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50 check-ins occurring around cd0b37c52658bfdf.

2012-12-19
17:10
Backport to the 3.7.15 branch the fix to the segfault problem of ticket [a7b7803e8d1e869] which involved the use of "AS" named result columns as logical terms of the WHERE clause. Also, change the version number to 3.7.15.1. (check-in: bae528f486 user: drh tags: branch-3.7.15)
16:58
Fix the segfault problem of ticket [a7b7803e8d1e869] which involved the use of "AS" named result columns as logical terms of the WHERE clause. (check-in: b3c9e8f812 user: drh tags: trunk)
16:32
A couple more test cases. (Closed-Leaf check-in: 0ae142178d user: drh tags: tkt-a7b7803e)
16:25
Additional test cases involving the use of a result column specified by its "AS" name as a logical term of the WHERE clause. Ticket [a7b7803e8d1e8699cd]. (check-in: d7cc364e87 user: drh tags: tkt-a7b7803e)
15:53
Proposed fix for ticket [a7b7803e8d1e8699cd8a]. (check-in: 3d0e00c731 user: drh tags: tkt-a7b7803e)
13:41
Add commentary to the ExprList object to explain how zSpan is overloaded. Add test cases for the new name resolution functionality. (check-in: 3e7d84db78 user: drh tags: name-resolution-fix)
02:36
Better resolution of table and column names in joins where some of the terms of the FROM clause are parenthesized. (check-in: 7344e791b9 user: drh tags: name-resolution-fix)
2012-12-18
19:36
Optimize the degenerate case of a FROM clause table name enclosed all by itself inside parentheses. Generate code as if the parentheses did not exist, rather than the old behavior of manifesting the parenthesized table into a transient table. Also, tag every FROM-clause SELECT subquery that is generated by a parenthesized FROM-clause expression using the SF_NestedFrom flag. The new SF_NestedFrom flag is not yet used for anything. (check-in: 7fecced466 user: drh tags: trunk)
16:07
Resolve names in FROM-clause subqueries prior to resolving names in the result set expressions of a SELECT statement. (check-in: 9b67c633d9 user: drh tags: trunk)
13:12
Remove old commented-out code from parse.y. Fix some over-length source lines in parse.y. No logical changes. (check-in: 7e30c021ab user: drh tags: trunk)
11:59
On atomic-write capable systems, if copying the contents of an in-memory journal to disk fails, close the (on disk) journal file before returning the error to the caller. This causes the subsequent rollback operation to use the in-memory journal. Fix for [df678d738adb]. (check-in: 8183d8d7ae user: dan tags: trunk)
2012-12-17
22:32
Added test cases for PRAGMA foreign_key_check. Fixed a bug that appears when the column order of the child and parent differ. (check-in: 25411f83f9 user: drh tags: foreign-key-check)
20:57
Add to the foreign_key_check pragma an extra output column "parent" that contains the name of the parent table for the constraint that failed. (check-in: 97f7f73772 user: drh tags: foreign-key-check)
20:40
Enhance the error message for "foreign key mismatch" to include the names of the child and parent tables. Begin adding test cases for PRAGMA foreign_key_check. Make sure PRAGMA foreign_key_check gets all necessary table locks. (check-in: 0f9963526c user: drh tags: foreign-key-check)
18:43
"PRAGMA foreign_key_check" with no argument checks the foreign keys on all tables. (check-in: 57d47423a6 user: drh tags: foreign-key-check)
18:05
Fix an issue with child keys that are not INTEGER PRIMARY KEY referencing INTEGER PRIMARY KEY in the parent. (check-in: 603b695bf0 user: drh tags: foreign-key-check)
16:46
Prototype for PRAGMA that checks all foreign key constraints on a table. (check-in: 01c980e9bb user: drh tags: foreign-key-check)
2012-12-14
17:54
Optimize IN operators in the WHERE clause of queries using virtual tables. (check-in: 3d65c70343 user: drh tags: trunk)
17:48
Remove an unreachable branch. Improvements to comments. (Closed-Leaf check-in: d2fb7619b0 user: drh tags: vtab-IN-opt)
15:54
Merge in all the trunk changes that have occurred since this branch was opened. (check-in: 6d507e4de9 user: drh tags: vtab-IN-opt)
15:36
Fix the virtual table IN optimizer so that it work even if the virtual table implementation leaves the sqlite3_index_info.aConstraintUsage[].omit flag clear for an equality constraint that it intends to use. (check-in: d6e045f89c user: drh tags: vtab-IN-opt)
2012-12-13
18:57
Generalize the min/max optimization so that if an appropriate index exists, the index it can be used by any aggregate query that contains only a single max() or min() and does not contain a GROUP BY clause. (check-in: 52e755943f user: drh tags: trunk)
18:51
Increase the version number to 3.7.16 in advance of adding new features for the next release. (check-in: 8bcf5f51d8 user: drh tags: trunk)
16:37
Attempt to further generalize the min/max optimization so that, if an appropriate index exists, it can be used by any aggregate query that contains only a single aggregate of the form max(colname) or min(colname) and does not contain a GROUP BY clause. (Closed-Leaf check-in: 7280e14cd8 user: dan tags: minmax-opt)
2012-12-12
14:30
Allow the error message from "PRAGMA integrity_check" to be longer than 20,000 bytes. (check-in: 120c82d56e user: drh tags: trunk)
13:36
Version 3.7.15 (check-in: cd0b37c526 user: dan tags: trunk, release, version-3.7.15)
2012-12-11
19:40
Update requirements marks and test cases for multi-VALUE INSERT and to fix typos in requirements text. (check-in: 81d9ee0f0d user: drh tags: trunk)
19:10
Fix a typo in a comment that is used to generate documentation. No changes to code. (check-in: e38adb60a7 user: drh tags: trunk)
2012-12-10
22:19
When an arithmetic operation with two integer operands must give a floating-point answer due to overflow, make sure the answer is not rounded back to integer by affinity. (check-in: bd7aeeb691 user: drh tags: trunk)
10:22
Modify releasetest.tcl so that it runs the "checksymbols" test on a build without SQLITE_DEBUG defined. If SQLITE_DEBUG is defined, the sqlite3WhereTrace variable causes the test to fail. (check-in: 75e545a9e2 user: dan tags: trunk)
09:08
Remove a reference to JumpOnce from a comment in vdbe.c. No code changes. (check-in: ee662c039d user: dan tags: trunk)
2012-12-08
23:37
Pull the latest trunk changes into the sessions branch, and in particular the collating-sequence refactorization. (check-in: 4f6d69ae94 user: drh tags: sessions)
22:14
Factor some work out of the index loop of the bestBtreeIndex() routine for a small performance increase. (check-in: 92c9ab56b1 user: drh tags: trunk)
21:51
Refactor collating-sequence handling as a fix for ticket [71e333e7d2e642]. The Expr.pColl field is removed from the Expr object. The COLLATE operator now becomes a separate instance of Expr in the expression tree. The code generator looks up the correct collating function as needed, rather than referring to Expr.pColl. (check-in: 8542e6180d user: drh tags: trunk)
21:36
Adjustments to the collating-sequence refactoring to facilitate full-coverage testing and to fix some minor issues found by TH3. (Closed-Leaf check-in: cdbfa66483 user: drh tags: ticket-71e333e7)
14:16
Make sure WHERE clause constraints A=B and B=A work the same even with COLLATE clauses. (check-in: b3f5366811 user: drh tags: ticket-71e333e7)
13:26
Fix the header comment on the OP_Compare operator. (check-in: 2722f4074f user: drh tags: ticket-71e333e7)
06:46
Merge updates from trunk. (check-in: e65db42c9f user: mistachkin tags: configReadOnly)
04:10
Duplicating check constraint expressions prior to code generation is no longer required, and so it is removed. (check-in: 1a9db8dc2f user: drh tags: ticket-71e333e7)
03:34
Veryquick passes all tests now. (check-in: 7b96115e81 user: drh tags: ticket-71e333e7)
00:52
Recognize TK_COLLATE operators that have been transformed into TK_REGISTER. Skip both TK_COLLATE and TK_AS operators when looking for the top of an expression. (check-in: f66c1db296 user: drh tags: ticket-71e333e7)
2012-12-07
23:23
Improved error messages when column integers in an ORDER BY clause are out of range. (check-in: bd960d937f user: drh tags: ticket-71e333e7)
23:10
For an ORDER BY on a compound SELECT, take the collating sequence from the left-most term of the compound. (check-in: 8e724b383d user: drh tags: ticket-71e333e7)
22:54
Do not report missing collating functions while parsing the schema. Also remove a stray comment. (check-in: e313edca04 user: drh tags: ticket-71e333e7)
22:18
Fix a long-standing issue with the distinct-as-aggregate optimization that only expressed when the new collating-sequence logic is turned on. (check-in: 0aaf52a339 user: drh tags: ticket-71e333e7)
21:02
Fix the processing of ORDER BY clauses with COLLATE terms on compound queries. 52 veryquick test failures remain. (check-in: 49654453ad user: drh tags: ticket-71e333e7)
20:31
Many more tests are passing. Only about 100 failures remain in veryquick. (check-in: f9fa7581c0 user: drh tags: ticket-71e333e7)
19:28
Ensure the VerifyCookie sub-routine has been run before the database is accessed in an obscure case. Fix for ticket [d6b36be38]. (check-in: 2d5f37c99a user: dan tags: trunk)
18:38
Some errors in veryquick resolved. Many more to go. (check-in: 972443b4eb user: drh tags: ticket-71e333e7)
14:02
Veryquick now runs to completion without segfaulting or asserting. But there are still lots of errors. (check-in: 7fafab12e4 user: drh tags: ticket-71e333e7)