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61 events for the month beginning 2013-07-01 by user drh
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2013-07-31
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| 23:22 | Add logic to the query planner to only use partial indices if the WHERE clause constrains the search to rows covered by the partial index. This is just infrastructure. The key routine, sqlite3ExprImpliesExpr(), is currently a no-op so that partial indices will never be used. (check-in: 8ca3eac1 user: drh tags: partial-indices) | |
| 19:55 | The MAX_PATH constant in windows is measured in characters, so multiple by 3 to get the number of bytes assuming worst-case UTF8 pathnames. (check-in: bb06e157 user: drh tags: trunk) | |
| 19:05 | Resolve names in CREATE INDEX WHERE clauses and detect errors. Disallow expressions that contain variables, subqueries, or functions. The expression is still not used for anything, however. still unused. (check-in: f2aa7842 user: drh tags: partial-indices) | |
| 18:12 | Here begins an experimental branch for exploring the idea of a partial index. This check-in is able to parse a WHERE clause on a CREATE INDEX statement, but does not actually do anythingn with that WHERE clause yet. (check-in: 6794b2dc user: drh tags: partial-indices) | |
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2013-07-30
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| 15:10 | Reduce the size of the stack required by the codeOneLoopStart() function in where.c. (check-in: eb6d4278 user: drh tags: trunk) | |
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2013-07-29
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| 15:54 | Comment and preprocessor macro cleanup. (check-in: c0809b5e user: drh tags: trunk) | |
| 13:51 | In main.mk, always recompile vdbe.o and parse.o first, since changes to either parse.y or vdbe.c will cause all files to be recompiled and if there are syntax errors in vdbe.c or parse.y we want to hit them early in the compile process. (check-in: a94a66d1 user: drh tags: trunk) | |
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2013-07-25
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| 17:07 | In the command-line shell, work around the fact that popen() and pclose() are not defined in stdio.h. in C89 and later. (check-in: 8bcbb33f user: drh tags: trunk) | |
| 16:27 | Enhance the progress handler so that it keeps track of the number of VDBE cycles across sqlite3_step() calls and issues callbacks when the cumulative instruction count reaches threshold. (check-in: 4698a82e user: drh tags: trunk) | |
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2013-07-24
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| 15:02 | • Edit [0165789f08339810|0165789f]: Mark "Closed". (artifact: 40202001 user: drh) | |
| 14:54 | Another attempt at generalizing the URI parsing so that it works with a wider variety of file URIs and yet remains backwards compatible. (check-in: de05eb75 user: drh tags: uri-enhancement) | |
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2013-07-23
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| 22:28 | Get the new URI logic working for Windows. (Closed-Leaf check-in: 0165789f user: drh tags: uri-enhancement) | |
| 20:54 | Update the URI filename parser to allow (and ignore) authority names in unix and to pass the authority through to the OS on windows, as this appears to be what web-browsers are doing. (check-in: 74c12dee user: drh tags: uri-enhancement) | |
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2013-07-18
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| 20:28 | Remove unused "codec" code from the command-line shell. (check-in: 37abfe0c user: drh tags: trunk) | |
| 18:45 | • Fixed ticket [406d3b2e]: SQL function auxdata associated with parameters is not cleared plus 5 other changes (artifact: 52adadc1 user: drh) | |
| 18:45 | Improved documentation for sqlite3_set_auxdata(). Ticket [406d3b2ef91c]. (check-in: 62465ecb user: drh tags: trunk) | |
| 18:26 | • Edit [71effa59c98d167e|71effa59]: Move to branch typo. Edit check-in comment. (artifact: 0cb4dbc3 user: drh) | |
| 14:50 | Fix a 8-byte alignment problem in the query planner that might cause problems on sparc when compiled with -m32. (check-in: 5dcffa67 user: drh tags: trunk) | |
| 14:16 | Documentation changes to warn that sqlite3_set_auxdata() might call the destructor even before it returns. Also fix the regexp extension to deal with that case. Ticket [406d3b2ef91c]. (check-in: 7acc8cd3 user: drh tags: trunk) | |
| 14:15 | • New ticket [406d3b2e] SQL function auxdata associated with parameters is not cleared. (artifact: aec7efdd user: drh) | |
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2013-07-17
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| 21:08 | Fix copy/paste errors in comments in the transitive_closure virtual table. No changes to code. (check-in: b1b0de29 user: drh tags: trunk) | |
| 18:12 | Enhance the sqlite3_analyzer tool to give reports on the sizes of individual indices. (check-in: 3b4096cc user: drh tags: trunk) | |
| 11:54 | • Fixed ticket [78588b93]: Virtual Table Sync frees pVtab->zErrMsg without zeroing plus 5 other changes (artifact: 5ac587c3 user: drh) | |
| 11:54 | Clear the error string pointer in sqlite3_vtab object after the error string is transferred to SQLite. Ticket [78588b938a11]. (check-in: 64bf8148 user: drh tags: trunk) | |
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2013-07-16
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| 23:26 | Make sure the sqlite3_prepare16 and sqlite3_prepare16_v2 interfaces do not read past a zero-terminator if the nBytes parameter is too large. (check-in: 20dba3a7 user: drh tags: trunk) | |
| 21:31 | Enhance the query planner so that it looks at multiple solutions to OR expressions in the WHERE clause. (check-in: 5e19d054 user: drh tags: trunk) | |
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2013-07-15
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| 17:02 | Add the sqlite3_cancel_auto_extension(X) interface which will undo a prior call to sqlite3_auto_extension(X). (check-in: cdce87eb user: drh tags: trunk) | |
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2013-07-12
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| 21:09 | Make sure the shell does not try to put a zero terminator on the end of an unallocated zero-length string when running ".import" on an empty file. (check-in: 92adaee5 user: drh tags: trunk) | |
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2013-07-11
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| 19:04 | Change the description of how sqlite3_progress_handler() works so that the N parameter is "approximate". This aligns with the current implementation. This is a documentation change only. No changes to code. (check-in: 7d829bde user: drh tags: trunk) | |
| 15:31 | Merge recent trunk changes (such as the query_only PRAGMA, the defer_foreign_keys PRAGMA, and the SQLITE_DBSTATUS_DEFERRED_FKS parameter to sqlite3_db_status()) into the sessions branch. (check-in: 8dfc0b78 user: drh tags: sessions) | |
| 15:22 | • Edit [ece960c496717a3a|ece960c4]: Mark "Closed". (artifact: c21151c8 user: drh) | |
| 15:22 | Add the experimental "query_only" pragma. (check-in: 6557c407 user: drh tags: trunk) | |
| 15:03 | Add the "defer_foreign_keys" pragma and the SQLITE_DBSTATUS_DEFERRED_FKS value for sqlite3_db_status(). This is a cherry-pick of a sequence of five checkins in the sessions branch between [1d44e5d3c2] and [d39e65fe70]. (check-in: 527121ac user: drh tags: trunk) | |
| 13:49 | Remove the undocumented sqlite3_foreign_key_check() API and replace it with sqlite3_db_status(db, SQLITE_DBSTATUS_DEFERRED_FKS, ...). Add test cases for the new functionality. (check-in: d39e65fe user: drh tags: sessions) | |
| 12:19 | Rename the SQLITE_DeferForeignKeys macro to shorter SQLITE_DeferFKs. Move the "defer_foreign_keys" pragma into the flagPragma() routine. (check-in: 3a2ab74c user: drh tags: sessions) | |
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2013-07-10
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| 18:14 | Fix harmless compiler warnings in the progress callback logic. (check-in: 908141d5 user: drh tags: trunk) | |
| 13:33 | Experimental "PRAGMA query_only=BOOLEAN" statement that is able to turn write capabilities on and off. (Closed-Leaf check-in: ece960c4 user: drh tags: query_only) | |
| 03:05 | Run progress callback checks less frequently in the main VDBE evaluation loop. This makes up for the extra CPU cycles used to increment the cycle counter for SQLITE_STMTSTATUS_VM_STEP. (check-in: 3e8b0201 user: drh tags: trunk) | |
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2013-07-09
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| 15:56 | Adjust the costs in the xBestIndex function of the spellfix1 virtual table to force the use of the MATCH term if it is available. (check-in: f003bea9 user: drh tags: trunk) | |
| 14:49 | • Fixed ticket [83e9014e]: Incorrect result from sqlite3_stmt_status with SQLITE_STMTSTATUS_FULLSCAN_STEP plus 5 other changes (artifact: 0ed0251c user: drh) | |
| 14:49 | • Fixed ticket [5ed17728]: Incorrect ORDER BY on an indexed JOIN plus 3 other changes (artifact: d19dcda5 user: drh) | |
| 14:48 | • Fixed ticket [bc1aea7b]: Incorrect result on LEFT JOIN with OR constraints and an ORDER BY clause plus 3 other changes (artifact: a9504bb4 user: drh) | |
| 13:05 | Pull in all the latest changes from trunk. (check-in: af3ca4c6 user: drh tags: sessions) | |
| 12:36 | • Edit [f2ab8747825ab513|f2ab8747]: Mark "Closed". (artifact: d8146170 user: drh) | |
| 12:36 | Modify several extensions to use the new exported function naming. Fix some shared library compilation issues. (check-in: 1e39f850 user: drh tags: trunk) | |
| 03:04 | • Fixed ticket [490a4b72]: "WHERE 0" on the first element of a UNION causes an assertion fault plus 5 other changes (artifact: 1df98610 user: drh) | |
| 03:04 | Make sure the schema is verified prior to processing a "WHERE 0" on the first term of a compound SELECT statement. Fix for ticket [490a4b723562429] (check-in: 52a49cbc user: drh tags: trunk) | |
| 02:24 | • New ticket [490a4b72] "WHERE 0" on the first element of a UNION causes an assertion fault. (artifact: 3edae247 user: drh) | |
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2013-07-08
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| 22:33 | Make sure an adequate number of digits are shown for binary-to-text rendering of very small floating point values. (check-in: 776e65f9 user: drh tags: trunk) | |
| 21:13 | • Fixed ticket [d805526e]: Incorrect join result or assertion fault due to transitive constraints plus 5 other changes (artifact: 13a3400d user: drh) | |
| 21:12 | Fix an adverse interaction between the IS NOT NULL optimization (available only with SQLITE_ENABLE_STAT3) and the transitive constraint processing. Fix for ticket [d805526eae253] (check-in: 3b30b75b user: drh tags: trunk) | |
| 18:02 | • New ticket [d805526e] Incorrect join result or assertion fault due to transitive constraints. (artifact: d1fbaa0a user: drh) | |
| 01:27 | Add an optional 5th parameter to the next_char() function that is the collating sequence to use for comparison. (check-in: 9415db6e user: drh tags: trunk) | |
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2013-07-02
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| 15:25 | Remove a surplus local variable (check-in: 91bc840e user: drh tags: trunk) | |
| 00:06 | Fix harmless typos in comments of two extensions. (check-in: 1c3ed47b user: drh tags: trunk) | |
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2013-07-01
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| 20:02 | Add a query planner test case submitted by Elan Feingold and based on the Plex project. (check-in: 3d49c593 user: drh tags: trunk) | |
| 17:27 | • Fixed ticket [868145d0]: Assertion fault on double LEFT JOIN plus 5 other changes (artifact: 9030cb09 user: drh) | |
| 17:27 | Add a missing test that prevented double LEFT JOINs with transitive constraints from working correctly. Fix for ticket [868145d012]. (check-in: 72919ec3 user: drh tags: trunk) | |
| 16:47 | • New ticket [868145d0] Assertion fault on double LEFT JOIN. (artifact: 7bb99dad user: drh) | |
| 11:05 | Further minor comment corrections and enhancements in where.c. (check-in: 0d68d4d0 user: drh tags: trunk) | |
| 10:38 | Make a trivial comment fix in where.c. (check-in: 0ffaab3b user: drh tags: trunk) | |