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59 check-ins using file src/expr.c version 40d06d15
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2014-07-24
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| 20:25 | Avoid trying to allocation zero bytes when analyzing a unique non-null index. (Closed-Leaf check-in: 85e2bade user: drh tags: faster-analyze) | |
| 19:54 | Avoid change tests when analyzing single-column unique indexes after getting past the initial NULL entries. (check-in: 4690e99c user: drh tags: faster-analyze) | |
| 12:09 | In the command-line shell, in CSV output mode, terminate rows with CRNL but do not expand NL characters in data into CRNL. Provide the extra -newline command-line option and the extra argument to .separator to designate an alternative newline character sequence for CSV output. (check-in: 16c8ce10 user: drh tags: trunk) | |
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2014-07-23
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| 23:57 | Add experimental "costmult" logic. Only enabled when compiled with -DSQLITE_ENABLE_COSTMULT. (check-in: 729ece40 user: drh tags: trunk) | |
| 19:37 | Ugh. Consecutive UNIQUE index entries are only distinct if the index is on NOT NULL columns. So the previous version was not quite right. This check-in fixes the problem. (check-in: 30033f96 user: drh tags: faster-analyze) | |
| 18:36 | Improve the performance of the ANALYZE command by taking advantage of the fact that every row of a UNIQUE index is distinct. (check-in: 3e1e79e1 user: drh tags: faster-analyze) | |
| 15:51 | Updated documentation on sqlite3_temp_directory. No changes to code. (check-in: e6225a7b user: drh tags: trunk) | |
| 02:07 | Casting hex literals directly from string to float always results in a positive number. (check-in: 4b86ccdf user: drh tags: hex-literal) | |
| 01:59 | Reformatting a few test cases for clarity. (check-in: 7e1bbacb user: drh tags: hex-literal) | |
| 01:56 | Test cases for hex literals. (check-in: 19054339 user: drh tags: hex-literal) | |
| 01:26 | Add support for parsing C-style hexadecimal literals. (check-in: 34a1f38b user: drh tags: hex-literal) | |
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2014-07-22
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| 22:46 | When running ANALYZE, it is not necessary to check the right-most key column for changes since that column will always change if none of the previous columns have. (check-in: 48f40861 user: drh tags: trunk) | |
| 20:02 | Add the OP_ReopenIdx opcode that works like OP_OpenRead except that it becomes a no-op if the cursor is already open on the same index. Update the OR-optimization logic to make use of OP_ReopenIdx in order to avoid unnecessary cursor open requests sent to the B-Tree layer. (check-in: 77f412ca user: drh tags: trunk) | |
| 19:14 | The optimization of check-in [b67a6e33f2] does not work (it generates incorrect VDBE code) if an OR term is AND-ed with a constant expression. So back that optimization out and add a test case to make sure it does not get added back in. (check-in: eed754fe user: drh tags: trunk) | |
| 16:00 | Fix the index name for the shadow tables in the spellfix1 extension so that multiple instances of the spellfix1 virtual table can each have their own index. (check-in: 438c348a user: drh tags: trunk) | |
| 15:33 | Correction: The maximum SQLITE_MAX_ATTACHED value to avoid overflowing a signed 8-bit integer is 125, not 127. (check-in: 48e37802 user: drh tags: trunk) | |
| 14:58 | Enhance the sqlite_stat1.stat parsing to allow additional text parameters at the end. Unrecognized parameters are silently ignored. (check-in: ca2a5a2c user: drh tags: trunk) | |
| 14:42 | Expire prepared statements after running ANALYZE. (check-in: b083a961 user: drh tags: trunk) | |
| 12:05 | Enhance the comment on whereLoopAddBtree(). No changes to code. (check-in: b22dd165 user: drh tags: trunk) | |
| 00:40 | For the OR-optimization, avoid generating OP_OpenRead opcodes that reopen exactly the same index. (check-in: b67a6e33 user: drh tags: trunk) | |
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2014-07-21
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| 20:07 | Limit the maximum SQLITE_MAX_ATTACHED to 127, since a signed character is sometimes used to store the database index. (check-in: f1c76c7c user: drh tags: trunk) | |
| 15:44 | Allow the SQLITE_MAX_ATTACHED compile-time option to be larger than 62. The default limit on the number of attached databases remains 10. (check-in: 1a817ae2 user: drh tags: trunk) | |
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2014-07-19
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| 20:15 | Add new ASCII mode to the shell capable of importing and exporting using the official unit and record separators (i.e. 0x1F and 0x1E, respectively). (check-in: 7fe601ea user: mistachkin tags: asciiMode) | |
| 17:57 | Update the sqlite3_stmt_busy() function so that it correctly returns true for "ROLLBACK" statements that have been stepped but not yet reset. (check-in: 61cee3c0 user: dan tags: trunk) | |
| 17:49 | Fix harmless compiler warnings in the showdb and showwal tools and in the unicode tokenizer of FTS3. (check-in: 574cc8eb user: drh tags: trunk) | |
| 15:44 | Fix some harmess compiler warnings in the FTS3 Unicode module. (Closed-Leaf check-in: c01caea5 user: mistachkin tags: toolWarnings) | |
| 15:40 | Fix warnings related to having a 64-bit size_t. (check-in: 29ac9336 user: mistachkin tags: toolWarnings) | |
| 15:30 | Fix warnings caused by the previous commit. (check-in: 89634a41 user: mistachkin tags: toolWarnings) | |
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2014-07-18
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| 21:16 | Fix harmless compiler warnings for MSVC in the showdb/showwal command line tools. (check-in: 6dc7b2f1 user: mistachkin tags: toolWarnings) | |
| 21:02 | Update clean targets with the recently added command-line tools. (check-in: 2beefa68 user: mistachkin tags: trunk) | |
| 19:06 | Improved documentation for checkpoints and the busy handler. No changes to code. (check-in: ca92c024 user: drh tags: trunk) | |
| 17:39 | SQLite has long accepted some unadvertised and non-standard join syntax. Add a test to ensure that future versions continue to accept this non-standard syntax, to avoid breaking legacy applications that use the undefined syntax. (check-in: 824dde7f user: drh tags: trunk) | |
| 14:43 | Improvements to the ".fullschema" command in the command-line shell. (check-in: fa80c64c user: drh tags: trunk) | |
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2014-07-07
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| 18:03 | Fix harmless compiler warnings in the fts3view utility program that can occur with MSVC. (check-in: 1cec1e03 user: mistachkin tags: trunk) | |
| 17:57 | Add the fts3view utility program to the MSVC makefile. (check-in: b04751bd user: mistachkin tags: trunk) | |
| 16:07 | Fix a division-by-zero error in the fts3view utility program. Add the fts3view utility program to the "main.mk" makefile. (check-in: 64f02699 user: drh tags: trunk) | |
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2014-07-03
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| 12:18 | Change fts3/4 so that the "unicode61" is included in builds by default. It may now be excluded by defining SQLITE_DISABLE_FTS3_UNICODE. (check-in: 0cc0230a user: dan tags: trunk) | |
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2014-07-01
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| 15:22 | Add another test to verify that SQLite is using stat4 data for composite primary keys on WITHOUT ROWID tables. (check-in: 0df1fe72 user: dan tags: trunk) | |
| 11:54 | Ensure that all fields are loaded from the stat4 table for records that correspond to indexes on WITHOUT ROWID tables with composite primary keys. (check-in: 21981e35 user: dan tags: trunk) | |
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2014-06-30
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| 20:25 | Merge the latest trunk changes into the threads branch. (check-in: ae23a65e user: drh tags: threads) | |
| 20:02 | Merge the latest trunk enhancements into the sessions branch. (check-in: a5d94eab user: drh tags: sessions) | |
| 19:57 | Merge the latest trunk changes into the apple-osx branch. (check-in: f426876f user: drh tags: apple-osx) | |
| 19:28 | Bump the version number to 3.8.6. (check-in: f925e9ba user: drh tags: trunk) | |
| 19:07 | Attempt to use STAT4 information to estimate the selectivity of WHERE clause terms when using the skip-scan optimization. (check-in: d09ca6d5 user: drh tags: trunk) | |
| 18:57 | Fix for ticket [b2fa5424e6fcb15]: Better define the format of the sqlite_stat4 file for WITHOUT ROWID tables and make sure the ANALYZE command generates a file in the appropriate format. Use the sqlite_stat4 data to enable the use of WHERE terms that cover all indexed columns plus some prefix of columns in the primary key. (check-in: bc2de809 user: drh tags: trunk) | |
| 18:02 | Fix a problem in where.c with using the stat4 sample data of an index on a WITHOUT ROWID table. (Closed-Leaf check-in: 053a210e user: dan tags: stat4-without-rowid) | |
| 17:07 | Fix the STAT4 information for WITHOUT ROWID tables. (check-in: 5d8628fd user: drh tags: stat4-without-rowid) | |
| 15:23 | Fix where.c so that the primary key values appended to every index entry on a WITHOUT ROWID table may be used when useful. (check-in: 6624a61d user: dan tags: stat4-without-rowid) | |
| 13:56 | Omit non-primary-key columns from the STAT4 samples for WITHOUT ROWID tables. Indexes, both rowid and without-rowid, still hold an exact copy of the index entry. (check-in: de826c31 user: drh tags: stat4-without-rowid) | |
| 13:32 | Generate complete samples for sqlite_stat4 on WITHOUT ROWID tables. Ticket [b2fa5424e6fcb15b5] (check-in: 8cb43edd user: drh tags: stat4-without-rowid) | |
| 11:14 | Add makefile targets for various diagnostic tools, such as showstat4. Fix harmless compiler warnings in diagnostic tools. (check-in: 6f86d89b user: drh tags: trunk) | |
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2014-06-28
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| 19:06 | Add an OOM fault injection test for the new code on this branch. (Closed-Leaf check-in: c96de490 user: dan tags: stat4-skipscan) | |
| 17:35 | Add further tests to skipscan5.test. (check-in: 4b8230e8 user: dan tags: stat4-skipscan) | |
| 16:06 | Add header comments on new routines. Rework the sqlite3Stat4Column() routine so that is (in theory) able to deal with corrupt samples. (check-in: ef5cdf94 user: drh tags: stat4-skipscan) | |
| 15:26 | Fix a problem with using stat4 samples of type text when estimating the rows visited by a range-query/skip-scan loop. (check-in: dfb09db6 user: dan tags: stat4-skipscan) | |
| 14:28 | Change the VDBE to export the sqlite3MemCompare() routine and thus free where.c from the dependency on vdbeInt.h. (check-in: d186d1ac user: drh tags: stat4-skipscan) | |
| 14:25 | Merge fixes from trunk with this branch. (check-in: 6af219d1 user: dan tags: stat4-skipscan) | |
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2014-06-26
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| 22:17 | Add some more IN operator tests. (check-in: fb32e374 user: mistachkin tags: trunk) | |
| 21:28 | Revise the affinity returned for expressions flagged as 'generic'. Fix for [9a8b09f8e6]. (check-in: 92f7ad43 user: mistachkin tags: trunk) | |