Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
50 descendants and 50 ancestors of c3c15d20c6913811
|
2014-10-13
| ||
| 16:02 | Reduce the CPU load imposed by sqlit3VdbeCursorMoveto() by factoring out some of its functions and by avoiding unnecessary calls. (check-in: c2799aece1 user: drh tags: trunk) | |
| 13:00 | Remove the OPFLAG_CLEARCACHE flag from OP_Column. In its place, change the P3 parameter of OP_SorterData to be the index of the pseudo-table cursor whose record header cache is to be cleared. This gives a small size reduction and performance increase. (check-in: 20062f4942 user: drh tags: trunk) | |
| 12:30 | Use OP_SorterColumns in aggregate queries. Remove OPFLAG_CLEARCACHE. (Closed-Leaf check-in: 134e65c07f user: drh tags: OP_SorterColumns) | |
| 01:23 | Add the OP_SorterColumns opcode - an experiment in using a special case opcode to decode the Sorter output rather than the generic OP_Column. This might be faster. And with further work, it could eventually eliminate the need for OP_OpenPseudo. (check-in: b9c695e885 user: drh tags: OP_SorterColumns) | |
|
2014-10-12
| ||
| 22:37 | Remove the VdbeCursor.lastRowid cache of the current rowid, since maintaining the correct cache value uses more CPU cycles than just recomputing the rowid on the occasions when it is actually needed. Replace it with the VdbeCursor.aOffset field which used to be computed from VdbeCursor.aType when needed. Saves 100 bytes of code space and runs 0.2% faster. (check-in: 91384a7d72 user: drh tags: trunk) | |
|
2014-10-11
| ||
| 23:31 | Performance optimization and very slight size reduction for OP_Column. (check-in: 869c30e45c user: drh tags: trunk) | |
| 17:22 | Simplification to the insertCell() routine in btree.c, resulting in a performance boost and a very small size decrease. It turns out that the extra work involved in sometimes avoiding an memcpy() of the first four bytes of a record takes more time than just unconditionally copying those four bytes. (check-in: 66de15580d user: drh tags: trunk) | |
| 10:52 | Require the SQLITE_ENABLE_RTREE compile-time option in speedtest1.c in order to enable the R-Tree tests. (check-in: 5d29a033b0 user: drh tags: trunk) | |
| 02:12 | Make sure that a GROUP BY that also implements an ORDER BY scans the table in the correct order. Fix for ticket [ba7cbfaedc7e6]. (check-in: 7a32fdfd4b user: drh tags: trunk) | |
| 01:22 | Remove an unnecessary conditional from the EXPLAIN QUERY PLAN logic. (check-in: c5dc83ebde user: drh tags: trunk) | |
|
2014-10-10
| ||
| 20:52 | Account for the ASC/DESC properties of ORDER BY expressions when using the same index for GROUP BY and ORDER BY. Candidate fix for [ba7cbfaedc]. (Closed-Leaf check-in: 2a9573962b user: dan tags: experimental) | |
| 19:15 | Restrict the scope of the explainIndexRange() function in where.c. (check-in: c301245200 user: drh tags: trunk) | |
| 19:10 | Fix a failing test case in index5.test. Also tweak the way cache memory is divided between read-only and dirty pages when using SQLITE_CONFIG_PAGECACHE to reduce IO in some cases. (check-in: 8541dfb3bb user: dan tags: trunk) | |
| 18:09 | Changes to enable compiling using VC6. (check-in: 9ee5686ab3 user: drh tags: trunk) | |
| 17:47 | When using the -config option to releasetest.tcl, default the testing type to "fulltest" if it is not specified on the command line. (check-in: cf291cbe9f user: drh tags: trunk) | |
| 17:44 | Provide the new "-config CONFIG" option to the test/releasetest.tcl script, which allows one to run a single test configuration selected by name. (check-in: d479e32be2 user: drh tags: trunk) | |
| 17:20 | Add the estimated number of output rows to the EXPLAIN QUERY PLAN output if compiled with SQLITE_EXPLAIN_ESTIMATED_ROWS. This feature is off by default for the time being. (check-in: daa8314fba user: drh tags: trunk) | |
| 15:47 | Simplify the code used to generate the text for EXPLAIN QUERY PLAN. (check-in: beea1efc3a user: drh tags: trunk) | |
| 15:01 | Fix a potential problem in the whereRangeScanEst() routine when STAT4 is active. The problem was introduced by recent enhancements. (check-in: 68e1b4de70 user: drh tags: trunk) | |
| 13:08 | Cause the command-line shell to return non-zero if the final SQL statement is incomplete. (check-in: 177fff3b98 user: drh tags: trunk) | |
| 12:56 | Merge all recent trunk changes. (check-in: abfef25472 user: drh tags: sessions) | |
|
2014-10-09
| ||
| 15:08 | Allow FTS tokenizers to choose whether or not to consider the "*" character part of tokens or not. This restores the pre-[e21bf7a2ad] behaviour. Also fix a problem causing FTS to interpret tokens beginning with "*" characters as EOF. (check-in: 49dfee7cd1 user: dan tags: trunk) | |
| 14:10 | Add a test case for the memory leak fixed by the previous check-in. (check-in: bae36d5446 user: drh tags: trunk) | |
| 14:00 | Fix a memory leak associated with the FTS4 matchinfo() function. (check-in: fb8da82411 user: drh tags: trunk) | |
| 11:40 | Record the errno on fstat() failures. (check-in: 2a6a082001 user: drh tags: apple-osx) | |
| 11:27 | Merge the latest trunk enhancements into the apple-osx branch. (check-in: 6fc7207727 user: drh tags: apple-osx) | |
|
2014-10-08
| ||
| 19:33 | Remove an always-true branch in whereRangeScanEst(). Replace it with an assert(). (check-in: 42e48fd3a6 user: drh tags: trunk) | |
| 15:53 | Fix up test cases to account for the new SQLITE_LIMIT_WORKER_THREADS limit. (check-in: 6483d426c4 user: drh tags: trunk) | |
| 14:28 | Set the connection-specific lastRowid value before calling any SQL function. (check-in: dff0f6422e user: drh tags: trunk) | |
| 13:34 | Ensure that the Pager.pTmpSpace allocation is correct even if an OOM error occurs while reducing the page size. (check-in: e4b43967fd user: drh tags: trunk) | |
| 11:11 | Remove some temporary code in mallocA.test that was accidentally checked in. (check-in: dedd15f7cd user: dan tags: trunk) | |
| 02:53 | Fix the STAT4 range scan estimates for DESC indexes. (check-in: e3fe840052 user: drh tags: trunk) | |
| 00:08 | More intuitive labels on ".wheretrace" output. (check-in: adcb3fed48 user: drh tags: trunk) | |
|
2014-10-07
| ||
| 23:02 | Make sure the sqlite3VdbeMemClearAndResize() routine is never called with a zero size parameter, since a size of zero could lead to either a memory leak or an assertion fault. (check-in: f672a380e2 user: drh tags: trunk) | |
| 20:09 | Fix the corruptI.test script so that it works with SQLITE_ENABLE_OVERSIZE_CELL_CHECK and with SQLITE_DEFAULT_AUTOVACUUM=1. (check-in: e405b9e4a9 user: drh tags: trunk) | |
| 16:59 | Restrict the scope of the valueToText() routine. (check-in: 13c962b33d user: drh tags: trunk) | |
| 15:46 | Enhance (and fix) the MEMTYPE tags associated with heap memory allocations when SQLITE_MEMDEBUG is used. (check-in: ca5b789e33 user: drh tags: trunk) | |
|
2014-10-06
| ||
| 18:33 | Remove unreachable branches in decodeIntArray() when compiling without STAT3 or STAT4. (check-in: 80e1baa5c2 user: drh tags: trunk) | |
| 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) | |
|
2014-10-04
| ||
| 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) | |
|
2014-10-03
| ||
| 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) | |
|
2014-10-02
| ||
| 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) | |
|
2014-10-01
| ||
| 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) | |
|
2014-09-30
| ||
| 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) | |
|
2014-09-29
| ||
| 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) | |
|
2014-09-26
| ||
| 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) | |
| 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) | |
|
2014-09-25
| ||
| 17:42 | Minor code reformatting and comment change, to improve clarity. No logic changes. (check-in: baeb72a356 user: drh tags: trunk) | |
| 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) | |
|
2014-09-24
| ||
| 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) | |
| 13:20 | Do not allow parameters in a DEFAULT clause of a CREATE TABLE statement. Ticket [78c0c8c3c9f7c1]. (check-in: 1ad2bc1ed4 user: drh tags: trunk) | |
| 02:05 | Have the clearCell() routine return the cell size to the caller, rather than have the caller make a separate call to cellSizePtr(). (check-in: f21d217583 user: drh tags: trunk) | |
| 01:23 | Shorten all lines of source code in btree.c to at most 80 characters. No logical changes. (check-in: 5dd41cdbfe user: drh tags: trunk) | |
| 00:59 | Add the MemPage.noPayload boolean and use it to help cellSizePtr() and btreeParseCellPtr() run faster. (check-in: 8e3375313e user: drh tags: trunk) | |
|
2014-09-23
| ||
| 23:12 | Remove an unused C-preprocessor macro. No functional changes to the code. (check-in: f480582cca user: drh tags: trunk) | |
| 22:36 | Avoid calling btreeParseCellPtr() from within fillInCell() since most of what btreeParseCellPtr() computes is ignored by fillInCell(). Instead, have fillInCell() compute the values it needs inline. Performance improvement. (check-in: 4147f6671e user: drh tags: trunk) | |
| 21:25 | Simplify the CellInfo structure for a size reduction and performance improvement. (check-in: bf59df66b3 user: drh tags: trunk) | |
| 18:30 | Add the "multiplex_truncate" PRAGMA to the multiplexor extension, for querying and setting the truncate flag on a database connection. (check-in: d2962a5f38 user: drh tags: trunk) | |
| 01:40 | Adjust skip-scan cost estimates slightly so that a full table scan is preferred over a skip-scan to a column with only two distinct values. (check-in: ae9a42b268 user: drh tags: trunk) | |
|
2014-09-22
| ||
| 20:38 | Fix to payload size overflow detection in the cellSizePtr() change of the previous check-in. (check-in: 7609744014 user: drh tags: trunk) | |
| 19:51 | Size reduction and substantial performance increase for cellSizePtr(). (check-in: bc8bbf3207 user: drh tags: trunk) | |
| 14:30 | Tune the query planner to be more aggressive about using automatic indexes on views and subqueries for which there is not opportunity to declare a persistent schema index. (check-in: 41de1643bf user: drh tags: trunk) | |
| 03:22 | Disable shared memory operations using the unix-nolock VFS. (check-in: 10a6e51049 user: drh tags: trunk) | |
|
2014-09-21
| ||
| 22:31 | Correctly handle an ORDER BY clause on an outer query when applying the compound-subquery flattening optimization. Ticket [d11a6e908f]. Also add the SQLITE_ENABLE_SELECTTRACE option for additional debugging and analysis information about select statement processing. (check-in: d5880abd63 user: drh tags: trunk) | |
| 20:31 | Add test cases for ticket [d11a6e908f]. (Closed-Leaf check-in: 9683e001ed user: drh tags: select-trace) | |
| 17:51 | Add the "showauth" extension in ext/misc. (check-in: 28d52c1c38 user: drh tags: select-trace) | |
| 00:27 | Improved ".selecttrace" output. (check-in: c0b61f7092 user: drh tags: select-trace) | |
|
2014-09-20
| ||
| 20:38 | Candidate fix for [d11a6e908f]. (check-in: 89398880bc user: dan tags: select-trace) | |
| 20:24 | Fix the SELECTTRACE_ENABLE macro so that it doesn't cause problems for testfixture. Add new SELECTTRACE() calls. (check-in: f1ba68f131 user: drh tags: select-trace) | |
| 18:18 | Enable SELECT query planning tracing when compiled with SQLITE_ENABLE_SELECTTRACE and either SQLITE_DEBUG or SQLITE_TEST. (check-in: cbe0cf9ddf user: drh tags: select-trace) | |
| 00:35 | Fix the usage of the _GNU_SOURCE and _BSD_SOURCE macros in the main internal header file, sqliteInt.h. Set HAVE_STRCHRNUL to 1 by default on Linux only. (check-in: 59e2c9df02 user: drh tags: trunk) | |
| 00:29 | Only enable HAVE_STRCHRNUL by default on linux, as that is the only place it appears to work by default. (Closed-Leaf check-in: 0fac2c045f user: drh tags: sqliteIntMacros) | |
| 00:02 | Revise macro usage in 'sqliteInt.h'. (check-in: 35db3e2f35 user: mistachkin tags: sqliteIntMacros) | |
|
2014-09-19
| ||
| 22:44 | Simplify two conditionals and add testcase() macros to the affinity transform logic in the comparison operators. (check-in: 544664cadf user: drh tags: trunk) | |
| 22:30 | Recognize the invariant that a Mem object cannot be MEM_Dyn and have a non-zero szMalloc at the same time. Enforce this with assert()s and exploit it in the sqlite3VdbeMemClearAndResize() routine for a performance increase. (check-in: 3b21cf2b28 user: drh tags: trunk) | |
| 22:01 | Tighten the conditions under which applyNumericAffinity() be called and add assert() statements to prove that it is never called otherwise. (check-in: e996ca32cb user: drh tags: trunk) | |
| 20:13 | Fix the affinity on inserts into the ANALYZE tables. Change the affinity characters to be upper case, to make the P5 parameter of comparison operators easier to read. (check-in: 3f3ca76aea user: drh tags: trunk) | |
| 19:43 | Do not attempt to extend the temp file if VFS version 3 is not supported and hence memory mapped I/O is unavailable. (check-in: 3ab20ba14f user: drh tags: trunk) | |
| 19:00 | Make the "nolock" VFS on unix a version-3 VFS so that the sorter can use memory-mapped I/O. (check-in: 3db78d6100 user: drh tags: trunk) | |
| 16:56 | Remove a local variable from the OP_Column implementation, resulting in a modest size reduction and a performance increase. (check-in: 6199760d13 user: drh tags: trunk) | |