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50 check-ins occurring around 414f0d6a647a4d04.
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2014-10-06
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| 14:37 | Improve the accuracy of the estimates used when searching an index for values not present in any stat4 samples. (check-in: 3aff9a9cac user: dan tags: trunk) | |
| 12:41 | Fix a harmless compiler warning inside an assert() in FTS4. (check-in: 418f3c9ad2 user: drh tags: trunk) | |
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2014-10-04
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| 19:31 | Tweaks to documentation on sqlite3_open() and sqlite3_bind(). No code changes. (check-in: b8f7f19dc0 user: drh tags: trunk) | |
| 11:59 | Updates to documentation and requirements marks. No code changes. (check-in: 0f8102d71a user: drh tags: trunk) | |
| 10:22 | Add a test to show that the change on this branch is effective. (Closed-Leaf check-in: fc619be057 user: dan tags: stat4-avgeq) | |
| 00:07 | Avoid leaking Index.aiRowEst memory if an OOM causes a rollback which deletes the index before the aiRowEst deletion code in sqlite3AnalysisLoad() routine has a chance to run. Since the aiRowEst now might be deleted from freeIndex() which does not always have a db pointer, make sure the aiRowEst memory is not held in lookaside. (check-in: efd87ba142 user: drh tags: stat4-avgeq) | |
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2014-10-03
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| 19:29 | Fix a division-by-zero error that might occur if the sqlite_stat1 table is corrupt. (check-in: f9c053b23e user: dan tags: stat4-avgeq) | |
| 19:16 | Improve the accuracy of the estimates used when searching an index for values not present in any stat4 samples under some circumstances. (check-in: e6f7f97dbc user: dan tags: stat4-avgeq) | |
| 16:00 | Add requirements marks on the sqlite3_db_status() interface implementation. Fix a typo in the documentation. Fix the new sqlite3_result_text64() routine so that it works correctly with an encoding parameter of SQLITE_UTF16. (check-in: d2fc322728 user: drh tags: trunk) | |
| 14:54 | Update to requirements marks related to changes in the memory allocation interface and enhancement of the documentation regarding DEFAULT clauses in CREATE TABLE. (check-in: 440705b98a user: drh tags: trunk) | |
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2014-10-02
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| 21:52 | Avoid a NULL pointer deference when processing the IS operator if the right-hand side is an illegal "#ID" style variable. Fix for ticket [8c32a33a53092c85a15b] (check-in: ffe7573636 user: drh tags: trunk) | |
| 09:27 | Fix a segfault that could occur if an 'optimize' command was issued on an FTS table that contained at least one row but zero terms. (Leaf check-in: b21746ac11 user: dan tags: branch-3.7.14) | |
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2014-10-01
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| 13:17 | Show the TK_DOT operator in the TreeView debugging output. No changes to production code. (check-in: 07c89940c4 user: drh tags: trunk) | |
| 12:01 | Avoid ever writing before the start of an allocated buffer in the DIRECT_OVERFLOW_READ code. Fix for [e3a290961a6]. (check-in: c3c15d20c6 user: dan tags: trunk) | |
| 01:52 | Merge the latest enhancements from trunk. (check-in: 2695772c98 user: drh tags: sessions) | |
| 01:46 | Merge the latest enhancements from trunk. (check-in: 2078454ac9 user: drh tags: apple-osx) | |
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2014-09-30
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| 21:24 | Draw the TreeView debugging graphs using unicode box-drawing characters. (Closed-Leaf check-in: 0efc6859d1 user: drh tags: box-character-graph) | |
| 19:04 | Improvements to the new syntax-tree output routines: Omit the "END SELECT" mark and instead terminate the graph at the last item. Increase the maximum tree depth to 100. (check-in: 5ce05757aa user: drh tags: trunk) | |
| 17:31 | Enable the query planner to deal with WHERE clauses that have OR terms nested within AND terms that are nested within OR terms. Also remove an unused function declaration. (check-in: b6b289182f user: drh tags: trunk) | |
| 17:03 | Further enhancements to the "wheretrace" debugging output. (check-in: 670993eb81 user: drh tags: trunk) | |
| 14:14 | Enhanced debug output for OR-logic in the query loop optimizer. (check-in: 2e375eae47 user: drh tags: trunk) | |
| 13:46 | Show tree diagrams of data structures in the debugging output when the 0x100 bit is set on sqlite3WhereTrace or sqlite3SelectTrace. (check-in: 92e0b4bd4d user: drh tags: trunk) | |
| 12:33 | Remove the SQLITE_ENABLE_TREE_EXPLAIN compile-time option. Add alternative debugging display routines: sqlite3TreeViewExpr(), sqlite3TreeViewExprList(), and sqlite3TreeViewSelect(). (check-in: 4ff51325d6 user: drh tags: trunk) | |
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2014-09-29
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| 18:47 | Add the OPFLAG_MULTICOLUMN flag to the OP_Column opcode. Rearrange OP_Column instructions to take advantage of the new flag for a small performance increase (Leaf check-in: 5e5d6e8680 user: drh tags: faster-OP_Column) | |
| 15:42 | Fix the header comment in sqlite3VdbeDeletePriorOpcode(). No changes to code. (check-in: 7fb1626866 user: drh tags: trunk) | |
| 15:00 | Ensure that the OP_Prev opcode verifies that content has not been deleted out from under the cursor. Fix for ticket [209d31e3161b9e9ff]. (check-in: 414f0d6a64 user: drh tags: trunk) | |
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2014-09-27
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| 20:45 | Change the names of the stream interface APIs to be of the form "_strm" instead of "_str". In other words, added an "m" to the end, to try to make it clear that we are talking about a "stream" and not a "string. (check-in: 1f44bfdc23 user: drh tags: sessions) | |
| 19:51 | Merge recent trunk changes (performance enhancements) into the sessions branch. (check-in: 497367cb57 user: drh tags: sessions) | |
| 18:18 | Fix a segfault in the sessions module that could follow an OOM. (check-in: 09985fa6b6 user: dan tags: sessions) | |
| 16:33 | Fix a segfault in the streaming API functions triggered by a very long table name. (check-in: d2642543ee user: dan tags: sessions) | |
| 12:26 | Improve sessions module documentation and comments. Fix some other code issues. (check-in: bfc8bd80f8 user: dan tags: sessions) | |
| 05:00 | Reduce the amount of memcpy() required by defragmentPage(). (check-in: 3edab9957c user: drh tags: defrag-opt) | |
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2014-09-26
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| 18:30 | Add an assert() to verify the last-row-id for the database just prior to calling a SQL function. (check-in: d026f0c944 user: mistachkin tags: trunk) | |
| 10:52 | Fix a problem with concatenating patchsets containing DELETE and INSERT operations on the same row. (check-in: 4d8537eafb user: dan tags: sessions) | |
| 02:41 | Fix the "PRAGMA integrity_check" command so that it avoids formatting error message context messages until it actually needs to generate an error message. This avoids much formatting, and hence greatly improves the performance of "PRAGMA integrity_check" in the common case when there are no errors. It also makes the code a little smaller. (check-in: 8391351583 user: drh tags: trunk) | |
| 01:10 | If an SQL function makes a recursive call to do an INSERT into the same database, make sure that the last_insert_rowid() for that INSERT is recorded. (check-in: e93aecc090 user: drh tags: trunk) | |
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2014-09-25
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| 20:43 | Add streaming version of sqlite3changeset_concat(). (check-in: 88eb6656bd user: dan tags: sessions) | |
| 17:42 | Minor code reformatting and comment change, to improve clarity. No logic changes. (check-in: baeb72a356 user: drh tags: trunk) | |
| 14:54 | Add streaming version of sqlite3changeset_invert() to sessions module. (check-in: 8ded6a4679 user: dan tags: sessions) | |
| 13:17 | Simplifications to the SQL function and aggregate calling procedures. (check-in: 3467049a17 user: drh tags: trunk) | |
| 12:31 | Simplification to the random rowid picking logic that begins running when the maximum possible rowid has already been used. (check-in: 1330c72e17 user: drh tags: trunk) | |
| 11:08 | Still more performance enhancements to the LIKE and GLOB operators. (check-in: 6c8924cacc user: drh tags: trunk) | |
| 03:51 | More performance optimization for the LIKE and GLOB operators. (check-in: 5ab1023d6c user: drh tags: trunk) | |
| 02:44 | Change that might allow SQLite to build and work using the EBCDIC character set. (check-in: ef30e0352b user: drh tags: trunk) | |
| 00:56 | Size reduction and performance improvement in the LIKE and GLOB operators. (check-in: b2c89ef49c user: drh tags: trunk) | |
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2014-09-24
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| 19:47 | Have each open database allocate its pTmpSpace when the first write cursor is opened, rather than on each insert or delete, for a small space savings and performance boost. (check-in: 99323552c0 user: drh tags: trunk) | |
| 18:31 | Small performance and size optimization for btreeUnlockIfUnused(). (check-in: 13c746f85d user: drh tags: trunk) | |
| 17:13 | Add streaming version of sqlite3changeset_apply(). Tests and fixes for the same and sqlite3changeset_start_str(). (check-in: b917fc1468 user: dan tags: sessions) | |
| 13:20 | Do not allow parameters in a DEFAULT clause of a CREATE TABLE statement. Ticket [78c0c8c3c9f7c1]. (check-in: 1ad2bc1ed4 user: drh tags: trunk) | |
| 04:38 | Experiment using linear interpolation, instead of a strict binary search, when looking for integer-keyed rows on a single b-tree page. The experiment was not successful. The number of key comparisons is reduced by about 15%, but the added complexity of the search logic causes an overall reduction in performance. The patch is saved for historical reference only. (Closed-Leaf check-in: c705cf856d user: drh tags: linear-interpolation) | |