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59 check-ins using file src/btree.c version 7271a120a6
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2020-03-30
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| 11:17 | Fix "GCC_VESRION" typo in wal.c. (check-in: fbd9378727 user: dan tags: trunk) | |
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2020-03-28
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| 19:02 | Enhancements to the SQLITE_ENABLE_SETLK_TIMEOUT compile-time option to avoid rare deadlocks on recovery. (check-in: 06885e9aa4 user: drh tags: trunk) | |
| 12:01 | MSVC does not allow constant expressions as initializers for constants with /fp:strict. (check-in: 076658e5d2 user: drh tags: trunk) | |
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2020-03-27
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| 17:23 | Modifications to the way blocking locks are used in SQLITE_ENABLE_SETLK_TIMEOUT builds so that multiple processes or threads may not deadlock when operating on a single database. (Closed-Leaf check-in: c516027d5f user: dan tags: setlk-deadlock-fix) | |
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2020-03-26
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| 16:48 | Add the tables_used() table-valued function as a variation on bytecode(). (check-in: 6283c677d5 user: drh tags: bytecode-function) | |
| 15:28 | Merge updates from trunk. (check-in: d7db091018 user: drh tags: bytecode-function) | |
| 00:29 | Reinstate the optimization that converts "x IN (y)" into "x==y". (check-in: 27936e6884 user: drh tags: trunk) | |
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2020-03-25
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| 20:31 | For the LIKE pattern in the .dump command of the CLI, accept backslash as an escape character. (check-in: 029ceea612 user: drh tags: trunk) | |
| 12:50 | Enhance the ".dump" command in the CLI so that it accepts multiple LIKE pattern arguments and shows the union of all matching tables. (check-in: 45fba3d705 user: drh tags: trunk) | |
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2020-03-24
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| 18:41 | Optimize the "subprog IS NULL" constraint. (check-in: ca8c5f028b user: drh tags: bytecode-function) | |
| 17:52 | Fix a memory leak. (check-in: c9f3405eea user: drh tags: bytecode-function) | |
| 13:27 | Provide content for the bytecode.subprog column. (check-in: df893364b7 user: drh tags: bytecode-function) | |
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2020-03-23
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| 23:17 | Fix the build so that it works even without SQLITE_ENABLE_EXPLAIN_COMMENTS. (check-in: 5896cbf4d0 user: drh tags: bytecode-function) | |
| 20:58 | The bytecode() function now runs and sometimes works, but it untested and there are known problems. (check-in: 6819b86eb2 user: drh tags: bytecode-function) | |
| 19:14 | Further simplification and modularization of the EXPLAIN logic. (check-in: aee1c12f42 user: drh tags: bytecode-function) | |
| 17:24 | Begin breaking appear the sqlite3VdbeList() routine into subroutines that can be reused by the bytecode() table. (check-in: 2c4dd79fbd user: drh tags: bytecode-function) | |
| 15:49 | Infrastructure for the bytecode() table-valued function. The function itself is not yet implemented. (check-in: 2795f0d633 user: drh tags: bytecode-function) | |
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2020-03-21
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| 23:10 | Fix to the recomputation of the colUsed field added by check-in [a9bb71ba708ba722]. This fixes ticket [5829597ac43811e3]. (check-in: 5d14a1c4f2 user: drh tags: trunk) | |
| 22:03 | Enhance the treeview system to show the SrcList_item.colUsed field for FROM clause elements. (check-in: 8a5c539b77 user: drh tags: trunk) | |
| 20:58 | Simplify some of the code modified by the previous commit. (check-in: 04abadb545 user: dan tags: trunk) | |
| 15:41 | Ensure that "main" can always be used to refer to the main database, even if it has been renamed using SQLITE_DBCONFIG_MAINDBNAME. (check-in: 682b426f56 user: dan tags: trunk) | |
| 15:10 | Consolidate some code on this branch. (Closed-Leaf check-in: a85c63daa6 user: dan tags: main-alias-fix) | |
| 15:07 | Change a bitfield in sqlite3_stmt into an unsigned character, for slightly smaller code and better performance. (check-in: 0d4d3c6424 user: drh tags: trunk) | |
| 14:22 | Performance optimization in sqlite3VdbeMakeReady(). (check-in: aa92f9b95f user: drh tags: trunk) | |
| 14:05 | Merge updates from trunk. (Leaf check-in: 2383aa2cb8 user: drh tags: explain-improvements) | |
| 03:40 | Back out the sqlite3_stmt_mode() and EXPLAIN TABLES enhancements, but keep the other miscellaneous improvements to EXPLAIN that were implemented while adding the above: Turn magic numbers into symbolic constants. Add the sqlite3MemPrint() interface accessible to the debugger. Improve the performance and reduce the code size. (check-in: 62aece6677 user: drh tags: explain-improvements) | |
| 00:05 | Recompute the set of columns used for each table when the table is involved in query flattening. (check-in: a9bb71ba70 user: drh tags: trunk) | |
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2020-03-20
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| 20:54 | Allow "main" to be used to refer to the main database even after SQLITE_DBCONFIG_MAINDBNAME has been used to assign another alias. (check-in: 75c85ca32f user: dan tags: main-alias-fix) | |
| 20:18 | Avoid an undefined integer overflow in fts3 by detecting data structure corruption earlier. (check-in: 86e98ddc19 user: dan tags: trunk) | |
| 20:00 | Add the EXPLAIN TABLES syntax that uses SQLITE_STMTMODE_TABLELIST. Seems to work, but not well-tested. (Leaf check-in: e7343ce751 user: drh tags: sqlite3_stmt_mode) | |
| 17:49 | Further simplification of the EXPLAIN logic. Fix the test errors from the previous check-in. (check-in: 5eaba9af1c user: drh tags: sqlite3_stmt_mode) | |
| 16:13 | Revamp the EXPLAIN infrastructure to facilitate sqlite3_stmt_mode(). The currently code mostly works, but there are test failures. This is an incremental check-in. (check-in: e9e17e2125 user: drh tags: sqlite3_stmt_mode) | |
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2020-03-19
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| 21:17 | Initial code for a proposed new sqlite3_stmt_mode() API. This is an incomplete snapshot of a work-in-progress. (check-in: 3cf7537b5e user: drh tags: sqlite3_stmt_mode) | |
| 18:13 | Change the ESCAPE clause on the LIKE operator to override wildcard characters, in order to match the behavior of PosgreSQL. (check-in: 11e0844f71 user: drh tags: trunk) | |
| 17:27 | Fix an integer overflow problem with the dbstat virtual table that comes up when trying to analyze a corrupt database. (check-in: 1d64f4a8af user: drh tags: trunk) | |
| 15:57 | Fix a typo in a comment. No changes to code. (check-in: 3a51919ac2 user: drh tags: trunk) | |
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2020-03-17
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| 13:07 | Improved bytecode comments for the ANALYZE command. (check-in: c38ea4139d user: drh tags: approximate-analyze) | |
| 12:37 | Merge changes from trunk. (check-in: 93d710262e user: drh tags: approximate-analyze) | |
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2020-03-16
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| 18:52 | Fix handling of window functions in aggregate queries that have no GROUP BY clause. Also remove a faulty assert causing the error reported in [618156e3]. (check-in: 38e3dd389d user: dan tags: trunk) | |
| 03:07 | At the end of the right-hand table loop of a LEFT JOIN that uses an IN operator in the ON clause, put the OP_IfNoHope operator after the OP_IfNotOpen operator, not before, to avoid a (harmless) uninitialized register reference. Ticket [82b588d342d515d1] (check-in: 8b437b4726 user: drh tags: trunk) | |
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2020-03-12
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| 17:54 | Remove stray comment characters at the end of an #ifdef that were accidently left in the previous check-in. (check-in: ea914bec81 user: drh tags: trunk) | |
| 17:28 | Fix comments and strengthen assert() statements associated with the OPFLAG_SEEKEQ and BTREE_SEEK_EQ flags. (check-in: 2317492138 user: drh tags: trunk) | |
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2020-03-11
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| 20:03 | Merge enhancements from trunk. (check-in: 4945a66237 user: drh tags: approximate-analyze) | |
| 19:56 | Do not factor out constant functions into the initialization section of a prepared statement, because even though they are constant, they can still throw exceptions. Instead, put such functions in an OP_Once block. This fixes ticket [3c9eadd2a6ba0aa5] and causes COALESCE() and CASE...END to be short-circuit. (check-in: c5f96a085d user: drh tags: trunk) | |
| 19:41 | Rename sqlite3ExprCodeAtInit() to sqlite3ExprCodeRunJustOnce(). Other changes to make the new code cleaner. Test cases added. (Closed-Leaf check-in: d7f1848997 user: drh tags: do-not-factor-functions) | |
| 17:58 | Do not factor out constant functions into the initialization section at the end of the prepared statement, be cause if they throw an exception, it will abort the statement even if the function is never called. Better to put constant functions in an OP_Once block. (check-in: 97a18a5cd7 user: drh tags: do-not-factor-functions) | |
| 02:04 | This variant to the fix for ticket [e0c2ad1aa8a9c691] uses fewer CPU cycles. (check-in: fb5a8a9edd user: drh tags: trunk) | |
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2020-03-10
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| 22:55 | Merge updates from trunk. (check-in: e05f743f61 user: drh tags: approximate-analyze) | |
| 19:24 | Enhanced detection logic for preventing the use of static schema expressions by code generating routines. (check-in: 5f60b527b9 user: drh tags: trunk) | |
| 18:55 | Further changes to ensure that expressions held in table and index definitions do not get passed down into code generator logic where they might be modified. (check-in: f45f5de000 user: drh tags: trunk) | |
| 13:35 | Make a copy of the expression that defines a value of a generated column before sending it to the code generator routines. (check-in: 03d201c041 user: drh tags: trunk) | |
| 11:50 | Apply the correct affinity transformations when pulling values off of the sorter index used for GROUP BY. Ticket [e0c2ad1aa8a9c691] (check-in: 101f7dea75 user: drh tags: trunk) | |
| 02:57 | The sqlite3ExprCodeFactorable() routine should make a copy of non-factorable expressions, as they might be coming from a DEFAULT or generated column in a table constraint. (check-in: a2d6f108c5 user: drh tags: trunk) | |
| 01:24 | Background work for experiments trying to enhance ANALYZE so that it runs off of samples of the entire index and does not need to read the entire index. (check-in: 29d1cc5c36 user: drh tags: approximate-analyze) | |
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2020-03-09
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| 18:26 | Cleaner separation of the STAT4-specific logic in the implementation of ANALYZE. (check-in: 3df07e5a9a user: drh tags: trunk) | |
| 15:39 | Enhancements to the ".import" command of the CLI. (check-in: cab1834cfc user: drh tags: trunk) | |
| 03:21 | Fix typos in RowSet. (check-in: 86465c08f4 user: pdr tags: trunk) | |
| 01:02 | Fix typos in the Lemon documentation. (check-in: 35f1f151ac user: drh tags: trunk) | |
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2020-03-08
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| 13:33 | Avoid a redundant NULL check (check-in: 25dc53f660 user: pdr tags: trunk) | |