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50 check-ins occurring around 2a81763e68cdf9b8.
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2016-12-12
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| 01:53 | Updates to the tokenizer for EBCDIC. No changes for standard builds. (check-in: 4fc6580ffa user: drh tags: trunk) | |
| 01:30 | Size and performance optimization in btreeInitPage() in the freeblock validation step. (check-in: 57deb1b412 user: drh tags: trunk) | |
| 00:58 | Change the order of comparison for divider cell overflow in balance non-root to avoid a (harmless) reference to an uninitialized variable. (check-in: f9f2e23bbd user: drh tags: trunk) | |
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2016-12-10
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| 13:12 | Avoid an unnecessary memset() in the sqlite3BtreeInsert() routine. (check-in: 35ecd4ebc5 user: drh tags: trunk) | |
| 12:58 | Reorder the fields in the VdbeCursor object so that those that need to be bulk zeroed on allocation are grouped at the beginning, and the memset() only runs over those fields that really need it. (check-in: 8165f88bb1 user: drh tags: trunk) | |
| 04:06 | Avoid signed integer overflow when dealing with a LIMIT and OFFSET whose sum exceeds the maximum integer value. (check-in: c9bdf7adb4 user: drh tags: trunk) | |
| 00:14 | In balance_nonroot, try to combine dropCell/insertCell combinations for the dividers into a cell overwrites. This results in a very small (0.05%) performance gain which is probably not worth the added complexity. (Closed-Leaf check-in: 478627c9e9 user: drh tags: failed-dropCell-opt) | |
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2016-12-09
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| 19:42 | When doing the sqlite3BtreeInsert() overwrite optimization, make sure the memcpy() does not extend off the end of the page. (check-in: 684ef4582e user: drh tags: trunk) | |
| 18:09 | Additional comments and an assert on the sqlite3BtreeInsert() overwrite optimization. (check-in: c1f0ae9d29 user: drh tags: trunk) | |
| 17:32 | In sqlite3BtreeInsert() when replacing a re-existing row, try to overwrite the cell directly rather than deallocate and reallocate the cell. (check-in: 0b86fbca66 user: drh tags: trunk) | |
| 16:12 | Fix an fts5 bug that could cause a crash following an OOM error or sqlite3_interrupt() interrupt. (check-in: 0ea3ece988 user: dan tags: trunk) | |
| 16:02 | Avoid unnecessary zeroing of fields in the MemPage object that are going to be reinitialized before use anyhow. A smaller and faster binary results. (check-in: 01ada3d106 user: drh tags: trunk) | |
| 00:15 | Fix an obscure problem in range estimation with STAT4. (check-in: 1f16c9a76b user: drh tags: trunk) | |
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2016-12-08
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| 23:52 | Fix the showstat4 utility program so that is displays strings using standard SQL notation (single quotes) rather than C-style notation. (check-in: 92998e4afb user: drh tags: trunk) | |
| 19:04 | Fix a minor error in the cg_anno.tcl script causing the cycles-per-file counts to be miscomputed. (check-in: b26df26e18 user: drh tags: trunk) | |
| 18:36 | Update the tool/cg_anno.tcl script to give a summary of cycle counts by canonical source file name. (check-in: 254a83bf30 user: drh tags: trunk) | |
| 01:38 | More changes to take advantage of the sqlite3VdbeAppendP4() method. (check-in: 83bc5e40af user: drh tags: trunk) | |
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2016-12-07
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| 21:35 | Add the sqlite3VdbeAppendP4() method for adding P4 content to the most recently coded instruction. (check-in: 28883e8f3e user: drh tags: trunk) | |
| 20:22 | The use P4_DYNAMIC in place of the P4_MPRINTF operand type. (check-in: 3954f83798 user: drh tags: trunk) | |
| 20:09 | Performance optimization for sqlite3VdbeAddOp4(). (check-in: 04716c907b user: drh tags: trunk) | |
| 17:06 | Put the SQLITE_UNTESTABLE compile-time option in the correct order for PRAGMA compile_options. (check-in: 24574a15a3 user: drh tags: trunk) | |
| 15:49 | Rename the SQLITE_OMIT_BUILTIN_TEST compile-time option to SQLITE_UNTESTABLE. (check-in: f360818737 user: drh tags: trunk) | |
| 15:38 | Prevent the flattening or where-term push-down optimizations from obscuring misuses of SQL row values that can lead to crashes or assert() failures. (check-in: 433d16ff3a user: dan tags: trunk) | |
| 13:49 | Always honor the sqlite3.dbOptFlags bitmask, regardless of compile-time options. Continuing fix for ticket [da78413751863]. (check-in: afab166313 user: drh tags: trunk) | |
| 07:46 | Merge latest trunk changes into this branch. (Leaf check-in: 391344d88a user: dan tags: changebatch) | |
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2016-12-06
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| 22:47 | Performance improvement and size reduction in the Expr node allocator function sqlite3PExpr(). (check-in: 2a81763e68 user: drh tags: trunk) | |
| 19:33 | Add missing nul-terminator to a Tcl_AppendResult() call in tclsqlite.c. (check-in: 0820f8b3de user: dan tags: trunk) | |
| 17:59 | In the LEMON parser-generator, fix the stack overflow processing so that it correct invokes the destructor on the top-level of the parse stack. (check-in: e8247065cf user: drh tags: trunk) | |
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2016-12-05
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| 20:16 | Fix a harmless redundant local variable declaration in the date/time function logic. (check-in: b4bc40d183 user: drh tags: trunk) | |
| 20:06 | Work around a bug in the definition of "ino_t" on some versions of Android. (check-in: 8df492c171 user: drh tags: trunk) | |
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2016-12-02
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| 19:07 | Simplify the date/time function logic for improved rebustness and also to decrease the size of the binary. (check-in: 6e144735ed user: drh tags: trunk) | |
| 17:08 | Extend the valid range of 'unixepoch' dates from JulianDay 0 through 9999-12-31. (check-in: 768c9859b2 user: drh tags: trunk) | |
| 14:15 | Fix a potential integer overflow during out-of-bound date computations. (Closed-Leaf check-in: 3c58b173d9 user: drh tags: date-overflow-fix) | |
| 02:19 | Test cases for the improved LIKE/GLOB matcher. (check-in: 0bdb7ae126 user: drh tags: trunk) | |
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2016-12-01
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| 19:58 | Avoid clearing the EP_FromJoin flag from terms in ON clauses when flattening sub-selects. Possible fix for [2df0107b]. (check-in: a427c40528 user: dan tags: trunk) | |
| 19:38 | Avoid clearing the EP_FromJoin flag from terms in ON clauses when flattening sub-selects. Possible fix for [2df0107b]. (Closed-Leaf check-in: 8bed4cd549 user: dan tags: left-join-fix) | |
| 18:57 | Performance improvement for GLOB and LIKE matching for patterns with two or more multi-character wildcards ("*" or "%"). (check-in: 2df0ebf95f user: drh tags: trunk) | |
| 18:49 | Faster version of patternCompare() that uses new return values rather than an extra parameter to communicate wildcard information back up to parent searches. (Closed-Leaf check-in: a1e2b6ce3a user: drh tags: pattern-compare-optimization) | |
| 17:34 | Modify the patternCompare() function (used for GLOB, LIKE) to better handle patterns containing multiple wildcard characters ("*", "%"). (check-in: c5e5614d98 user: dan tags: pattern-compare-optimization) | |
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2016-11-30
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| 16:54 | Add the remember(V,PTR) extension function which copies an SQL value into an application variable. (check-in: d2d30914d8 user: drh tags: trunk) | |
| 16:39 | Merge all the latest changes from trunk. (check-in: 7ca58a07d3 user: drh tags: est_count_pragma) | |
| 14:47 | Fix then handling of the (oversized) integer literal -0x8000000000000000. (check-in: 3816bb415e user: drh tags: trunk) | |
| 05:08 | Change the OP_DecrJumpZero opcode back to its old behavior of always decrementing, except top the decrementing when it reaches the largest negative number. (check-in: 9d0d8c2e7c user: drh tags: trunk) | |
| 04:07 | More improvements to boundary cases in the date/time functions, flowing out of branch coverage testing. (check-in: 1218005ab7 user: drh tags: trunk) | |
| 01:05 | Prevent a warning about integer overflow when using a very large negative LIMIT. (check-in: 96106d5620 user: drh tags: trunk) | |
| 00:48 | Further changes to the date/time functions to suppress harmless signed integer overflow warnings that could have occurred when doing out-of-range date calculations which, according to the docs, give undefined results. (check-in: dc453b3403 user: drh tags: trunk) | |
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2016-11-29
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| 20:39 | The documentation says that the built-in date-time functions give undefined results for dates before 0000-01-01 and after 9999-12-31. Change the actually implementation so that the answer given is really NULL. This also avoids unnecessary hand-wringing over an signed integer overflow that might otherwise occur when processing out-of-bound dates. (check-in: d410a83975 user: drh tags: trunk) | |
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2016-11-28
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| 21:22 | Fix broken hyperlinks to the sqlite3_snapshot objection definition in the documentation. No changes to code. (check-in: 9021f6875f user: drh tags: trunk) | |
| 19:13 | Version 3.15.2 (Leaf check-in: bbd85d235f user: drh tags: release, version-3.15.2, branch-3.15) | |
| 14:52 | Simplify some code in fts5_expr.c. Add some extra test cases for the same. (check-in: 7cc2d60dce user: dan tags: trunk) | |