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91 check-ins for the month beginning 2016-09-01 by user drh
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2016-09-30
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| 22:24 | Avoid initializing the column-cache section of the Parse object, since entries in the cache will be initialized as they are used, and avoiding the initial memset() saves many CPU cycles. (check-in: 63cf7eafae user: drh tags: trunk) | |
| 21:20 | Fix an always-true conditional left over from the previous commit. (check-in: ab12fce331 user: drh tags: trunk) | |
| 20:22 | Fix the Parse.aColCache column cache so that all of the valid entries are in the first Parse.nColCache slots. (check-in: 6028502059 user: drh tags: trunk) | |
| 19:14 | Another simplification to the Parse object. (check-in: c1419727f5 user: drh tags: trunk) | |
| 18:35 | Remove unnecessary fields from the Parse object. (check-in: 814e41da35 user: drh tags: trunk) | |
| 17:46 | Avoid unnecessary Mem initializations when generating a new sqlite3_stmt object. (check-in: 47ae1cda8d user: drh tags: trunk) | |
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2016-09-29
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| 20:28 | Small size and performance optimization to sqlite3VdbeChangeP5(). (check-in: 3c93c8f5bb user: drh tags: trunk) | |
| 19:50 | Remove the peep-hole optimization of removing OP_Close opcodes that come before OP_Halt, as the extra work of removing those opcodes uses more cycles than just running them. (check-in: 984a96d796 user: drh tags: trunk) | |
| 19:27 | Size and performance optimization to sqlite3ValueFromExpr() (check-in: 945f82bc44 user: drh tags: trunk) | |
| 15:53 | Clarification and typo-fixes in comments. No changes to code. (check-in: e2cd79aa31 user: drh tags: trunk) | |
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2016-09-28
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| 20:42 | Use Knuth multiplicative hashing for the symbol table. (check-in: cc29ddd6be user: drh tags: trunk) | |
| 16:15 | Merge recent enhancements from trunk. (check-in: 0601416347 user: drh tags: apple-osx) | |
| 16:05 | Two more typo fixes in comments. (check-in: 40c0fb0af6 user: drh tags: trunk) | |
| 16:04 | Fix typos in comments. No code changes. (check-in: 5bbd071d57 user: drh tags: trunk) | |
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2016-09-27
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| 00:09 | Update requirements marks due to improvements in the wording of documentation. No changes to code. (check-in: bf903b2eca user: drh tags: trunk) | |
| 00:03 | Fix FTS3 test cases due to the flattener change of the previous check-in. (check-in: 0c8b9b211f user: drh tags: trunk) | |
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2016-09-26
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| 12:38 | Inline the relevent parts of sqlite3ExprAlloc() into spanExpr(), for a performance improvement. (check-in: fe89225eab user: drh tags: trunk) | |
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2016-09-24
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| 17:42 | Omit the LikeOp object from the parser. Change more sqlite3PExpr() calls into sqlite3ExprAlloc() calls. (check-in: 795454a3fa user: drh tags: trunk) | |
| 01:41 | Add -DSQLITE_MAX_EXPR_DEPTH=0 to the --lean option on speed-check.sh. (check-in: a8cb1390fc user: drh tags: trunk) | |
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2016-09-23
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| 21:36 | Add the EP_Leaf flag bit to the Expr.flags field to indicate Expr nodes that do not have substructure. Use that bit to avoid unnecessary recursion. (check-in: 8a6ea455cd user: drh tags: trunk) | |
| 20:59 | Use sqlite3ExprAlloc() instead of sqlite3PExpr() for leaf nodes in the expression tree, where appropriate. This is both smaller and faster. (check-in: afac0709ce user: drh tags: trunk) | |
| 18:13 | New test case for the ORDER BY LIMIT optimization. (check-in: 9a5a489d0d user: drh tags: trunk) | |
| 18:06 | Fix the ORDER BY LIMIT optimization backport so that it works when the ORDER BY uses the DESC direction. (check-in: 0c3cafb7eb user: drh tags: branch-3.8.9) | |
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2016-09-22
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| 21:37 | Fix a potential null-pointer dereference and crash in the case where one thread is calling sqlite3_column_text() and another thread is calling sqlite3_step() on the same prepared statement at the same instant. (check-in: ee1382a363 user: drh tags: trunk) | |
| 18:53 | Remove the internal sqlite3CodeOnce() interface, replacing it with a direct call to sqlite3VdbeAddOp0(v,OP_Once). Slightly smaller and faster. (check-in: c3774c6a5f user: drh tags: trunk) | |
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2016-09-21
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| 23:58 | Fix speedtest1.c so that it works with SQLITE_OMIT_DEPRECATED. Add the --lean and --cachesize options to speed-check.sh. (check-in: 7785b3a257 user: drh tags: trunk) | |
| 18:18 | Fix obsolete requirements marks. Add new tests for VACUUM of attached databases. (check-in: 2b44f9aa7d user: drh tags: trunk) | |
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2016-09-20
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| 22:04 | Improved implementation of 64-bit signed integer multiply that correctly detects overflow (and promotes to floating-point) in some corner cases. Fix for ticket [1ec41379c9c1e400] (check-in: db3ebd7c52 user: drh tags: trunk) | |
| 01:46 | Further performance enhancements in zeroblob() handling. (check-in: 21b0e3b75c user: drh tags: trunk) | |
| 01:19 | Avoid unnecessary calls to ExpandBlob() for smaller and faster code. (check-in: 5e196fd181 user: drh tags: trunk) | |
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2016-09-19
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| 23:39 | Very small optimization in the bytecode engine. (check-in: 46002511e5 user: drh tags: trunk) | |
| 11:00 | Fix a segfault introduced by the row-value enhancement that comes up on a skip-scan where the first term of the index is unconstrained and the second term is of the form "columm IN (SELECT...)". (check-in: 2401ea5acf user: drh tags: trunk) | |
| 10:24 | Improved performance in sqlite3ExprCodeTarget(). (check-in: 75146165dc user: drh tags: trunk) | |
| 02:19 | Small performance optimization in the expression walker. (check-in: c6e6afb939 user: drh tags: trunk) | |
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2016-09-18
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| 16:08 | Revise the implementation of OP_Once so that it is smaller, faster, and uses less memory. This also fixes an obscure bug introduced 3 days ago by check-in [5990a1bdb4a073]. (check-in: 6bf5ba10d2 user: drh tags: trunk) | |
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2016-09-17
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| 19:34 | Small performance optimization in the freeSpace() routine of btree.c. (check-in: 63962e2a92 user: drh tags: trunk) | |
| 17:39 | Improved description of the ElseNotEq opcode in comments. No changes to code. (check-in: e011435e2f user: drh tags: trunk) | |
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2016-09-16
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| 19:42 | If no KEY is specified on ATTACH, copy the main schema key if the key size is non-zero. In other words, allow for -1 as a valid key size in support of the --textkey to SEE. (check-in: 03573887db user: drh tags: trunk) | |
| 19:11 | Fix problems with the fileRead() function in the command-line shell. Fix a harmless memory leak in the command-line shell, to make validation testing easier. (check-in: e660402e5e user: drh tags: trunk) | |
| 18:53 | Remove the #ifdef SQLITE_DEBUG from around the testcase_glob() routine in the command-line shell. (check-in: 9885dac4b9 user: drh tags: trunk) | |
| 17:50 | Merge recent changes from trunk. (check-in: e3d9efa277 user: drh tags: apple-osx) | |
| 15:42 | Replace a faulty assert() with a testcase() to assure the condition is tested. Ticket [0eab1ac7591f]. (check-in: a49bc0a824 user: drh tags: trunk) | |
| 14:50 | Add WHERETRACE macros showing every entry and exit from whereLoopAddBtreeIndex(). (check-in: e7653decdc user: drh tags: trunk) | |
| 11:53 | Fix SQLITE_OMIT_AUTHORIZATION so that it compiles cleanly. (check-in: a3e3b3e1c5 user: drh tags: trunk) | |
| 02:52 | In the shell, make ".testcase" and ".check" available in all configurations, not just SQLITE_DEBUG. All testcases to be named. Show the result of each testcase on stdout. (check-in: 792afefa9c user: drh tags: trunk) | |
| 00:26 | In the command-line shell, add the --new option to the ".open" command. Also, report the current database filename as part of the ".show" command. (check-in: 8e5c920391 user: drh tags: trunk) | |
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2016-09-15
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| 21:35 | Add the ".testcase" and ".check" dot-commands in the shell, when compiled using SQLITE_DEBUG. (check-in: 62289f27ee user: drh tags: trunk) | |
| 19:15 | Omit the sqlite3Apis constant object when compiling with SQLITE_OMIT_LOAD_EXTENSION, since it is not used. (check-in: 7b10461370 user: drh tags: trunk) | |
| 14:54 | Remove no-op code (adding an assert() to prove that the code was no-op) in the text affinity logic of the bytecode engine comparison operators. (check-in: b9f5bdbf40 user: drh tags: trunk) | |
| 00:32 | Slight size reduction and performance increase in sqlite3VdbeHalt(). (check-in: 5990a1bdb4 user: drh tags: trunk) | |
| 00:04 | Optimization to vdbeRecordCompareInt() makes it slightly smaller and faster. (check-in: 5a2a7712cb user: drh tags: trunk) | |
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2016-09-14
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| 18:56 | Update comments used to generate API documentation to include the new "[dateof:3.X.Y]" notation for dates of release where appropriate. No changes to code. (check-in: 55f7f8ee5b user: drh tags: trunk) | |
| 01:43 | Backport the ORDER BY LIMIT optimization to version 3.8.9. (check-in: db3614825f user: drh tags: branch-3.8.9) | |
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2016-09-12
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| 18:50 | Version 3.14.2 (check-in: 29dbef4b85 user: drh tags: release, branch-3.14, version-3.14.2) | |
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2016-09-10
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| 19:51 | Changes to give a warning-free build with SQLITE_OMIT_INCRBLOB and SQLITE_OMIT_SHARED_CACHE. (check-in: 711c59171b user: drh tags: trunk) | |
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2016-09-09
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| 20:23 | Remove an unnecessary call to sqlite3VdbeMemExpandBlob() when casting to text. (check-in: 19e2e59505 user: drh tags: trunk) | |
| 19:33 | Performance improvements to the comparison operators in the bytecode engine. (check-in: 37803b19d2 user: drh tags: trunk) | |
| 15:12 | Fix a out-of-order variable declaration for some compile-time configurations. (check-in: 6ac932c92a user: drh tags: trunk) | |
| 13:23 | In releasetest.tcl, the --srcdir option is automatic, so no need to mention it in the --help output. (check-in: 2bdd838e2c user: drh tags: trunk) | |
| 13:17 | Fix an obsolete comment in the releasetest.tcl source code. (check-in: afaaa276b2 user: drh tags: trunk) | |
| 12:29 | In releasetest.tcl: Improved testing for uncommitted changes. If uncommitted changes are seen, exit immediately unless the --force option is used. (check-in: 9a14e6c46c user: drh tags: trunk) | |
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2016-09-08
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| 23:12 | Issue a warning and prompt the user to continue if the releasetest.tcl script is run in a checkout with uncommitted changes. (check-in: 30e917fff0 user: drh tags: trunk) | |
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2016-09-07
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| 19:54 | Add support for row-value comparisons, including IN operators, and row-value updates in the UPDATE statement. (check-in: ddb5f0558c user: drh tags: trunk) | |
| 18:20 | Merge recent enhancements from trunk. (check-in: 00759af053 user: drh tags: apple-osx) | |
| 18:11 | Add the ext/misc/memvfs.c extension that implements a VFS for read-only database files contained in memory. (check-in: 12b7782a9a user: drh tags: trunk) | |
| 13:30 | Simplify the affinity handling logic in codeAllEqualityTerms(). Logically the same, just a little easier to read and understand. (check-in: bbab9621f5 user: drh tags: rowvalue) | |
| 13:20 | Fix the ".read" command in the command-line shell so that it understands that the input is not interactive. (check-in: 7c2c0d1dce user: drh tags: branch-3.14) | |
| 13:12 | Merge fixes from trunk. (check-in: 193f036c87 user: drh tags: rowvalue) | |
| 12:47 | Version number to 3.14.2. (check-in: 925ef2f915 user: drh tags: branch-3.14) | |
| 12:41 | Makefile changes to support building winsqlite3.dll using STDCALL rather than CDECL. (check-in: af951e036e user: drh tags: branch-3.14) | |
| 12:20 | Correct affinity computations for a SELECT on the RHS of an IN operator. Fix for ticket [199df4168c]. (check-in: 2d1983ff9f user: drh tags: branch-3.14) | |
| 12:08 | The ORDER BY LIMIT optimization is not valid unless the inner-most IN operator loop is actually used by the query plan. Fix for ticket [0c4df46116e90f92]. (check-in: b4f8be1f32 user: drh tags: branch-3.14) | |
| 11:27 | Fix a problem in internal function sqlite3OpenTableAndIndices causing an operand of an unrelated VM instruction to be overwritten. Fix for [ef360601]. (check-in: e5c30f227b user: drh tags: branch-3.14) | |
| 10:10 | Fix the ".read" command in the command-line shell so that it understands that the input is not interactive. (check-in: d8451fe84d user: drh tags: trunk) | |
| 01:51 | The ORDER BY LIMIT optimization is not valid unless the inner-most IN operator loop is actually used by the query plan. Fix for ticket [0c4df46116e90f92]. (check-in: 820644b886 user: drh tags: trunk) | |
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2016-09-06
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| 19:08 | Remove obsolete vector-IN test cases. Fix a bad testcase() macro. (check-in: ab3f8f193a user: drh tags: rowvalue) | |
| 18:51 | Fix corer cases of vector IN operators where the RHS is a compound SELECT that includes an ORDER BY clause. (check-in: 8329ac6f8d user: drh tags: rowvalue) | |
| 17:13 | Avoid unnecessary memory allocations for aiMap in codeEqualityTerm(). (check-in: 70319c3d76 user: drh tags: rowvalue) | |
| 16:53 | Avoid a NULL pointer deref in codeAllEqualityConstraints() following an OOM. (check-in: c6e528c1c0 user: drh tags: rowvalue) | |
| 15:25 | Fix the header comment on codeEqualityTerm(). (check-in: b7e710e406 user: drh tags: rowvalue) | |
| 14:37 | Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg() when nReg==1. (check-in: 4071da2f87 user: drh tags: rowvalue) | |
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2016-09-05
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| 22:50 | Simplified logic to extract a column from a row value. (check-in: e8f105c300 user: drh tags: rowvalue) | |
| 19:57 | Fix an assert() so that it does C-compiler does not combine an assert() conditional with a production code conditional and thereby confuse the mutation testing script. (check-in: 2fa5288a7e user: drh tags: rowvalue) | |
| 15:02 | Simplifications to the SQLITE_KEEPNULL flag on VDBE comparison operators. (check-in: 96269f0179 user: drh tags: rowvalue) | |
| 12:12 | Do vector comparison size checking early - at name resolution time - to forestall future problems. (check-in: ae127bcc0a user: drh tags: rowvalue) | |
| 12:02 | Catch vector size mismatch problems during name resolution to avoid later problems. (Closed-Leaf check-in: 56562a0346 user: drh tags: early-vector-size-check) | |
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2016-09-03
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| 16:24 | Merge the fuzzershell enhancement from trunk. (check-in: ed20604848 user: drh tags: rowvalue) | |
| 16:23 | Build the generate_series(START,END,STEP) table-valued function into fuzzershell, to make it easier to construct compact test cases that contain actual data. (check-in: 672c21bcf0 user: drh tags: trunk) | |
| 01:46 | Performance optimizations. (check-in: f1d06c49ba user: drh tags: rowvalue) | |
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2016-09-02
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| 23:56 | Merge recent changes from trunk. (check-in: c7271fbde1 user: drh tags: rowvalue) | |
| 21:17 | Correctly detect an OOM occurring in the setDestPgsz() subroutine of backup. (check-in: d9d8a048d4 user: drh tags: trunk) | |