/ Timeline
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

200 most recent check-ins using file src/printf.c version 7f6f3cba8e

2019-05-07
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)
2018-09-29
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)
2018-09-13
13:17
Fix a requirement mark on a test script. No changes to code. (check-in: 628d5c0aa0 user: drh tags: trunk)
2018-09-12
20:32
Fix an assert() in os_unix.c that is not true when using RBU. (check-in: 028ed8618a user: dan tags: trunk)
15:51
Restrict the scope of internal-use functions in alter.c. (check-in: 4396914f8e user: drh tags: trunk)
14:28
Improvements to the documentation for SQLITE_FCNTL_DATA_VERSION. No changes to code. (check-in: 2783762433 user: drh tags: trunk)
08:51
Fix an invalid pointer comparison triggered by renaming a table column when there are views with explicit column names in the schema. (check-in: 572de7e4e3 user: dan tags: trunk)
01:05
Fix some harmless compiler warnings seen with MSVC. (check-in: 78862252da user: mistachkin tags: trunk)
00:48
For MSVC, migrate some commonly used shell compilation options to the library. (check-in: 68a71e5f4e user: mistachkin tags: trunk)
00:21
Fix a harmless compiler warning that arose from the ENABLE_CURSOR_HINTS fix of check-in [0af18674ca5b34e67e] (check-in: f578e62ae6 user: drh tags: trunk)
2018-09-11
19:05
Do not do the byte-by-byte modifications in the resetdb.test script if the reserved-byte flag in the DB header is non-zero, because in that case the bytes will be in the wrong place and the test won't work. (check-in: 0af18674ca user: drh tags: trunk)
13:38
Fix a problem causing ENABLE_CURSOR_HINTS builds to segfault. (check-in: e7033104fa user: dan tags: trunk)
2018-09-10
19:34
Fix a test script issue in fts3ao.test. (check-in: 74c381b573 user: dan tags: trunk)
19:27
Fix a minor problem causing an incorrect cursor-hint to be generated in some cases. (check-in: d879c47d7d user: dan tags: trunk)
17:21
Add the ability for loadable extensions to access the new sqlite3_create_window_function() interface. (check-in: 3def6d8ef1 user: drh tags: trunk)
16:38
Fix a broken assert() in fts3.c. (check-in: 564fa75195 user: dan tags: trunk)
14:43
New testcase() macros on virtual table xBestIndex logic. (check-in: 3bbd9c5f2f user: drh tags: trunk)
12:40
Fix the LIKE optimization so that it is disabled when the LHS of the expression does not have TEXT affinity and the RHS is the pattern '/%' or the RHS begins with the escape character. Fix for ticket [c94369cae9b561b1f996d0054b]. (check-in: f191431d63 user: drh tags: trunk)
12:17
Fix a problem with processing a "vtab.col IS NULL" expression within the WHERE clause of a query when "vtab" is a virtual table on the rhs of a LEFT JOIN. (check-in: 83da4d4104 user: dan tags: trunk)
2018-09-08
20:29
Fix an unreachable branch in the new sqlite3WhereOrderByLimitOptLabel() function of the query planner. (check-in: 5a954533ed user: drh tags: trunk)
20:09
Fix multiple issues with the ORDER BY LIMIT optimization. This is the proposed resolution to ticket [9936b2fa443fec03ff25]. (check-in: 206720129e user: drh tags: trunk)
16:55
Add a missing call to free() in Lemon. (check-in: 8b4cf33aaf user: mistachkin tags: trunk)
16:53
Fix typo in the Win32-specific code for the fileio extension. (check-in: e812e5d59a user: mistachkin tags: trunk)
2018-09-07
19:12
Remove a faulty ALWAYS() macro added by check-in [8fa254aa6329bdd0]. (check-in: fc47316e9b user: drh tags: trunk)
18:56
Add extra test case to altertab.test. (check-in: 64c3ee3c25 user: dan tags: trunk)
18:52
Add assert() and ALWAYS() to identify two unreachable branches. (check-in: 8fa254aa63 user: drh tags: trunk)
15:50
Fix a problem with renaming a non-temp table that has at least one temp trigger and shares its name with a temp table. (check-in: ceb60bd7e5 user: dan tags: trunk)
11:51
Minor fixes for problems revealed by releasetest.tcl. (check-in: 1a8aedc337 user: dan tags: trunk)
11:08
Fix an uninitialized variable in the OP_ParseSchema opcode that comes up only if the schema is corrupt. (check-in: 725808d4c5 user: drh tags: trunk)
2018-09-06
20:33
In all.test, do not attempt to run the RBU tests in non-RBU builds. (check-in: 10c3e5a031 user: dan tags: trunk)
19:36
Fix a harmless compiler warning in os_unix.c. (check-in: b9d1fb5d44 user: drh tags: trunk)
18:56
Fix a problem with ALTER TABLE when there are views or triggers in the schema that contain "<expr> IS NULL" expressions. (check-in: 91aab32e71 user: dan tags: trunk)
17:47
Fix a problem in ALTER TABLE with SQLITE_OMIT_VIRTUALTABLE builds. (check-in: fa835145e6 user: dan tags: trunk)
17:23
Fix test script problems causing SQLITE_OMIT_VIRTUALTABLE builds to fail. (check-in: 37ad064e5f user: dan tags: trunk)
16:50
Merge accidental fork. (check-in: ebadb7dc25 user: mistachkin tags: trunk)
16:47
Fix harmless compiler warning. (check-in: 88b39c46c1 user: mistachkin tags: trunk)
16:47
Fix a problem causing SQLITE_OMIT_VIRTUALTABLE builds to fail. (check-in: 18beabc848 user: dan tags: trunk)
16:24
Add new test file "alterauth.test". (check-in: 00940265b1 user: dan tags: trunk)
16:20
Add an "ALTER TABLE RENAME COLUMN" command. Upgrade "ALTER TABLE RENAME TABLE" so that it modifies references to the renamed table embedded in SQL view and trigger definitions. (check-in: 4da5998314 user: dan tags: trunk)
16:17
Merge latest trunk changes into this branch. (Closed-Leaf check-in: 8a28a326d7 user: dan tags: alter-table-rename-column)
16:01
Ensure that the tbl_name column in the sqlite_temp_master table is updated correctly as part of a RENAME TABLE operation. (check-in: ffecfca511 user: dan tags: alter-table-rename-column)
14:01
Add the randomshape.tcl test-case generator script to the util subdirectory of the rtree extension. (check-in: 8f48991dcb user: drh tags: trunk)
11:14
Fix excess memory usage in the JSON parser of GEOPOLY. (check-in: 9057e27e12 user: drh tags: trunk)
02:40
Fix a problem with geopoly trying to update both the _shape and an auxiliary column in the same UPDATE statement. (check-in: 14c955152d user: drh tags: trunk)
2018-09-05
17:52
Merge latest trunk changes into this branch. (check-in: 6f4f707f9c user: dan tags: alter-table-rename-column)
17:45
Fix some test script errors. And an incorrect assert() in fts5. (check-in: f804336f08 user: dan tags: alter-table-rename-column)
16:16
Remove an old testcase() macro that is no longer valid. (check-in: e628713338 user: drh tags: trunk)
14:36
Avoid comparing pointer values after the object that they point to has been deleted. (check-in: 2ec7e50cbc user: dan tags: alter-table-rename-column)
08:28
Fix minor code issues in alter.c. (check-in: 18ba35b86f user: dan tags: alter-table-rename-column)
2018-09-04
18:23
Merge latest trunk changes into this branch. (check-in: ef9e088290 user: dan tags: alter-table-rename-column)
2018-09-03
20:05
Improve the error messages emitted by RENAME TABLE. (check-in: 6805b5900d user: dan tags: alter-table-rename-column)
17:11
Ensure that FTS5 queries of the form "WHERE rowid BETWEEN ? AND ? AND tbl MATCH ? ORDER BY rank" do rowid filtering before sorting. (check-in: f1138a38bd user: dan tags: trunk)
2018-09-01
20:38
Add another test case to altertab.test. (check-in: 828e8849fa user: dan tags: alter-table-rename-column)
20:23
Fix a problem with renaming a column in a table that has a temp trigger that references another attached database. (check-in: 336b8a0923 user: dan tags: alter-table-rename-column)
20:02
Fixes for harmless compiler warnings. (check-in: 41b8f38b97 user: drh tags: alter-table-rename-column)
16:55
Fix some harmless compiler warnings and improve defenses against OOM errors. (check-in: 2e2cf992f5 user: drh tags: alter-table-rename-column)
16:13
Merge alter-table-rename-table back into this branch. (check-in: ad704a7c86 user: dan tags: alter-table-rename-column)
16:05
Have "ALTER TABLE ADD COLUMN" reload the entire db schema, as "RENAME COLUMN" and "RENAME TABLE" do. (Closed-Leaf check-in: 8d89ddc1a6 user: dan tags: alter-table-rename-table)
15:55
Merge fixes from the alter-table-rename-column branch that occurred after this branch separated from that one. (check-in: 22e785aa2b user: drh tags: alter-table-rename-table)
15:49
Merge fixes and enhancements from trunk. (check-in: 589186c083 user: drh tags: alter-table-rename-table)
06:13
Update test script snapshot_fault.test to account for the new sqlite3_snapshot_open() error code. (check-in: c1aca7673a user: dan tags: trunk)
2018-08-31
23:22
New hyperlink on the README.md file. (check-in: c663961e34 user: drh tags: trunk)
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)
2018-08-30
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)
2018-08-29
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)
2018-08-28
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)
2018-08-27
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)
2018-08-25
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)
2018-08-24
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)
2018-08-23
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)
2018-08-21
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)
2018-08-20
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)
2018-08-18
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)
2018-08-17
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)
2018-08-16
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)
2018-08-15
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)
2018-08-14
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)
2018-08-13
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)
2018-08-11
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)
2018-08-10
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)
2018-08-09
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)
2018-08-08
20:46
Minor style improvements. (check-in: 60bbca2b9a user: mistachkin tags: trunk)
2018-08-06
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)
2018-08-04
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)
2018-08-03
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)
2018-07-29
18:56
In the command-line shell, always exit if realloc() fails. (check-in: e390023c8e user: drh tags: trunk)
2018-07-28
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)
2018-07-27
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)
2018-07-26
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)
2018-07-25
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)
2018-07-24
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)