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81 check-ins using file src/pager.c version d034c69b95
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2017-06-01
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| 16:13 | Add test code for LSM to the ext/lsm1/lsm-test directory. (check-in: bb7436e84a user: dan tags: lsm-vtab) | |
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2016-03-04
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| 04:01 | Change the default cache_size to -2000 (which means 2000*1024 bytes independent of page_size). (check-in: 2682e8e413 user: drh tags: trunk) | |
| 03:43 | Change the default page size for new database files to 4096 (from 1024). Except, when building the testfixture, preserve the legacy page size. Also fix a comment on SQLITE_MAX_ATTACHED. (check-in: 2e8a9ca9d3 user: drh tags: trunk) | |
| 03:20 | Detect the presence of pread()/pwrite() system calls on unix systems and use them if available. (check-in: 82cbf5ad2e user: drh tags: trunk) | |
| 03:14 | Further fixes to the pread()/pwrite() enabling logic. (Closed-Leaf check-in: 38fb54e785 user: drh tags: pread) | |
| 03:02 | Fix the build for cases when pread()/pwrite() are not available. (check-in: 7d67d876b7 user: drh tags: pread) | |
| 02:59 | Add the test_bestindex.c file to Makefile.in and Makefile.msc so that "make test" will work again. (check-in: 6ec6b6a97e user: drh tags: trunk) | |
| 02:38 | Update the configure script to detect pread/pwrite and update os_unix.c to use those routines if they are available. (check-in: 2cffb9e50b user: drh tags: pread) | |
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2016-03-03
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| 21:22 | Reduce the amount of heap memory required to store many schemas by storing the column datatype appended to the column name (with a \000 separator), rather than in separate memory allocation. (check-in: 16fbf2e19c user: drh tags: trunk) | |
| 20:42 | Allow the left-hand side of IN operators on virtual tables to have the aConstraintUsage[].omit flag clear. (check-in: 3eb7434274 user: drh tags: trunk) | |
| 17:54 | Merge 3.11.1 changes into trunk. (check-in: 7abc2dd953 user: drh tags: trunk) | |
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2016-03-02
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| 17:57 | Add new test script bestindex1.test to the utf16 permutation. (Closed-Leaf check-in: 5893e97244 user: dan tags: vtab-IN-opt) | |
| 16:13 | Add an extra test for the change on this branch. (check-in: d2d2825156 user: dan tags: vtab-IN-opt) | |
| 16:01 | Enhance test_bestindex.c so that it can be used to test plans generated by xBestIndex. (check-in: 3c15a9bf45 user: dan tags: trunk) | |
| 03:28 | Allow the left-hand side of IN operators on virtual tables to have the aConstraintUsage[].omit flag clear. (check-in: 1622623cbb user: drh tags: vtab-IN-opt) | |
| 00:58 | Add the optional -DSERIES_OMIT_CONSTRAINT_VERIFY=0 option to the series.c extension that implements the generate_series() virtual table. (check-in: 3d9daa929c user: drh tags: trunk) | |
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2016-03-01
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| 22:48 | New test cases and infrastructure for testing the xBestIndex method of virtual tables. (check-in: 1d41c16116 user: drh tags: trunk) | |
| 22:41 | Improved debugging output with wheretrace. Fix some typos in test script comments. (check-in: 13a37fd487 user: drh tags: trunk) | |
| 18:35 | Fix a memory leak in the test code on this branch. (Closed-Leaf check-in: 7a1add5634 user: dan tags: test-bestindex) | |
| 18:24 | Allow test_bestindex.c to set the omit flag for a constraint. (check-in: 759b9d5b22 user: dan tags: test-bestindex) | |
| 18:07 | Add test code useful for testing the planners use of teh virtual table xBestIndex() method. (check-in: de034c0db6 user: dan tags: test-bestindex) | |
| 14:31 | Change the estimated row counts in stat1 to be one-third worst-case and two-threads average case. (check-in: 21bfd47c42 user: drh tags: analyze-worst-case) | |
| 12:45 | Fix test cases to align with the improved stats computation. (check-in: 810967bff6 user: drh tags: analyze-worst-case) | |
| 02:11 | Better estimatedCost in the xBestIndex method of the generate_series vtab. (check-in: f2c16094a5 user: drh tags: trunk) | |
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2016-02-29
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| 23:02 | Improvements to the logic for adding the "noskipscan" flag to stat1 entries. (check-in: 421b5b544a user: drh tags: analyze-worst-case) | |
| 21:27 | The ANALYZE command automatically appends "noskipscan" to sqlite_stat1 entries that have large worst-case repeat estimates but small average repeat estimates. (check-in: 6326ba5891 user: drh tags: analyze-worst-case) | |
| 18:30 | Modify the ANALYZE command to store worst-case statistics in sqlite_stat1, rather thn average case. (check-in: 5a0143c94e user: drh tags: analyze-worst-case) | |
| 17:34 | Fix a problem in fts5 where a corrupt db could lead to a (huge) buffer overread. (check-in: c9a30e117f user: dan tags: trunk) | |
| 17:16 | Fix an fts5 problem causing 'optimize' to corrupt the fts index under some circumstances. (check-in: 251d6473f7 user: dan tags: trunk) | |
| 15:53 | Reduce the amount of heap required to store many schemas by storing each column datatype appended to the column name, rather than as a separate allocation. (Closed-Leaf check-in: 842b211627 user: drh tags: schema-storage) | |
| 13:44 | Very minor improvement to the performance and reduction in size to the parser by capturing the name and datatype of table columns in a single grammar rule reduction. (check-in: 4b55c520f5 user: drh tags: trunk) | |
| 13:37 | Further simplifications to the grammar. (Closed-Leaf check-in: 519fd03b84 user: drh tags: schema-storage) | |
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2016-02-27
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| 23:25 | Update the parser so that it pulls out the column name and type all in one go, rather than using separate reductions. (check-in: ad3ffe2eec user: drh tags: schema-storage) | |
| 21:16 | Eliminate the need for the Column.zDflt (using Column.pDflt instead) to reduce the amount of memory needed to hold the schema. (check-in: d8c94a46df user: drh tags: trunk) | |
| 19:19 | Tighter description of I/O stats in the shell. Show I/O stats on speedtest1.c. (check-in: f681d80034 user: drh tags: trunk) | |
| 19:03 | More compact implementation of PRAGMA onconflict, and some test cases. (Leaf check-in: 3e5d38f5b3 user: drh tags: pragma-onconflict) | |
| 17:16 | Experimental "PRAGMA onconflict=FAIL" statement to change the default ON CONFLICT algorithm to something other than ABORT. (check-in: 3a0c347cca user: drh tags: pragma-onconflict) | |
| 17:12 | Enhance the ".stats" command in sqlite3.exe to show one-time stats information if invoked with one argument. Also show /proc/PID/io information if run on Linux. (check-in: 3c36948f16 user: drh tags: trunk) | |
| 14:04 | Fix a requirement mark to conform to a typo fix in the documentation. (check-in: d1392c6279 user: drh tags: trunk) | |
| 14:00 | Enhance documentation of sqlite3_snapshot_open() to explain that the database connection must have participated in at least one read operation prior to the beginning of the transaction for which the snapshot is to be opened. Add test cases for this fact. (check-in: 33dd671cb9 user: drh tags: trunk) | |
| 00:21 | Add 'Replace.exe' to the MSVC clean target. (check-in: c2277fab12 user: mistachkin tags: trunk) | |
| 00:21 | Fix typo in ICU error message. (check-in: 00c8fffd47 user: mistachkin tags: trunk) | |
| 00:07 | Make sure the Replace.cs file is included in the autoconf tarball. (check-in: b850df483d user: drh tags: trunk) | |
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2016-02-26
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| 23:13 | Support generating the '.def' file using the autoconf Makefile for MSVC. (check-in: 3617564cb6 user: mistachkin tags: trunk) | |
| 21:20 | Fix a potential buffer overflow in the ICU upper() function. (check-in: b8dc1b9f5d user: drh tags: trunk) | |
| 21:03 | Further refinements to the MSVC batch build process. (check-in: cf4e4fbdb6 user: mistachkin tags: trunk) | |
| 16:03 | Fix the ICU extension LIKE function so that it does not read past the end of a buffer if it it passed malformed utf-8. (check-in: 424b7aee33 user: dan tags: trunk) | |
| 15:38 | Provide the new SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER option to sqlite3_db_config() that can be used to activate the two-argument version of fts3_tokenizer() for a specific database connection at run-time. (check-in: 374b510808 user: drh tags: trunk) | |
| 13:22 | Fix a typo in a comment (though an important comment in that it is used to generate documentation). (check-in: ff3d7f845e user: drh tags: trunk) | |
| 04:13 | Ephemeral tables used to hold manifested views may not be unordered since they might be subject to an ordered comparison if they are part of a join. (check-in: 3ef6a31532 user: drh tags: trunk) | |
| 04:04 | Remove a debugging "exit" command mistakenly left in the "where.test" module. (check-in: beda0b8c76 user: drh tags: trunk) | |
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2016-02-25
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| 23:27 | Add some comments in the VSIX test tool. (check-in: c871473ffe user: mistachkin tags: trunk) | |
| 23:25 | Add tool for smoke-testing the UWP VSIX package. (check-in: d27f32c6d7 user: mistachkin tags: trunk) | |
| 23:22 | Enhance checking of prerequisites in the vsixtest tool. (Closed-Leaf check-in: 799d5f09ed user: mistachkin tags: vsixTest) | |
| 23:21 | Fix an incorrect cost computation for sorting (introduced just a few check-ins ago). Should be NlogN, not NloglogN. (check-in: 2459d32388 user: drh tags: trunk) | |
| 21:38 | Small optimization in FK handling. (check-in: e0d25913b7 user: mistachkin tags: trunk) | |
| 21:27 | Change the srcck1.c utility program to use only unsigned characters. (check-in: d64d005eb5 user: drh tags: trunk) | |
| 21:19 | Change the "PRAGMA stats" command to report size values in LogEst units. The eliminates the need for sqlite3LogEstToInt() unless non-standard compile-time options are used, so leave it out except in those cases. (check-in: 832c237fcb user: drh tags: trunk) | |
| 20:17 | Disable the RESTRICT foreign key action if "PRAGMA defer_foreign_keys" is set. (check-in: 9ffff484bb user: dan tags: trunk) | |
| 19:52 | Disable the RESTRICT foreign key action if "PRAGMA defer_foreign_keys" is set. (check-in: 8fea116601 user: dan tags: sessions) | |
| 18:54 | Merge all the latest changes from trunk. (check-in: b86590043e user: drh tags: sessions) | |
| 18:40 | Query planner improvements: Take the LIMIT into account when estimated the cost of an ORDER BY. Avoid automatic indexes on query loops that are expected to run less than twice. See [9e2b2681] for a later enhancement. (check-in: bf46179d44 user: drh tags: trunk) | |
| 18:22 | Improvement on the previous check-in: disallow automatic indexes for any loop that is expected to run less than twice. (Closed-Leaf check-in: aab53a2189 user: drh tags: planner-improvements) | |
| 18:03 | Do not use an automatic index on an outer loop that only runs once. (check-in: 5957e79341 user: drh tags: planner-improvements) | |
| 16:04 | Take the LIMIT clause into account when estimating the cost of sorting. (check-in: d491745cab user: drh tags: planner-improvements) | |
| 13:33 | In the command-line shell: When the ".import" command is creating a new table using column names from the first row of CSV input, make sure double-quotes in the name are properly escaped. (check-in: 2e67a1c823 user: drh tags: trunk) | |
| 08:02 | Improve readability and logging of the vsixtest script. (check-in: 4fe7c4e90b user: mistachkin tags: vsixTest) | |
| 02:56 | Enable all steps and add/update comments. (check-in: 788f99f47f user: mistachkin tags: vsixTest) | |
| 02:49 | More work. Install and build steps are now tested. (check-in: 0ab74373bd user: mistachkin tags: vsixTest) | |
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2016-02-24
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| 23:31 | Fix typo. Improve interim debugging. (check-in: e0029bdf20 user: mistachkin tags: vsixTest) | |
| 23:25 | Test build all supported configurations and platforms during VSIX testing. (check-in: cce40a0b8e user: mistachkin tags: vsixTest) | |
| 21:42 | Initial work on an automated VSIX testing tool. Not working or tested yet. (check-in: 496e4ac984 user: mistachkin tags: vsixTest) | |
| 20:16 | Extend [3e9ed1ae] so that covering indexes on WITHOUT ROWID tables are also identified. (check-in: e721975faa user: dan tags: trunk) | |
| 19:57 | Change a char* to const char* in order to suppress some harmless compiler warnings. (check-in: 56f62e34ae user: drh tags: trunk) | |
| 17:18 | When an index completely covers a table, it can be used as a covering index even if columns past the 63rd column are indexed and accessed. (check-in: 3e9ed1aea4 user: drh tags: trunk) | |
| 16:14 | Fix a problem with handling identifiers that start with "x" if SQLITE_OMIT_BLOB_LITERAL is defined. (check-in: b65217c69c user: dan tags: trunk) | |
| 15:43 | Identify indexes that completely cover their table. (Closed-Leaf check-in: 71d488b599 user: drh tags: covering-index) | |
| 13:35 | LSM1: Fix the integer key encoding so that negative keys are in numeric order. (check-in: f92dc4187f user: drh tags: lsm-vtab) | |
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2016-02-23
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| 16:28 | Add the SQLITE_BITMASK_TYPE compile-time option. (check-in: 0064a8c77b user: drh tags: trunk) | |
| 01:41 | Merge trunk enhancements. (check-in: fac4f4ecee user: drh tags: lsm-vtab) | |
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2016-02-22
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| 23:44 | Remove code not needed now that synchronous=OFF database files no longer trigger the use of a master journal. (check-in: aa9f4c622a user: drh tags: trunk) | |