ||
| 23:53 | Improved context for error_log message coming from sqlite3_prepare(). (check-in: fea7ade649 user: drh tags: trunk) | |
| 23:43 | Improved context for error_log message coming from sqlite3_prepare(). (Leaf check-in: 64df1189b3 user: drh tags: ieee754) | |
| 19:20 | Fix a problem with handling single row partitions in the percent_rank() window function. (check-in: b84fbf16ea user: dan tags: exp-window-functions) | |
|
2018-06-20
| ||
| 09:23 | Add tests to improve coverage of code in window.c. Fix a problem with "SELECT row_number() OVER ()". (check-in: f41b6b7317 user: dan tags: exp-window-functions) | |
|
2018-06-19
| ||
| 21:15 | Make the ieee754() a built-in function. Add the --ieee754 option to the ".dump" command in the shell to cause it to output floating-point values as ieee754() calls, so that the floating point number will be reproduced exactly. Not sure yet that we want to go this way, but it is one option. (check-in: 7fa8f16e58 user: drh tags: ieee754) | |
| 19:16 | The file_control_ofd_locks TCL command in testfixture distinguishes between OFD locks unavailable on the platform and OFD locks not used. (Leaf check-in: 87a9e9d776 user: drh tags: ofd-locks) | |
| 19:15 | Merge latest trunk changes with this branch. (check-in: 6ad0e64b46 user: dan tags: exp-window-functions) | |
| 19:01 | OFD locks are now mostly working, but need additional tests. (check-in: 4f1fb5c94b user: drh tags: ofd-locks) | |
| 18:11 | Fix a problem caused by a sub-query containing a window function in the FROM clause of a query that itself uses a window function. (check-in: f4b1b6f85b user: dan tags: exp-window-functions) | |
| 17:19 | Miscellaneous cleanup of OFD logic. Add an #if 0 to disable the use of OFD logic, temporarily, until I can get it to actually work. (check-in: d849ade396 user: drh tags: ofd-locks) | |
| 17:13 | Fix a problem with using min() or max() as a window function. (check-in: 801074ce63 user: dan tags: exp-window-functions) | |
| 13:45 | Initial attempt to get SQLite working with OFD locks on Linux. The code here does not function correctly. This is an incremental check-in for a work in progress. (check-in: 148f8dec9a user: drh tags: ofd-locks) | |
| 11:15 | Minor change to the input grammar to make the parser tables slightly smaller. (check-in: 320fa69e6a user: drh tags: trunk) | |
|
2018-06-18
| ||
| 20:34 | Fix problems with using window functions in CREATE VIEW statements. (check-in: 943bccd2a6 user: dan tags: exp-window-functions) | |
| 20:08 | Add test case for the fix in the previous commit. (check-in: 39434262d5 user: dan tags: trunk) | |
| 19:09 | Fix typo in the 'normalize' extension. (check-in: 0c9163ea23 user: mistachkin tags: trunk) | |
| 17:36 | Ensure that all four callbacks are provided when registering a window function (otherwise SQLITE_MISUSE is returned). (check-in: 5720dcd8b1 user: dan tags: exp-window-functions) | |
| 16:55 | Add new API function sqlite3_create_window_function(), for creating new aggregate window functions. (check-in: da03fb4318 user: dan tags: exp-window-functions) | |
|
2018-06-15
| ||
| 20:46 | Add extra OOM test. (check-in: ac251f7260 user: dan tags: exp-window-functions) | |
| 19:01 | Fix another problem in lead()/lag(). And some errors that could occur following OOM faults. (check-in: fadd4dc119 user: dan tags: exp-window-functions) | |
| 16:10 | Fix a bug in the lead() and lag() window functions causing them to fail when used in queries featuring multiple window functions. (check-in: 3839fb18f9 user: dan tags: exp-window-functions) | |
|
2018-06-14
| ||
| 20:52 | Fix a problem with handling of statements containing two or more different windows. (check-in: 567e09ef2a user: dan tags: exp-window-functions) | |
| 19:06 | Fix problem with window functions min() and max() when used with a PARTITION clause and a frame starting point other than "UNBOUNDED PRECEDING". (check-in: 43eb1e75a4 user: dan tags: exp-window-functions) | |
| 14:30 | Merge latest trunk changes into this branch. (check-in: 5cf5f1808a user: dan tags: exp-window-functions) | |
| 14:27 | Improve comments and code legibility in new file window.c. (check-in: bb915854d4 user: dan tags: exp-window-functions) | |
|
2018-06-13
| ||
| 20:29 | Fix problems with "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frames. (check-in: c34f31dbd7 user: dan tags: exp-window-functions) | |
| 17:19 | Output infinity as 1e999 in the ".dump" command of the command-line shell. (check-in: ee431d55eb user: drh tags: trunk) | |
| 16:52 | Pad out the sqlite3_value structure to be a multiple of 8 bytes. (check-in: f76dc33bde user: drh tags: trunk) | |
| 16:08 | Fix some test case numbers in expert1.test. (check-in: b90c3c16c0 user: dan tags: trunk) | |
| 11:41 | Unless SQLITE_OMIT_AUTOINIT is defined, allow sqlite3_vfs_unregister() to be called before sqlite3_initialize(). (check-in: ab6c1ae46d user: dan tags: trunk) | |
| 11:11 | Check that malloc() has not already failed when invoking the xUpdate() method of a virtual table implementation. This fixes an assert() failure in FTS5 that could occur following an OOM condition. (check-in: e9a7e4d58f user: dan tags: trunk) | |
| 02:20 | Add the unused SQLITE_CANTOPEN_DIRTYWAL result code. This code was used in some historical versions on the apple-osx branch but was removed by check-in [27e20d699872b2b8]. Restore it so that old code that actually references that result code will still compile. (check-in: 9f40383eed user: drh tags: trunk) | |
|
2018-06-12
| ||
| 20:53 | Fix another issue to do with window-functions in aggregate queries. (check-in: 6413e38a17 user: dan tags: exp-window-functions) | |
| 19:35 | Documentation update: clarify that sqlite3_errcode() and related interfaces do not themselves modify the error code. (check-in: 858fc52b23 user: drh tags: trunk) | |
| 19:22 | Documentation updates: clarify the behavior of sqlite3_column and sqlite3_value interfaces following an OOM error. (check-in: 428c581e4b user: drh tags: trunk) | |
| 18:40 | Fix some problems with using window-functions in aggregate queries. (check-in: fe7081e095 user: dan tags: exp-window-functions) | |
| 13:52 | Improvements to SCopy correctness tracking when SQLITE_DEBUG is enabled. (check-in: b2973f2357 user: drh tags: trunk) | |
| 13:16 | Fix the "Synopsis" on the OP_BitNot opcode. (check-in: acd78df611 user: drh tags: trunk) | |
|
2018-06-11
| ||
| 21:33 | Improvements to the --enable and --disable options for the amalgamation tarball. (check-in: 02e337e080 user: drh tags: trunk) | |
| 20:50 | Clarify the relationship between a Window object and its associated Expr. (check-in: 0cd55e98a4 user: dan tags: exp-window-functions) | |
| 19:47 | Fix various --enable and --disable options on the top-level configure script. (check-in: 6fd7e8ceb9 user: drh tags: trunk) | |
| 18:16 | Fix handling of window frames containing negative number of rows. e.g. "ROWS x PRECEDING AND y PRECEDING" where (x<y). (check-in: b6d9c7eda8 user: dan tags: exp-window-functions) | |
| 18:06 | Fix the column cache invalidation logic in the code for ROWID uniqueness constraint checking in the INSERT command. This fixes ticket [c2432ef9089ee73bd]. (check-in: 0b485a571c user: drh tags: trunk) | |
| 17:35 | Add the OP_SetTabCol and OP_VerifyTabCol opcodes, only when compiling with SQLITE_DEBUG, to do run-time verification of the column cache. (check-in: b37614a367 user: drh tags: trunk) | |
| 13:10 | Strengthen the sqlite3VdbeMemAboutToChange() run-time verification mechanism to better detect missed calls to AboutToChange(). (check-in: 793e942205 user: drh tags: trunk) | |
| 11:19 | Fix a typon in main.mk. (check-in: e74f86f271 user: dan tags: exp-window-functions) | |
| 01:30 | Always initialize the WhereClause.hasOr field that was added by check-in [292724ffc4]. Error detected by OSSFuzz. (check-in: 9faf41713e user: drh tags: trunk) | |
|
2018-06-10
| ||
| 07:42 | Update Makefile.msc to include window.c in the build. (check-in: 16db73842a user: dan tags: exp-window-functions) | |
|
2018-06-09
| ||
| 20:52 | Fix a typo in the amalgamation autoconf file. (check-in: de0857f396 user: drh tags: trunk) | |
| 18:09 | Merge recent trunk changes with this branch. (check-in: c71f23590c user: dan tags: exp-window-functions) | |
| 17:58 | Update the amalgamation build script to include window.c. (check-in: 21d2f4a62e user: dan tags: exp-window-functions) | |
| 17:43 | Add support for FILTER clause on aggregate window functions. (check-in: ceaf798ea0 user: dan tags: exp-window-functions) | |
| 16:49 | Slightly smaller and faster code by encapsulating wal-index hash table location information in a separate WalHashLoc object rather than passing around the various elements as separate variables. (check-in: 538a365b7a user: drh tags: trunk) | |
| 14:13 | Improved comments an presentation for the recent IN operator decision improvement. (check-in: 31e480f68d user: drh tags: trunk) | |
| 02:49 | Performance improvement to sqlite3WhereExprUsage(). (check-in: fd09341390 user: drh tags: trunk) | |
| 01:12 | Compute the bitmask of indexed columns for each index once when the Index objecct is constructed, instead of recomputing it every time it is needed. (check-in: d735872ec3 user: drh tags: trunk) | |
| 00:09 | Avoid invoking the whereLoopAddOr() routine in the query planner if there are no OR operators in the WHERE clause, thus speeding up query planning slightly. (check-in: 292724ffc4 user: drh tags: trunk) | |
|
2018-06-08
| ||
| 23:23 | When the query planner has the opportunity to use an IN operater constraint on a term of an index other than the left-most term, use the estimated number of elements on the right-hand side of the IN operator to determine if makes sense to use the IN operator with index lookups, or to just do a scan over the range of the table identified by the index terms to the left. Only do this if sqlite_stat1 measurements are available as otherwise the performance estimates will not be accurate enough to discern the best plan. Bias the decision slightly in favor of using index lookups on each element of the IN operator. (check-in: 2cbbabdf5e user: drh tags: trunk) | |
| 21:21 | Only choose to scan an IN operator rather than use an index if we have real STAT1 data to suggest it is advantageous. (Closed-Leaf check-in: 30e874661d user: drh tags: in-scan-vs-index) | |
| 20:58 | Add support for the WINDOW clause. (check-in: 19c983b511 user: dan tags: exp-window-functions) | |
| 19:54 | Merge the btreeNext() assertion bug fix from trunk. (check-in: 11bd66e090 user: drh tags: in-scan-vs-index) | |
| 19:13 | Fix an assert() that can be false for a corrupt database and a strange query that uses a recursive SQL function to delete content from a corrupt database file while it is being queried. (check-in: 99057383ac user: drh tags: trunk) | |
| 18:22 | Consider doing a partial table scan to fulfill an IN operator rather than using an index. Try to pick the plan with the lowest cost. (check-in: 1fa40a78fe user: drh tags: in-scan-vs-index) | |
| 16:11 | Do not flatten sub-queries that contain window functions. (check-in: 236cb75bd1 user: dan tags: exp-window-functions) | |
| 11:45 | Fixes to allow group_concat() to be used as a window function. (check-in: 89bbc9ba8f user: dan tags: exp-window-functions) | |
|
2018-06-07
| ||
| 20:35 | Merge latest trunk changes with this branch. (check-in: 2510220342 user: dan tags: exp-window-functions) | |
| 20:08 | Add window functions lag() and lead(). (check-in: ef34207073 user: dan tags: exp-window-functions) | |
| 18:13 | The IN-early-out optimization: When doing a look-up on a multi-column index and an IN operator is used on a column other than the left-most column, then if no rows match against the first IN value, check to make sure there exist rows that match the columns to the right before continuing with the next IN value. (check-in: 09fffbdf9f user: drh tags: trunk) | |
| 18:01 | Fix the assert()s in the byte-code engine that prove that cursors are unidirectional. (Closed-Leaf check-in: 4b0b4e1403 user: drh tags: multikey-opt-idea) | |
| 17:45 | Add support for window function first_value(). (check-in: 060b264028 user: dan tags: exp-window-functions) | |
| 17:32 | Remove the NextIfOpen and PrevIfOpen opcodes which are no longer needed when the IN-early-out optimization is working. (check-in: 439c816227 user: drh tags: multikey-opt-idea) | |
| 16:07 | Test cases. (check-in: 085e863713 user: drh tags: multikey-opt-idea) | |
| 15:54 | Fix problems with the nth_value() function. (check-in: 63002b9a09 user: dan tags: exp-window-functions) | |
| 15:28 | Merge the ".stat/.eqp" CLI fix from trunk. (check-in: a91cad3381 user: drh tags: multikey-opt-idea) | |
| 15:23 | Avoid using a prepared statement for ".stats on" after it has been closed by the ".eqp full" logic. Fix for ticket [7be932dfa60a8a6b3b26bcf76]. (check-in: bb87c054b1 user: drh tags: trunk) | |
| 14:59 | Add the WHERE_IN_EARLYOUT flag and use it to clarify the logic of this optimization. (check-in: 522f1eacc2 user: drh tags: multikey-opt-idea) | |
| 14:32 | Merge recent trunk enhancements. (check-in: e9d7bf4f7b user: drh tags: multikey-opt-idea) | |
|
2018-06-06
| ||
| 23:31 | Change a comma into a logically equivalent but semantically clearer semicolon. (check-in: 71f97f0f82 user: drh tags: trunk) | |
| 20:55 | More space and performance enhancements to sqlite3VdbeRecordCompare(). (check-in: 83a60ff056 user: drh tags: trunk) | |
| 20:51 | Add implementation of nth_value() window function. (check-in: eb1fb420ac user: dan tags: exp-window-functions) | |
| 20:29 | Small performance optimization in sqlite3VdbeRecordCompareWithSkip() for the common case where the comparison is equal. (check-in: 1e616e256a user: drh tags: trunk) | |
| 19:48 | Rearrange the order of some checks in the integrity_check pragma for a very slight performance gain. (check-in: 4b853f0205 user: drh tags: trunk) | |
| 18:50 | Fix the sqlite3BeginTrans() calls within the snapshot extension. (check-in: 1fef7ad25b user: drh tags: trunk) | |
| 17:45 | Another minor optimization to OP_Transaction. (check-in: d80077aee3 user: drh tags: trunk) | |
| 17:12 | Merge the 3.24.0 changes plus a few subsequent enhancements. (check-in: be7004a971 user: drh tags: begin-concurrent-pnu) | |
| 17:03 | Merge changes from trunk, including all the 3.24.0 changes plus some later enhancements. (check-in: d7299bfeb1 user: drh tags: begin-concurrent) | |
| 16:28 | Change sqlite3BtreeBeginTrans() to return the BTREE_SCHEMA_COOKIE, for a small speed improvement when starting new transactions. (check-in: a10662aa91 user: drh tags: trunk) | |
| 01:18 | Fix the ".archive" command in the CLI (and the corresponding -A command-line option) so that it silently ignores filenames that contain "../" in their names. This prevents the "Zip Slip" attack. (check-in: 27291f2d7f user: drh tags: trunk) | |
| 00:36 | Attempt to optimize the resolveExprStep() routine by mapping Expr opcodes into a subset of opcodes that resolveExprStep() cares about and only calling the routine when those opcodes are encountered. Is slightly faster, but it seems like the very slight performance bump is not worth the added complexity. Saved on a dead-end branch for historical reference. (Closed-Leaf check-in: bad4d7a0d9 user: drh tags: dead-end) | |
|
2018-06-05
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| 23:51 | Update the version number to 3.25.0 for the next development cycle. (check-in: 7598236c35 user: drh tags: trunk) | |
| 23:21 | Avoid unnecessary loads of columns in an aggregate query that are not within an aggregate function and that are not part of the GROUP BY clause. (check-in: e15e100660 user: drh tags: trunk) | |
| 20:45 | Add the OP_IfNoHope and OP_SeekHit opcodes used to reduce the number of unnecessary sqlite3BtreeMovetoUnpacked() calls when checking for an early exit on IN-operator loops. Futher optimizations are likely possible here. (check-in: 6bf251af43 user: drh tags: multikey-opt-idea) | |
| 20:04 | Calculate non-aggregate expressions in the SELECT list of an aggregate query that does not use min() or max() once per group, instead of once per row visited. (Closed-Leaf check-in: dce2dfbe15 user: dan tags: exp-agg-opt) | |
| 16:16 | Add implementation of last_value() window function. (check-in: 2493ce1a40 user: dan tags: exp-window-functions) | |
| 15:16 | Use an OP_NotFound opcode to cancel futile IN operators early. The current implementation is suboptimal because it always runs teh OP_NotFound. This still needs to be enhanced to only do the OP_NotFound if no results have been seen on the current loop. (check-in: 87a9fc504f user: drh tags: multikey-opt-idea) | |
| 13:54 | Merge trunk changes. (check-in: 047295c588 user: drh tags: multikey-opt-idea) | |
| 13:43 | Update and correct the documentation on the OP_OpenRead, OP_OpenWrite, and OP_ReopenIdx opcodes. No code changes other than the addition of an assert(). (check-in: 8a0b730d0e user: drh tags: trunk) | |
|
2018-06-04
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| 19:24 | Version 3.24.0 (check-in: c7ee083322 user: drh tags: trunk, release, version-3.24.0) | |
| 18:55 | Add implementation of window function ntile(). (check-in: 3f093f608c user: dan tags: exp-window-functions) | |
| 14:10 | Merge changes from trunk. (check-in: 95fbac39ba user: drh tags: apple-osx) | |
| 13:27 | Merge recent changes from trunk. (check-in: f8df2a8e28 user: drh tags: multikey-opt-idea) | |
| 08:28 | Merge latest trunk changes into this branch. (check-in: 83d6416a86 user: dan tags: exp-window-functions) | |
| 08:22 | Add support for window function cume_dist(). Improve tests for percent_rank(). (check-in: 76543f7dd3 user: dan tags: exp-window-functions) | |
|
2018-06-02
| ||
| 21:04 | Add support for window functions row_number(), rank(), dense_rank() and percent_rank(). (check-in: 91c1cb7a21 user: dan tags: exp-window-functions) | |
| 19:14 | Avoid using a misaligned pointer. (check-in: 1ecb3aa13d user: drh tags: trunk) | |
| 19:01 | Fix the usage of posix_fallocate() so that it correctly responds to EINVAL returns. (check-in: ce2c3e7a87 user: drh tags: trunk) | |
| 17:00 | Update a test case in malloc5.test to take into account that malloc() sometimes returns slightly more space than requested. (check-in: 3d5eae1c26 user: dan tags: trunk) | |
| 16:32 | Work around a sanitizer warning about a pointer being only 4-byte aligned instead of 8-byte aligned. (Closed-Leaf check-in: 1b807b51cd user: drh tags: align8-fix) | |
| 14:37 | Proposed fix for the use of posix_fallocate() so that it handles EINVAL returns correctly. (Closed-Leaf check-in: ab3a5539db user: drh tags: einval-from-fallocate) | |
| 12:05 | Fix the CSV extension so that it works with single-column CSV files. (check-in: e336cf0048 user: drh tags: trunk) | |
| 11:31 | Ensure that sqlite3AuthRead() is only call for TK_COLUMN and TK_TRIGGER expression nodes. This fixes a harmless assert() identified by OSSFuzz. Move the assert() into a position where it is tested even if the authorizer is disabled. (check-in: d0c3beef7c user: drh tags: trunk) | |
|
2018-06-01
| ||
| 21:00 | Allow an entire partition to be cached in a temp table for all types of window frames. This is required by nth_value() and others. (check-in: b5b18f6613 user: dan tags: exp-window-functions) | |
| 13:30 | Fix a bug in the SQLITE_ENABLE_SORTER_REFERENCES code causing an out-of-bounds array reference. (check-in: 8cadaf587d user: dan tags: trunk) | |
|
2018-05-31
| ||
| 19:14 | More documentation typo fixes. No code changes. (check-in: 66c24513c2 user: drh tags: trunk) | |
| 19:00 | Fix a harmless typo in a comment used to generate documentation. (check-in: 5a2a88cb01 user: drh tags: trunk) | |
|
2018-05-30
| ||
| 20:44 | Allow min() and max() to be used as window functions. (check-in: c16125a884 user: dan tags: exp-window-functions) | |
| 14:17 | Add the Makefile.fallback makefile to the amalgamation tarball. (check-in: ce3d045633 user: drh tags: trunk) | |
| 07:36 | Do not use the codec on the resetdb.test script. (check-in: fe55cea0c8 user: drh tags: trunk) | |
| 07:24 | Fix a typo in an error message in the CLI. (check-in: 8088398081 user: drh tags: trunk) | |
| 01:14 | Fix the parser so that it builds with -DSQLITE_OMIT_CTE. (check-in: 86ee267ee8 user: drh tags: trunk) | |
| 00:59 | Fix a harmless compiler warning. (check-in: 8d02c7a6a0 user: drh tags: trunk) | |
| 00:54 | Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. (check-in: 92f0fe155d user: drh tags: multikey-opt-idea) | |
|
2018-05-29
| ||
| 19:12 | Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000). (check-in: 3b00f73456 user: dan tags: trunk) | |
| 17:17 | Fix a problem in the geopoly json parser associated with spaces before a coordinate number. (check-in: 9d8d3af89a user: drh tags: rtree-geopoly) | |
| 16:37 | Fix autoinc.test and resetdb.test so that they work with all permutations. (check-in: 89f56d6b0a user: dan tags: trunk) | |
| 15:18 | Add a comment to justify a goto statement. No code changes. (check-in: f141d80647 user: drh tags: trunk) | |
| 14:29 | More minor changes to test scripts. (check-in: ce9b756f09 user: dan tags: trunk) | |
| 14:06 | Fix some test script issues caused by recent EXPLAIN QUERY PLAN enhancements. (check-in: f808e22831 user: dan tags: trunk) | |
| 13:25 | Do not run test file "resetdb.test" as part of permutation "inmemory_journal". (check-in: 4921e5bae4 user: dan tags: trunk) | |
|
2018-05-28
| ||
| 23:59 | The geopoly virtual table seems to be working. But only thinly tested so far. (check-in: 4288f1ad59 user: drh tags: rtree-geopoly) | |
| 18:30 | Further window frame tests and fixes. (check-in: e74c6e9185 user: dan tags: exp-window-functions) | |
| 18:29 | Do not require a statement journal in cases where REPLACE conflict handling is used to insert a single row, so long as the REPLACE operation cannot fire any triggers or foreign key actions. (check-in: 469a62ca33 user: dan tags: trunk) | |
| 18:25 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: ce99c77244 user: drh tags: trunk) | |
| 17:43 | Fix the build so that it works with -DSQLITE_TEST_REALLOC_STRESS (Closed-Leaf check-in: 90ba2b2e5c user: drh tags: stmt-journal-testing) | |
| 17:31 | When compiling with SQLITE_DEBUG, add run-time checks to ensure that no statement aborts unless either there have been no writes or else there is a statement journal. (check-in: 5a4542dbcf user: drh tags: stmt-journal-testing) | |
| 13:23 | Untested incremental check-in. Add the geopoly_xform() function. Complete basic logic for the geopoly virtual table. (check-in: ed06cc3256 user: drh tags: rtree-geopoly) | |
|
2018-05-26
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| 21:17 | More fixes for different window frame types. (check-in: 2c85668a0f user: dan tags: exp-window-functions) | |
| 20:04 | Merge the ability to plan virtual table queries using overloaded functions. (check-in: 2c2a202c14 user: drh tags: rtree-geopoly) | |
| 18:03 | Experimental change that allows overloaded functions to be analyzed by the xBestIndex method and used by the xFilter method of a virtual table. (Leaf check-in: a353b1d7ee user: drh tags: vtab-func-constraint) | |
| 16:00 | Store application-defined function names as lower-case to avoid the need for case conversions before calling xFindFunction on virtual tables. Avoid using lookaside to store the destructors for application defined functions, as lookaside should be reserved for transient allocations. (check-in: 777189ce88 user: drh tags: trunk) | |
| 13:55 | Add a single sentence of documentation about the virtual table scan flags. No changes to code. (check-in: 27b4fa5dd0 user: drh tags: trunk) | |
| 12:21 | Minor correction. (check-in: f20d9a99a4 user: drh tags: rtree-geopoly) | |
|
2018-05-25
| ||
| 22:39 | Untested incremental check-in. Basic infrastructure for geopoly in place, except for the MATCH operator. (check-in: b27451910b user: drh tags: rtree-geopoly) | |
| 20:53 | Incremental check-in: Progress toward implementing the geopoly vtab. (check-in: 9b7d6f986a user: drh tags: rtree-geopoly) | |
| 20:30 | Fix "RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING" window frame processing. (check-in: b4e9c68669 user: dan tags: exp-window-functions) | |
| 19:22 | Forward port the geopoly extension functions into the r-tree extension, with the idea of creating a new spatial index based on simply polygons. (check-in: 0593aac88a user: drh tags: rtree-geopoly) | |
| 14:39 | This is an untested proof-of-concept for enhancements to RTree that attempt to use sqlite3_value_nochange() to reduce the amount of work associated with UPDATE operations in cases where either the coordinates or the auxiliary data is unchanged. (Leaf check-in: 6f7cfeff70 user: drh tags: rtree-update-optimization) | |
| 09:36 | Merge latest trunk changes into this branch. (check-in: 6232519899 user: dan tags: exp-window-functions) | |
| 09:29 | Fixes for "ROWS BETWEEN <expr> FOLLOWING AND <expr> FOLLOWING" and "ROWS BETWEEN <expr> FOLLOWING AND UNBOUNDED FOLLOWING" (check-in: 5ac44872fd user: dan tags: exp-window-functions) | |
| 03:46 | Add SQLITE_LOCKED_VTAB and SQLITE_CORRUPT_SEQUENCE to sqlite3ErrName(). Also, use SQLITE_CORRUPT_BKPT in one more place. (Leaf check-in: eac8888db3 user: mistachkin tags: errCodes) | |
|
2018-05-24
| ||
| 23:51 | When doing a one-pass UPDATE or DELETE on virtual tables, close the cursor prior to running VUpdate. This allows one-pass to work on virtual tables that do not allow concurrent reads and writes. Enhance rtree to take advantage of this new capability. (check-in: b816023ce0 user: drh tags: trunk) | |
| 22:42 | New test case for reading and writing the same rtree concurrently. (check-in: 3ba08e53d5 user: drh tags: trunk) | |
| 22:31 | Do not allow RTree writes when a read cursor is active on the same virtual table, as the writes might rebalance and disrupt the read cursors. Return the new SQLITE_LOCKED_VTAB error code if this happens. (check-in: d4ce666108 user: drh tags: trunk) | |
| 21:10 | Allow "<expr> PRECEDING" to be used to specify the end of a window frame. (check-in: 7b709a989c user: dan tags: exp-window-functions) | |
| 17:49 | Support other frame types that use "<expr> PRECEDING" or "<expr> FOLLOWING" as start or end conditions. (check-in: ec7b648c7f user: dan tags: exp-window-functions) | |
| 17:38 | In the OOM testing logic, add the sqlite3FirstFault() routine as a place to set a breakpoint the first time any simulated OOM fault occurs for a single test case. (check-in: b4d80bd287 user: drh tags: trunk) | |
| 17:25 | Fix a typo in a comment used to generate VDBE opcode documentation. No code changes. (check-in: 36cdfbf2ce user: drh tags: trunk) | |
| 16:18 | Addition cases for rtree preformance testing in speedtest1.c. Add the --nodiff option to the speed-check.sh script. (check-in: 95f2d62cf3 user: drh tags: trunk) | |
| 13:59 | Updates to the sqlite3_vtab_nochange() documentation. No changes to code. (check-in: 5bd99abc10 user: drh tags: trunk) | |
|
2018-05-23
| ||
| 20:55 | Add support for "ROWS BETWEEN <expr> PRECEDING AND <expr> FOLLOWING" window frames. (check-in: 3a203660f1 user: dan tags: exp-window-functions) | |
| 17:53 | Remove a branch that is no longer used due to the fix to the sqlite_sequence schema problem, ticket [d8dc2b3a58cd5dc2918a1d4acbba4676a23ada4c] (check-in: 066742692a user: drh tags: trunk) | |
| 16:50 | Verify that the sqlite_sequence table exists and is in approximately the correct format prior to using it to process an autoincrement table. Fix for ticket [d8dc2b3a58cd5dc2918a1d4a]. (check-in: e199e859ac user: drh tags: trunk) | |
|
2018-05-22
| ||
| 20:36 | Merge latest trunk changes into this branch. (check-in: cdb68d2c64 user: dan tags: exp-window-functions) | |
| 20:35 | Add comments to window.c describing how other window frames will be implemented. (check-in: 16168146b2 user: dan tags: exp-window-functions) | |
|
2018-05-21
| ||
| 19:45 | Begin adding support for more esoteric window frames. (check-in: bc4b81d60d user: dan tags: exp-window-functions) | |
|
2018-05-19
| ||
| 14:15 | Fix minor problems on this branch. (check-in: 19c2e4b2f1 user: dan tags: exp-window-functions) | |
|
2018-05-18
| ||
| 17:58 | Add support for auxiliary columns to the rtree extension. (check-in: c6071ac99c user: drh tags: trunk) | |
| 17:17 | Merge enhancements from trunk, especially the CLI fixes. (Closed-Leaf check-in: a350040a3b user: drh tags: aux-data-in-rtree) | |
| 17:11 | In the CLI, detect and report errors on sqlite3_close(). Clear global variables prior to exit to so that valgrind can better detect resource leaks. (check-in: e3b2e0a078 user: drh tags: trunk) | |
| 16:53 | Avoid unnecessary sqlite3_finalize() operations. (check-in: 16f71032a3 user: drh tags: aux-data-in-rtree) | |
| 16:46 | Fix a prepare-statement leak. (check-in: 95fd296ffc user: drh tags: aux-data-in-rtree) | |
| 15:21 | Improved error messages. Limit the number of auxiliary columns to 100. (check-in: 059d20abd5 user: drh tags: aux-data-in-rtree) | |
| 14:24 | Improvements to integer/float comparisons on architectures that lack a "long double" type. (check-in: 5139ea62a8 user: drh tags: trunk) | |
| 14:19 | Remove incorrect NEVER() macro added by the previous check-in. (Closed-Leaf check-in: 3d66251113 user: drh tags: int-float-compare) | |
| 13:39 | Improvements to the sqlite3IntFloatCompare() routine for systems that lack the long double type. (check-in: ea6a03a89d user: drh tags: int-float-compare) | |
|
2018-05-17
| ||
| 20:04 | In the CLI with the -A command, if the file does not previously exist and its name looks like a ZIP archive name, then create it as a ZIP archive. (check-in: 33dc8fad7f user: drh tags: trunk) | |
| 19:24 | Evaluate multiple window functions in a single pass if they use the same window definition. Add xValue callbacks for other built-in aggregate functions. (check-in: c9f0f14094 user: dan tags: exp-window-functions) | |
| 14:26 | Handle multiple window-functions in a single query. (check-in: 35af0b750e user: dan tags: exp-window-functions) | |
| 14:09 | Improved error and help messages for the ".archive" command and "-A" option to the CLI. If a memory leak in --list processing. (check-in: 02541ac6f9 user: drh tags: trunk) | |
| 13:29 | Fix memory errors associated with argv in the CLI when it is compiled on Windows. (check-in: 4474d69b5c user: drh tags: trunk) | |
|
2018-05-16
| ||
| 20:58 | Start of experimental implementation of SQL window functions. Does not yet work. (check-in: 3781e52085 user: dan tags: exp-window-functions) | |
| 19:56 | Fix an issue with rtreecheck() and auxiliary data columns. (check-in: 4671513607 user: drh tags: aux-data-in-rtree) | |
| 19:07 | Do not allow auxiliary columns in the rtree to interfere with query planning. Begin adding test cases. (check-in: 9abe023e1a user: drh tags: aux-data-in-rtree) | |
| 18:18 | Fix the OOM issue mentioned in the previous check-in. (check-in: c489d8e44e user: drh tags: aux-data-in-rtree) | |
| 17:57 | Initial implementation of the ability to have auxiliary columns in an rtree virtual table that store arbitrary content. It mostly works, but there are some minor issues in OOM corner cases. (check-in: 0c87fec970 user: drh tags: aux-data-in-rtree) | |
| 15:35 | Enhance the sqlite3_str_new() interface so that it always returns a valid and non-NULL pointer even in an OOM condition. (check-in: ed5b09680f user: drh tags: trunk) | |
| 12:19 | Correct output for the fullkey column of json_each() when the total JSON input is a simple value, not an array or object. (check-in: b45b18850c user: drh tags: trunk) | |
|
2018-05-15
| ||
| 11:55 | Merge latest trunk changes into this branch. (check-in: 72f39efa9b user: dan tags: begin-concurrent-pnu) | |
| 11:45 | Merge latest trunk changes with this branch. (check-in: ae86cf60b6 user: dan tags: begin-concurrent) | |
| 11:33 | Instead of just the flags byte, include the first 8 bytes of the relevant page in an on-commit conflict log message. (check-in: 52e443eb55 user: dan tags: begin-concurrent-pnu) | |
| 11:28 | Instead of just the flags byte, include the first 8 bytes of the relevant page in an on-commit conflict log message. (check-in: e7dc03e743 user: dan tags: begin-concurrent) | |
| 09:09 | Fix a test case problem in wherelimit.test. (check-in: 3012df8b2c user: dan tags: trunk) | |
| 09:03 | Include the value of the "flags" byte of the relevant page in the log message emitted when a BEGIN CONCURRENT commit conflict is detected. (check-in: de19abb950 user: dan tags: begin-concurrent-pnu) | |
| 08:51 | Include the value of the "flags" byte of the relevant page in the log message emitted when a BEGIN CONCURRENT commit conflict is detected. (check-in: fbfa547177 user: dan tags: begin-concurrent) | |
|
2018-05-14
| ||
| 22:46 | Make more aggressive use of automatic indexes when processing materalized views and subqueries. (check-in: 172f5bd27e user: drh tags: trunk) | |
| 18:09 | The restriction on using automatic indexes for low cardinality loops only applies if the cardinality is restricted by a LIMIT clause. (Closed-Leaf check-in: 991a76bf42 user: drh tags: exp-indexed-clause) | |
| 17:12 | Experimental syntax enhancement for an "INDEXED" keyword following a FROM-clause subquery that indicates that an automatic index on that subquery is suggested. (check-in: 32b3d11050 user: drh tags: exp-indexed-clause) | |
| 15:26 | Convert the schema creation logic in the rtree extension to use the new sqlite3_str interface. (check-in: fd8b8c4196 user: drh tags: trunk) | |
| 12:23 | Fix typo in the shell.c source file. (check-in: 389dc0a901 user: mistachkin tags: trunk) | |
| 00:41 | Export the deduceDatabaseType() function the shell.c source file. (check-in: d0f35739af user: drh tags: trunk) | |
| 00:23 | Add the --append option to the ".backup" command in the CLI. (check-in: 0dfdbdee52 user: drh tags: trunk) | |
|
2018-05-12
| ||
| 23:59 | Add test cases for geopoly_overlap(). (Later:) This branch is closed and the development of the geopoly logic is moved to the [/timeline?r=rtree-geopoly|rtree-geopoly] branch. (Closed-Leaf check-in: 3920925128 user: drh tags: geojson) | |
| 23:56 | Merge changes from trunk. (check-in: 715740e302 user: drh tags: geojson) | |
| 23:56 | In the CLI, allow comment lines that begin with '#', but only in a context where a dot-command is allowed. In other words, '#' at the beginning of a line in the middle of an SQL statement is just part of the SQL. (check-in: 4ee136d6d2 user: drh tags: trunk) | |
| 23:31 | Resolve issues with floating-point round-off error in the geopoly_overlap() routine. (check-in: a3c6696f2f user: drh tags: geojson) | |
| 21:09 | Add the geopoly_svg() SQL function. (check-in: 318ba5f0c5 user: drh tags: geojson) | |
| 20:28 | Preliminary tests show geopoly_overlap() is working. (check-in: 77bb7b7d72 user: drh tags: geojson) | |
| 16:05 | An initial attempt at an overlap function in the geopoly extension. (check-in: c857976efb user: drh tags: geojson) | |
|
2018-05-11
| ||
| 19:11 | In the CLI, return non-zero if there are errors on the command-line. (check-in: 13e7300a37 user: drh tags: trunk) | |
| 16:50 | Add the geopoly_within() SQL function. (check-in: 927d52a93c user: drh tags: geojson) | |
| 15:38 | Add the geopoly_read() SQL function to the geopoly.c extension. (check-in: b37625e8e4 user: drh tags: geojson) | |
| 15:10 | Fix a typo in the help message from the ".sha3sum" command in the CLI. (check-in: dba87a2018 user: drh tags: trunk) | |
| 15:10 | Make sure the open_db() routine in the CLI does not invoke access() with a NULL filename. (check-in: 20a8c61122 user: drh tags: trunk) | |
| 14:02 | Fix a typo in the help message from the ".sha3sum" command in the CLI. (check-in: e76f676c12 user: drh tags: geojson) | |
| 14:00 | Make sure the open_db() routine in the CLI does not invoke access() with a NULL filename. (check-in: 2b8fd3b497 user: drh tags: geojson) | |
|
2018-05-09
| ||
| 16:32 | Add a test case to check that the fts5 unicode64 tokenizer is dealing with codepoints greater than 65535 correctly. (check-in: 9f7a6ae878 user: dan tags: trunk) | |
| 15:27 | The translation in and out of GeoJSON automatically adds or removes the redundant last vertex, as necessary. (check-in: 2653bedd9f user: drh tags: geojson) | |
| 15:20 | Fix the geopoly_json() SQL function so that it works. (check-in: 236588d573 user: drh tags: geojson) | |
| 15:19 | Merge from trunk the ability to use sqlite3_sql interfaces in extensions. (check-in: 5bb9e6a9f1 user: drh tags: geojson) | |
| 15:17 | Add 14 new interfaces to the loadable extension mechanism. (check-in: 0e809cdcbd user: drh tags: trunk) | |
| 15:00 | Add the geopoly_json() interface. Untested. (check-in: 25695c80a0 user: drh tags: geojson) | |
| 14:33 | Merge trunk changes, and especially the newly published sqlite3_str interface. (check-in: f3609aefe8 user: drh tags: geojson) | |
| 14:29 | Fix minor problems with the sqlite3_str interface. (check-in: 43ea8a6836 user: drh tags: trunk) | |
| 13:46 | Make the internal dynamic string interface available to extensions using the new sqlite3_str object and its associated methods. This is mostly just a renaming of internal objects and methods to use external names, through there are a few small wrapper functions. (check-in: 87f261f0cb user: drh tags: trunk) | |
| 10:11 | Fix a typo in a comment used for documentation. No code changes. (check-in: b866693e6a user: drh tags: trunk) | |
| 02:23 | Version 3.23.2 (Leaf check-in: f139f6f07d user: drh tags: release, version-3.23.2, branch-3.23) | |
|
2018-05-08
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| 23:17 | Correctly format the STAT1 and STAT4 content in the output from the ".fullschema" command in the CLI. Fix for ticket [e63a34a0045832dc850367552]. (check-in: 0c3f128fd7 user: drh tags: trunk) | |
| 22:47 | Experiments with routines for processing GeoJSON. (check-in: d22fbff2a3 user: drh tags: geojson) | |
| 13:32 | Merge changes from trunk, especially the activation of the cell-overwrite optimization for indexes and WITHOUT ROWID tables. (check-in: a016144b0e user: drh tags: apple-osx) | |
| 13:03 | Fix a harmless compiler warning in fuzzcheck. Add new OSSFuzz test cases to the test case library. (check-in: d2619746cb user: drh tags: trunk) | |
| 12:49 | Fuzz test cases for UPSERT. (check-in: fd11fbd218 user: drh tags: trunk) | |
|
2018-05-07
| ||
| 18:41 | Activate the cell-overwrite optimization for index b-trees. (check-in: a68697d10e user: drh tags: trunk) | |
| 17:27 | Improved comments on the cell-overwrite optimization code. (check-in: a4fe966da2 user: drh tags: trunk) | |
| 13:01 | Merge enhancements from trunk, and especially the cell-overwrite optimization. (check-in: cb3aa77802 user: drh tags: apple-osx) | |
| 11:48 | On an UPDATE, try to overwrite an existing btree cell with the modified content, if the old and new cell are the same size. Use memcmp() first to avoid dirtying pages that are unchanged. (check-in: 5887d8beb5 user: drh tags: trunk) | |
| 11:37 | Fix harmless compiler warnings associated with the new EXPLAIN QUERY PLAN logic. (check-in: 374d8e2644 user: drh tags: trunk) | |
| 11:29 | Fix harmless compiler warnings in the cell-overwrite logic. (Closed-Leaf check-in: 3e11dc3183 user: drh tags: cell-overwrite-prototype) | |
| 02:50 | Backout change [05fee1a21ea398f1e4d6f1cf3] because it does not take into account the LD_LIBRARY_PATH environment variable used by dl_open(). (check-in: b348d1193a user: drh tags: trunk) | |
|
2018-05-05
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| 16:50 | In an ORDER BY LIMIT, make sure the ORDER BY expression evaluator does not try to reuse values from the result set if the result set has not yet be computed. This fixes a bug in the recent deferred-row loading optimization, check-in [c381f0ea57002a264fd958b28e]. OSSFuzz discovered the problem. (check-in: 5d61e75f32 user: drh tags: trunk) | |
| 01:23 | Fix a slightly incorrect corruption detection branch in the btree logic. (check-in: 9191ff670c user: drh tags: trunk) | |
|
2018-05-04
| ||
| 20:00 | Bring the code that changes the owner of WAL and rollback files when running as root into alignment with trunk. (check-in: 180516bf7b user: drh tags: apple-osx) | |
| 19:33 | Merge recent enhancements from trunk. (check-in: e17bca2cdb user: drh tags: apple-osx) | |
| 19:18 | Merge enhancements from trunk. (check-in: 9650f71b82 user: drh tags: cell-overwrite-prototype) | |
| 18:32 | Fix requirements marks. No code changes. (check-in: 7fdad122a2 user: drh tags: trunk) | |
| 04:49 | For the amalgamation-tarball, enable FTS5 and JSON1 by default and provide a new --enable-debug option that actives debugging facilities. (check-in: 03edecaf9d user: drh tags: trunk) | |
| 00:39 | Make a separate limb in the EXPLAIN QUERY PLAN output for the various lines associated with the OR-optimization. (check-in: 75ac7b4e4f user: drh tags: trunk) | |
|
2018-05-03
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| 23:20 | In ORDER BY LIMIT queries, try to evaluate the ORDER BY terms first, and it it becomes clear that the row will not come in under the LIMIT, then skip evaluation of the other columns. (check-in: c381f0ea57 user: drh tags: trunk) | |
| 22:52 | Fix a branch that has become unreachable due to recent enhancements. (check-in: 81ab5e0d10 user: drh tags: trunk) | |
| 21:51 | Improved security for VACUUM. This check-in combines the fixes of [ab0d99d0b5ede] and [27754b74ddf646] in a way that is less likely to to be broken by future changes. (check-in: 260fc69653 user: drh tags: trunk) | |
| 19:56 | Overhaul of EXPLAIN QUERY PLAN. The output is now in the form of a tree. More details of the query plan are shown, and what is shown is truer to what actually happens. (check-in: ff01bbdabc user: drh tags: trunk) | |
| 19:47 | Optimizations to the new EQP framework. (Closed-Leaf check-in: 956fef361a user: drh tags: rework-EQP) | |
| 16:56 | Fix various error handling conditions on the cell overwrite optimization. Fix a test case so that it works with the new optimization. (check-in: f89b54f414 user: drh tags: cell-overwrite-prototype) | |
| 14:07 | The BtCursor.info fields are only valid if info.nSize!=0. (check-in: 54c537eead user: drh tags: cell-overwrite-prototype) | |
| 13:56 | Add more corruption checking to the cell overwrite logic. (check-in: 58d14afe1e user: drh tags: cell-overwrite-prototype) | |
| 12:57 | Bug fixes in the overwrite optimization. (check-in: 0cb6cd2a6a user: drh tags: cell-overwrite-prototype) | |
| 03:59 | The sqlite3BtreeInsert() routine tries to overwrite an existing cell with modified content if the new content is the same size. Pages are only dirtied if they change. This prototype works some, but still has issues. (check-in: 489451b378 user: drh tags: cell-overwrite-prototype) | |
| 01:37 | Enhance EXPLAIN QUERY PLAN to report the generation of constant rows using VALUES or just a SELECT without FROM. (check-in: c75eee69fa user: drh tags: rework-EQP) | |
|
2018-05-02
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| 19:42 | More test case updates. Tests are all running now. (check-in: dab5e52948 user: drh tags: rework-EQP) | |
| 18:00 | Fix test cases so that they work with the new EXPLAIN QUERY PLAN output format. Only some of the cases have been fixed. This is an incremental check-in. (check-in: 5f0e803e33 user: drh tags: rework-EQP) | |
| 16:13 | Improved EQP output for recursive CTEs and multi-value VALUES clauses. (check-in: f2f525548c user: drh tags: rework-EQP) | |
| 15:00 | Prevent VACUUM from running any commands in sqlite_master.sql other than CREATE statements. That is all that should be there anyhow. This fixes a problem discovered by OSSFuzz. Test cases in TH3. (check-in: ab0d99d0b5 user: drh tags: trunk) | |
| 14:24 | Fix a dangling-else problem that was causing recursive CTEs to malfunction. Begin fixing test cases to work with the new EQP output. (check-in: 82ca44b82f user: drh tags: rework-EQP) | |
| 08:12 | Fix a problem in the xBestIndex method of the closure extension causing it to allocate non-contiguous argvIndex values in some cases (an "xBestIndex malfunction" error). (check-in: 0c67150749 user: dan tags: trunk) | |
| 03:03 | Add sqlite3_win32_set_directory8() and sqlite3_win32_set_directory16() functions. (check-in: 6cf0f4e2b4 user: mistachkin tags: branch-3.23) | |
| 03:01 | Add sqlite3_win32_set_directory8() and sqlite3_win32_set_directory16() functions. (check-in: 22089ea2bb user: mistachkin tags: trunk) | |
| 02:22 | Improvements to the EQP display for compound select statements. (check-in: 699a77e479 user: drh tags: rework-EQP) | |
| 00:33 | Begin reengineering the EXPLAIN QUERY PLAN function to provide more intuitive output. (check-in: 70b48a7972 user: drh tags: rework-EQP) | |
|
2018-05-01
| ||
| 18:39 | The SQLITE_ALLOW_SQLITE_MASTER_INDEX compile-time option allows a CREATE INDEX statement against the sqlite_master table. Once created, the index works, and is usable by legacy instances of SQLite. (check-in: 853f316359 user: drh tags: trunk) | |
| 01:18 | The ".selecttrace 0x4000" command causes the AST to be output to stdout as a table with four columns. (Leaf check-in: 2a75e631ee user: drh tags: ast-trace-demo) | |
|
2018-04-30
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| 19:32 | Defer loading result column values into registers on an ORDER BY LIMIT until we know that the LIMIT does not exclude the current row. (Closed-Leaf check-in: ce4ef46058 user: drh tags: faster-order-by-limit) | |
|
2018-04-28
| ||
| 19:08 | Test cases added for SQLITE_DBCONFIG_RESET_DATABASE. (check-in: 08665a9e2e user: drh tags: trunk) | |
| 18:20 | Fix an RBU problem causing spurious SQLITE_CONSTRAINT errors when restarting an RBU update in which more than one source table writes to a single target database table. (check-in: 564ae8297d user: dan tags: trunk) | |
| 13:21 | Add the SQLITE_DBCONFIG_RESET_DATABASE control for resetting a corrupt database file without closing any database connections. Added the ".dbconfig" command to the CLI. (check-in: a200a49ede user: drh tags: trunk) | |
| 12:43 | Add the SQLITE_DBCONFIG_RESET_DATABASE control as a replacement for the reset_database pragma. Resetting the database should be hard enough to do that it cannot be done by accident. (Leaf check-in: ff836cb8b0 user: drh tags: reset-database) | |
| 11:22 | Merge updates from trunk. (check-in: 94877e495c user: drh tags: reset-database) | |
| 04:16 | Prevent deep recursions on nested COLLATE operators. (check-in: 6e098ee415 user: drh tags: trunk) | |
| 04:10 | Fix compiler warnings in FTS3. (check-in: de508e831a user: drh tags: trunk) | |
| 01:48 | Document and expose sqlite3_win32_set_directory() function for use on Win32. (check-in: f677065aab user: mistachkin tags: branch-3.23) | |
| 01:46 | Document and expose sqlite3_win32_set_directory() function for use on Win32. (check-in: 7626b59340 user: mistachkin tags: trunk) | |
| 01:44 | Add comments about the intended use of the sqlite3_data_directory variable as it pertains to the sqlite3_win32_set_directory function. (Closed-Leaf check-in: d11c419756 user: mistachkin tags: win32dir) | |
| 01:37 | Bump the version number to 3.23.2. (check-in: 242dc910b0 user: drh tags: branch-3.23) | |
| 01:27 | Add the "PRAGMA reset_database=ON|OFF" command. When on, it causes the database to appear to be empty, causing the next transaction to reset it to an empty database. (check-in: 02e1a13c1f user: drh tags: reset-database) | |
|
2018-04-27
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| 22:42 | Document and expose sqlite3_win32_set_directory() function for use on Win32. (check-in: cbce7180ee user: mistachkin tags: win32dir) | |
| 20:49 | Better comments on the bindvtab.c implementation. All the two-argument version of the .set command. All bindings from .set and -D are still string. (Leaf check-in: 7b2a65a654 user: drh tags: shell-bindings) | |
| 18:05 | Update test script fts3expr4.test so that it always creates fts3 tokenizers in the "en_US" locality. (check-in: 576a8f69ae user: dan tags: trunk) | |
| 17:39 | Add the ability to use bind parameters in the CLI. The new ".set KEY=VALUE" dot-command works to set bindings. Or use the "-Dkey=value" command-line option. Or use the built-in shell_bindings(k,v) virtual table to set, delete, or changing bindings. (check-in: 1f2944d1d6 user: drh tags: shell-bindings) | |
| 16:35 | Fix a test script error causing tests to fail in soak.test. (check-in: 462b52b121 user: dan tags: trunk) | |
| 15:17 | Enhance the comments in the templatevtab.c implementation. (check-in: 05f6278a02 user: drh tags: trunk) | |
|
2018-04-26
| ||
| 18:34 | The previous fix for ticket [d85fffd6ffe856092ed8da] in check-in [0a514e62ad1ebe5c12da8dae] did not completely address the probably in that it only worked for cases where the OP_SCopy that loaded the register was the last instruction in the sequence for the expression, which is not necessarily the case for expressions like CASE...END. This revision prevents the registered that will be recomputed from being cached in the first place. (check-in: 9fd0faf517 user: drh tags: trunk) | |
| 18:01 | Merge latest changes from trunk. Including the "ORDER BY ... LIMIT" optimization. (check-in: 83a4c9f088 user: dan tags: begin-concurrent-pnu) | |
| 17:54 | Merge latest changes from trunk. Including the "ORDER BY ... LIMIT" optimization. (check-in: d8ae7ba083 user: dan tags: begin-concurrent) | |
| 17:43 | When processing an "ORDER BY ... LIMIT" that does not use an index, check whether or not a record may appear in the final result set before adding it to the temp b-tree used for sorting. (check-in: 0fcfc36ceb user: dan tags: trunk) | |
| 16:13 | When processing an "ORDER BY ... LIMIT" that does not use an index, check whether or not a record may appear in the final result set before adding it to the sorter. (Closed-Leaf check-in: 71bf91c218 user: dan tags: sorter-limit-opt) | |
| 15:50 | Ensure that new.* values of an UPDATE do not get clobbered after the BEFORE triggers run when unmodified columns of the row being updated are reloaded. Fix for ticket [d85fffd6ffe856092ed8da] (check-in: 0a514e62ad user: drh tags: trunk) | |
| 15:04 | Clarification of the behavior of a BEFORE UPDATE trigger when the trigger changes the values of some of the columns used to compute new columns in the UPDATE. (check-in: 7bb23c2a3d user: drh tags: trunk) | |
| 12:27 | Improved VDBE comment on the OP_Param opcode. No substantial changes. (check-in: 368c14da86 user: drh tags: trunk) | |
| 08:56 | Update the "fuzz_malloc.test" script to print SQL statements in which OOM handling problems are found to stdout. (check-in: a956363cf6 user: dan tags: trunk) | |
|
2018-04-25
| ||
| 19:02 | Add new interfaces for accessing the list of SQL keywords: sqlite3_keyword_count(), sqlite3_keyword_name(), sqlite3_keyword_check(). (check-in: 7dd34e3776 user: drh tags: trunk) | |
| 17:10 | Add the new DO and NOTHING keywords to the keyword lists maintained by various extensions and auxiliary programs. (check-in: 77a98a0781 user: drh tags: trunk) | |
| 13:27 | Add the new SQLITE_SHELL_INIT_PROC compile-time entry point to the CLI. This is needed to work around the tighter sqlite3_config() constraints now in the CLI. (check-in: 3bcdbccf53 user: drh tags: trunk) | |
| 12:01 | Avoid many unnecessary calls to sqlite3ReadSchema() and sqlite3Init() when the schema is known to be valid already. (check-in: 58cf812fd8 user: drh tags: trunk) | |
| 10:30 | Add an assert() to ensure that schema mutexes are held prior to accessing the DB_SchemaLoaded flag inside of sqlite3Init(). (check-in: d8b46290bb user: drh tags: trunk) | |
|
2018-04-24
| ||
| 19:22 | Update this branch with latest changes from trunk. (check-in: 2d8d13e4a1 user: dan tags: begin-concurrent-pnu) | |
| 19:21 | Merge latest trunk changes into this branch. (check-in: b27bd799ea user: dan tags: begin-concurrent) | |
| 18:59 | Remove a recently added NEVER() macro from a branch that can be taken in obscure circumstances. (check-in: 2aa210030a user: dan tags: trunk) | |
| 18:53 | Fix a problem with processing "LEFT JOIN tbl ON tbl.a = ? AND (tbl.b=? OR tbl.c=?)" in cases where there are indexes on both tbl(a, b) and tbl(a, c). (check-in: ce35e39c5c user: dan tags: trunk) | |
| 17:34 | Do not attempt to use terms from the WHERE clause to drive indexes on the right table of a LEFT JOIN. Fix for ticket [4ba5abf65c5b0f9a96a7a40cd18b] (check-in: aeb694e3f7 user: drh tags: trunk) | |
| 16:51 | Update the expert extension test cases to account for the fact that EXPLAIN QUERY PLAN now shows the start of each trigger in its output. (check-in: 8acb42f489 user: drh tags: trunk) | |
| 16:41 | All the OR optimization to proceed even if the OR is also converted into an IN operator. (check-in: e252c6540d user: drh tags: trunk) | |
| 14:18 | Add a hyperlink to the ticket on the code comment for the fix to ticket [7fa8049685b50b5aeb0c2]. (check-in: 45247c7f29 user: drh tags: trunk) | |
| 14:05 | Do not attempt to read values from indexes-on-expressions if the index is on the RHS of a LEFT JOIN. This won't work if the index cursor points at a null-row. Fix for [7fa80496]. (check-in: b8ef967ab1 user: dan tags: trunk) | |
| 13:07 | Enhance the CLI to render EXPLAIN QUERY PLAN using an ASCII-art graph. This works with ".eqp" modes and when the query begins with exactly "EXPLAIN QUERY PLAN". To see the original output format, add extra space characters in between words of the initial "EXPLAIN QUERY PLAN". (check-in: f53716ee2a user: drh tags: trunk) | |
| 10:57 | Fix a memory leak following failure to open an external CSV file in the csv.c extension. (check-in: 526ee07d19 user: drh tags: trunk) | |
| 01:10 | In EXPLAIN QUERY PLAN output, do not show an EXECUTE LIST SUBQUERY line for IN operators where the RHS is a list and not a subquery, since in that case there is no SUBQUERY to execute. (check-in: 8bc0207abd user: drh tags: trunk) | |
| 00:08 | Fix to check-in [ca34c2dd20ee071e] - avoid a NULL pointer dereference following an OOM. (check-in: c7e6e848fa user: drh tags: trunk) | |
|
2018-04-23
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| 20:38 | Fix a problem in sqlite3ExprCompare() associated with UPSERT. (check-in: 67d0b2c152 user: drh tags: trunk) | |
| 20:04 | Fix a formatting issue in the TreeView output for bare expression lists. (check-in: a635681781 user: drh tags: trunk) | |
| 18:38 | Add the ".imposter off" variant of the ".imposter" dot-command in the CLI. (check-in: d3dad06ff1 user: drh tags: trunk) | |
| 17:43 | The ".selecttrace 0x2000" command causes just the top-level parse tree to be displayed, after all transformations, and showing the EQP iSelectId at each level. (check-in: ca34c2dd20 user: drh tags: trunk) | |
| 17:18 | The ".selecttrace 4" command now shows only a single parse tree after name resolution. (check-in: 5682146e8a user: drh tags: trunk) | |
| 17:09 | Do not restore the iSelectId value until after the last SELECTTRACE when debugging Select processing. (check-in: 8088d8cac3 user: drh tags: trunk) | |
| 17:02 | In the ".selecttrace" output, include the EXPLAIN QUERY PLAN iSelectId as part of each Select identifier. (check-in: 5c6339f955 user: drh tags: trunk) | |
| 13:28 | Ensure that there are no bind-parameters or incorrect schema references in the UPSERT portions of an INSERT within a TRIGGER. (check-in: d47a6bdda0 user: drh tags: trunk) | |
| 00:25 | Fix an unreachable branch associated with stack overflow in the LEMON-generated parser. (check-in: e3064ba3b6 user: drh tags: trunk) | |
|
2018-04-21
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| 22:40 | Performance improvements on the main loop of the LEMON-generated parser. (check-in: fec1ebadeb user: drh tags: trunk) | |
| 20:24 | Enhance LEMON to track which symbols actually carry semantic content. Output the list of symbols that do not carry content at the end of the report, but do not (yet) do anything else with the information. (check-in: dcf2bafc15 user: drh tags: trunk) | |
| 14:11 | A few more tests for upsert. (check-in: b78005b6d4 user: dan tags: trunk) | |
| 13:51 | Add the %extra_context directive to lemon, as an alternative to %extra_argument. Use this to improve the performance of the parser. (check-in: be47a6f526 user: drh tags: trunk) | |
| 03:06 | Fix UPSERT so that it plays nicely with AUTOINCREMENT. (check-in: 359725ab36 user: drh tags: trunk) | |
|
2018-04-20
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| 20:47 | Add the -dDIRECTORY command-line option to LEMON. (check-in: 9cd20475ff user: drh tags: trunk) | |
| 20:37 | Enhance the "rbu" command line utility a bit. (check-in: 61eb516f83 user: dan tags: trunk) | |
| 20:09 | Fix a harmless compiler warning. (check-in: d2ab24f59d user: drh tags: trunk) | |
| 19:46 | Avoid the use of statement journals on DELETEs of a single row without triggers or foreign keys. (check-in: 20bf580080 user: drh tags: trunk) | |
| 19:32 | Avoid opening a statement journal on single-row UPDATEs without triggers or FK constraints. (check-in: 2772404b8c user: drh tags: trunk) | |
| 18:01 | Fix a VDBE comment on upsert. Provide an error message when upsert detects index corruption. (check-in: 279c48f606 user: drh tags: trunk) | |
| 17:50 | Add tests for name resolution in ON CONFLICT clauses. (check-in: cf253584ec user: dan tags: trunk) | |
| 17:02 | Avoid unnecessary cursor seeking when performing an UPSERT. (check-in: 693a3dcbdd user: drh tags: trunk) | |
| 16:49 | Improved VDBE comment on UPSERT code. (Closed-Leaf check-in: 131ed95e14 user: drh tags: upsert-opt2) | |
| 16:27 | Minor simplification of the previous checkin. (check-in: d1906689ab user: drh tags: upsert-opt2) | |
| 15:56 | Avoid unnecessary cursor seeks during upsert processing. (check-in: 7c4b6d5475 user: drh tags: upsert-opt2) | |
| 15:34 | Add test cases for UPSERT. And a fix for a "REPLACE INTO ... ON CONFLICT" statement where the new row conflicts with both the IPK and the ON CONFLICT indexes. (check-in: d8eb9f8d9b user: dan tags: trunk) | |
| 13:18 | Enhance UPSERT so that the UPDATE uses the same set of cursors as the INSERT. (check-in: c37f39d18d user: drh tags: trunk) | |
| 00:40 | Minor simplification of the cursor allocation logic for update. (check-in: fdf71be658 user: drh tags: trunk) | |
|
2018-04-19
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| 23:52 | Fix the handling of "PRAGMA count_changes=ON" with UPSERT. Also improved the implementation of count_changes in other places, without changing the behavior. (check-in: c6f71115eb user: drh tags: trunk) | |
| 21:29 | Minor simplification to the upsert logic. (check-in: e657c1d60f user: drh tags: trunk) | |
| 20:18 | Avoid unnecessary OP_Goto instructions on an upsert of a table that only has a single secondary index. (Leaf check-in: 97dd21ab90 user: drh tags: upsert-opt) | |
| 20:06 | Modify a test case in zipfile2.test to take into account that with some platform/file-system combinations it is possible to fopen() and fread() (but not fwrite()) a directory. (check-in: 893e6089c8 user: dan tags: trunk) | |
| 16:52 | Add the --upsert option to the wordcount test program. (check-in: ee1e750baa user: drh tags: trunk) | |
| 16:14 | Add the ext/misc/templatevtab.c template for virtual tables. This is a work-in-progress as it still needs improvements to the comments in order to be useful as a template. (check-in: 22358fb549 user: drh tags: trunk) | |
| 13:52 | Fix a problem in the new upsert implemention, discovered by OSSFuzz. (check-in: b6d5ea59fe user: drh tags: trunk) | |
| 11:45 | Fix the table name aliasing on INSERT so that it occurs before the column list rather than afterwards, just as it does for PostgreSQL. Add table name aliasing to UPDATE and DELETE. (check-in: 861a2e2a48 user: drh tags: trunk) | |
|
2018-04-18
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| 19:56 | Add the "sorter-reference" optimization, allowing SQLite to be configured so that some required values may be loaded from the database after external sorting occurs for SELECT statements with ORDER BY clauses that are not satisfied by database indexes. (check-in: ef74090a40 user: dan tags: trunk) | |
| 19:45 | Minor changes to test script upsert4.test. (check-in: 0cb83c84d1 user: dan tags: trunk) | |
| 19:08 | Avoid a NULL-pointer deref following OOM. (Closed-Leaf check-in: 413015c029 user: drh tags: sorter-reference) | |
| 18:19 | Fix a test case inside distinct.test. (check-in: 61cb8a391a user: drh tags: trunk) | |
| 18:18 | Improved matching of COLLATE clauses within the ON CONFLICT conflict-target. (check-in: 8f4376e52b user: drh tags: trunk) | |
| 17:56 | Add extra test cases for UPSERT. (check-in: 7ea08d0750 user: dan tags: trunk) | |
| 17:52 | Fix a problem in the sqlite3ExprCompare() function that caused two dissimilar expressions to match if they have the same "COLLATE name" at the outer layer. (check-in: fb16348a5b user: drh tags: trunk) | |
| 16:03 | Add support for PostgreSQL UPSERT syntax and functionality. (check-in: fba24aec23 user: drh tags: trunk) | |
| 15:33 | Fix the build for SQLITE_OMIT_UPSERT (Closed-Leaf check-in: 3295651917 user: drh tags: upsert) | |
| 15:21 | Add the --sorterref N option to the CLI. (check-in: 902a40897f user: drh tags: sorter-reference) | |
| 14:48 | Omit some code not used without SQLITE_ENABLE_SORTER_REFERENCES. Improvements to comments used for documentation. (check-in: f3596ab9eb user: drh tags: sorter-reference) | |
| 14:04 | Remove an unused local variable. (check-in: 9afeb0c88b user: drh tags: sorter-reference) | |
| 11:35 | Enhance ALTER TABLE ADD COLUMN to support "DEFAULT true" and "DEFAULT false". (check-in: 594ebc6955 user: drh tags: trunk) | |
| 10:44 | Add checks to the CLI that issue a warning if SQLite gets initialized prior to the last sqlite3_config() call. (check-in: 40b1173477 user: drh tags: trunk) | |
| 09:16 | Fix a problem in the shell preventing it from working with SQLITE_OMIT_AUTOINIT builds. (check-in: 89209000a2 user: dan tags: trunk) | |
| 01:34 | Add new testcase() macros and fix a bug that was revealed when trying to cover all the new test cases. (check-in: 266a99f7c0 user: drh tags: upsert) | |
|
2018-04-17
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| 21:59 | Remove unreachable branches. 100% MC/DC in TH3 now. (check-in: 558865d5c3 user: drh tags: upsert) | |
| 20:09 | Added a comment on the assert() added to the previous check-in. (check-in: 542547c1ce user: drh tags: upsert) | |
| 20:06 | Fixes to the logic for constraint check reordering during upsert. Improved comments on constraint check bytecode. Add an assert that prevents the same label from being resolved more than once. (check-in: 1ddbb0ff55 user: drh tags: upsert) | |
| 19:29 | During PRAGMA vdbe_addoptrace=ON, show calls to sqlite3VdbeResolveLabel() in the debugging output. (check-in: 9ff07a06ce user: drh tags: upsert) | |
| 18:50 | TK_REGISTER expressions nodes are probably not constant. Make sure sqlite3ExprIsConstant() knows this. (check-in: f3d91cad92 user: drh tags: upsert) | |
| 18:18 | Simplification to the upsert logic. (check-in: f36d07a5b2 user: drh tags: upsert) | |
| 18:16 | Add some more simple test cases for UPSERT. And a minor fix. (check-in: 27cd3b2fb2 user: dan tags: upsert) | |
| 16:16 | New test cases for upsert. (check-in: 907b5a37c5 user: drh tags: upsert) | |
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2018-04-16
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| 21:12 | Add SQLITE_CONFIG_SORTERREF_SIZE configuration option. (check-in: b25a7bb769 user: dan tags: sorter-reference) | |
| 14:36 | Merge the Lemon enhancement from trunk, resulting in smaller parser tables. (check-in: 641f41722c user: drh tags: upsert) | |
| 14:31 | Lemon enhancements: (1) Do not allocate space for the 'error' non-terminal if it is not used. (2) Fix an off-by-one problem so that 'unsigned char' can be used for symbol numbers if the number of symbols is 256. (check-in: 3b7801acff user: drh tags: trunk) | |
| 13:26 | Remove the MySQL upsert syntax. As an optional alias to the insert table name in order to finish out PostgreSQL upsert syntax emulation. (check-in: 810d9f63be user: drh tags: upsert) | |
| 13:00 | Add support for the "excluded.*" names in the UPDATE clause of an upsert. (check-in: 0203f34faa user: drh tags: upsert) | |
| 10:47 | Merge changes from trunk. (check-in: 54d96772e7 user: drh tags: upsert) | |
| 10:41 | Increase the version number to 3.24.0 (check-in: f94528e1c7 user: drh tags: trunk) | |
| 10:34 | Reduce the size of the NameContext object by grouping seldom-used fields into a union. (check-in: dba3095fee user: drh tags: trunk) | |
|
2018-04-14
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| 22:35 | Get upsert working on WITHOUT ROWID tables. (check-in: d3c53fd317 user: drh tags: upsert) | |
| 20:24 | Make sure constraint checks occur in the correct order, even in the presence of upserts. (check-in: 07fb30c3de user: drh tags: upsert) | |
| 18:46 | Experimental change to "SELECT * FROM ... ORDER BY" processing to load some column values from the db after sorting. (check-in: 9719cb46bb user: dan tags: sorter-reference) | |
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2018-04-13
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| 21:55 | First cut at logic to perform DO UPDATE for rowid tables. (check-in: a9080bc8b8 user: drh tags: upsert) | |
| 18:59 | Add infrastructure for doing an UPDATE as part of an UPSERT. Still no actual UPDATE code, however. (check-in: 6d3017f92b user: drh tags: upsert) | |
| 16:29 | Merge the preupdate hook change from trunk. (check-in: 7353caabb3 user: drh tags: upsert) | |
| 16:23 | Remove an always-true branch from the preupdate hook logic. (check-in: 0ab4518811 user: drh tags: trunk) | |
| 15:14 | Get the ON CONFLICT DO NOTHING form of upsert working by mapping it into INSERT OR IGNORE. (check-in: d07f05e98b user: drh tags: upsert) | |
| 14:27 | Get the conflict-target clause parsing working correctly, with test cases. This change involves an enhancement to sqlite3ExprCompare() which needs to be reviewed on trunk prior to merging. (check-in: 5bf7042562 user: drh tags: upsert) | |
| 13:44 | Improved conflict-target matching logic. (check-in: 98d32ba661 user: drh tags: upsert) | |
| 13:06 | Back off of the extended upsert syntax that allows multiple ON CONFLICT clauses. The syntax now is exactly as in PostgreSQL and MySQL. Add support for WHERE clauses on the conflict-target phrase, for partial indexes. (check-in: 2c1b1987d8 user: drh tags: upsert) | |
| 01:15 | Begin adding upsert logic. This is an incremental check-in. (check-in: 8096964340 user: drh tags: upsert) | |
|
2018-04-12
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| 21:42 | Break out the upsert code into a separate source file. (check-in: 389806b05f user: drh tags: upsert) | |
| 20:21 | Fix another typo in a comment. (check-in: 046bb6d258 user: drh tags: upsert) | |
| 19:51 | Simple comment clarification. No code or logic changes. (check-in: a26f9c9f89 user: drh tags: upsert) | |
| 17:28 | Extend the upsert syntax to allow a WHERE clause on the UPDATE. (check-in: e4396c540a user: drh tags: upsert) | |
| 15:43 | Update the upsert parsing so that it accepts conflict-target labels using the PostgreSQL syntax, and also accepts the MySQL "ON DUPLICATE KEY" syntax. (check-in: c48f64d8ae user: drh tags: upsert) | |
| 13:15 | Add the Upsert object for holding upsert clause information. (check-in: d83eaed539 user: drh tags: upsert) | |
| 12:25 | Merge changes from trunk. (check-in: 9f6f11805e user: drh tags: upsert) | |
|
2018-04-11
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| 17:10 | Help the parser run faster by avoiding the "explain ::= ." production. (check-in: d7ec7b5970 user: drh tags: trunk) | |
| 16:04 | Prohibit bound parameters in the arguments to table-valued functions within a trigger. Problem discovered by OSSFuzz. (check-in: b717820915 user: drh tags: trunk) | |
| 14:11 | Minor simplification to internal function generateSortTail(). (check-in: f32cdb41ca user: dan tags: trunk) | |
|
2018-04-10
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| 18:56 | Include the 'sqlite3rebaser_' APIs in the Windows '.def' file. (check-in: 56e4965f7a user: mistachkin tags: trunk) | |
| 18:05 | Merge all version 3.23.1 changes and enhancements from trunk. (check-in: e20fcb5159 user: drh tags: apple-osx) | |
| 17:39 | Version 3.23.1 (check-in: 4bb2294022 user: drh tags: trunk, release, version-3.23.1) | |
| 15:31 | Fix a problem causing the LEFT JOIN strength reduction optimization to be incorrectly applied in some cases where the WHERE clause of the query contains a filter expression of the form "lhs.x IS NOT ?". (check-in: 1fdaf2c344 user: dan tags: trunk) | |
| 14:29 | When testing, avoid injecting an OOM fault into a file-control call made by SQLite on an unopened file-descriptor. (check-in: 9c1a5eba3e user: dan tags: trunk) | |
| 12:33 | Increase the version number to 3.23.1. (check-in: 9488c87b54 user: drh tags: trunk) | |
| 12:10 | Fix a problem causing the LEFT JOIN strength reduction optimization to be incorrectly applied in some cases where the WHERE clause of the query contains a filter expression of the form NOT(x AND y). Ticket [1e39b966]. (check-in: 38d319c153 user: dan tags: trunk) | |
| 10:37 | Remove an unnecessary SQLITE_UNTESTABLE compile-time conditional from the command-line shell. (check-in: 80b75a34a2 user: drh tags: trunk) | |
| 00:53 | Update the top-level README.md file to point to the whynotgit.html document. Put it on the correct branch, this time. (check-in: a52e3cddea user: drh tags: trunk) | |
| 00:30 | Update the top-level README.md file to point to the whynotget.html document. (check-in: 7dfd4543da user: drh tags: upsert) | |