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88 check-ins using file src/vdbemem.c version 2f9d672af5
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2017-09-20
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| 09:09 | Updates to the "lemon.html" document received from Andy Goth. (check-in: 5b2002f3df user: drh tags: trunk) | |
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2017-09-18
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| 18:17 | Add the sqlite3_mmap_warm() function as an extension in the ext/misc/mmapwarm.c source file. (check-in: 1b2de41453 user: drh tags: trunk) | |
| 18:08 | Fix a typo in the MSVC makefile. (Closed-Leaf check-in: 3235835bab user: drh tags: mmap-warm) | |
| 16:28 | Add extension "mmapwarm.c". Provides function sqlite3_mmap_warm(), used to "warm up" the memory mapping used by SQLite in mmap mode to access db file content. (check-in: d4a30b91f9 user: dan tags: mmap-warm) | |
| 13:16 | Minor simplification of error message generation during compound query code generation. (check-in: a944719314 user: drh tags: trunk) | |
| 09:40 | The out-of-bounds read on recovery fix of check-in [378afa16381a222a] caused problems for some corner-case error conditions. This alternative fix appears to work better. (check-in: 74f399d81f user: drh tags: trunk) | |
| 08:51 | Merge latest trunk changes with this branch. (Leaf check-in: 2e57335081 user: dan tags: shared-mapping-hack) | |
| 00:18 | Fix the CSV virtual table extension so that it works when the default character is unsigned. (check-in: 42f0777555 user: drh tags: trunk) | |
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2017-09-17
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| 19:45 | Do not make the assumption (as check-in [4da49a95c0f07] incorrectly did) that the ExprList returned by sqlite3ExprListDup() would never be passed into sqlite3ExprListAppend(). Include a new test case that shows this sometimes does happen. (check-in: 29227d00a9 user: drh tags: trunk) | |
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2017-09-16
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| 20:58 | Simplify the sqlite3VdbeGet() routine. Smaller, faster, and easier to maintain. (check-in: 5dbb255a93 user: drh tags: trunk) | |
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2017-09-15
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| 17:40 | Remove an unnecessary parameter from selectInnerLoop(). (check-in: dd95887f82 user: drh tags: trunk) | |
| 15:38 | Improved the header-comment documentation on sqlite3ExprCodeExprList(). No changes to code. (check-in: 5dc3ecb5f6 user: drh tags: trunk) | |
| 15:17 | Optimization to the ExprList object to make it slightly smaller and faster. (check-in: 4da49a95c0 user: drh tags: trunk) | |
| 14:36 | Fix a harmless comment typo. No changes to code. (check-in: f7f0bf1da0 user: drh tags: trunk) | |
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2017-09-14
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| 21:12 | Add another test case for the problem fixed by the previous commit. (check-in: 1a7e0b61c8 user: dan tags: trunk) | |
| 20:41 | Avoid an out-of-bounds read that can be caused by a specially constructed journal file. (check-in: cf5bf42cad user: dan tags: trunk) | |
| 02:36 | Avoid an out-of-bounds read on a recovery attempt using a carefully crafted database and rollback journal with mismatched page sizes. The test case for this is in TH3. (check-in: 378afa1638 user: drh tags: trunk) | |
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2017-09-13
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| 20:20 | Test case update due to PRAGMA integrity_check enhancements in [8525c30c]. No changes to code. (check-in: 43c6023bbf user: drh tags: trunk) | |
| 18:38 | Experimental sqlite3_stmt_retryable() interface. (Leaf check-in: ebada0723a user: drh tags: sqlite3_stmt_retryable) | |
| 12:55 | Disable FTS3 matchinfo() tests that assume a littleEndian platform when running on bigEndian. (check-in: 87ccdf9cbb user: drh tags: trunk) | |
| 00:33 | Improvements to PRAGMA integrity_check for better detection of malformed records. Integrity_check now avoids returning SQLITE_CORRUPT on a corrupt record. Also includes microoptimizations that I stumbled over while working on integrity_check. (check-in: 8525c30c1d user: drh tags: trunk) | |
| 00:13 | PRAGMA integrity_check returns SQLITE_OK even if it encounters corruption while scanning indexes. (Closed-Leaf check-in: 81f62e99f2 user: drh tags: improved-integrity-check) | |
| 00:01 | Fix test script comment. No changes to code. (check-in: a5a1949259 user: mistachkin tags: trunk) | |
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2017-09-12
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| 23:58 | Remove use of the rand_s() function (added by [139081bef9f63c3e]) as it appears to cause issues with some third-party DLLs. (check-in: 3a2793aa65 user: mistachkin tags: trunk) | |
| 18:49 | Add the highly-experimental "PRAGMA noop_update=TRUE" command. (Leaf check-in: de2e371757 user: drh tags: pragma-noop-update) | |
| 18:11 | Merge the mutex-free PRNG change into this branch. (check-in: 8b1fc4b9f3 user: dan tags: shared-mapping-hack) | |
| 18:03 | Hack to have multiple connections to a single file share a single memory mapping of the databse file. (check-in: ec37ad6d08 user: dan tags: shared-mapping-hack) | |
| 15:05 | Fix an error in [b22cdd67] that can cause a negative infinity to be (rarely) reported as a positive infinity. (check-in: 9780b23ca3 user: drh tags: trunk) | |
| 13:27 | Changes to (hopefully) get the build working with recent Intel compilers. (check-in: b22cdd6734 user: drh tags: trunk) | |
| 00:24 | Make sure all connections are closed in the pragma.test script. Test change only - no changes to code. (check-in: d7b7f038a2 user: drh tags: trunk) | |
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2017-09-11
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| 23:46 | New test case for ticket [b899b6042f97f52d]. (check-in: 9d91ee5ee3 user: drh tags: trunk) | |
| 20:54 | Add support for new operators in virtual tables: !=, IS, IS NOT, IS NULL, and NOTNULL. (check-in: 3b7dbe9da9 user: drh tags: trunk) | |
| 19:47 | Refactor names of constants and functions associated with the auxiliary operators for xBestIndex. (Closed-Leaf check-in: 0fb992af66 user: drh tags: vtab-extra-ops) | |
| 18:37 | Minor adjustments to indentation and spacing for clarity. No changes to code. (check-in: d3153abda6 user: drh tags: vtab-extra-ops) | |
| 08:53 | Add tests to check that affinities work with != operators on virtual table column values. No changes to code. (check-in: 8d24e0803d user: dan tags: vtab-extra-ops) | |
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2017-09-10
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| 01:06 | Simplifications to the PRAGMA integrity_check code generator. (check-in: 99b9140c79 user: drh tags: improved-integrity-check) | |
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2017-09-09
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| 22:46 | Simplification and performance improvement to sqlite3_reset(). (check-in: b6425d0170 user: drh tags: improved-integrity-check) | |
| 20:38 | Improved detection of malformed records by PRAGMA integrity_check. (check-in: 8fa923caa1 user: drh tags: improved-integrity-check) | |
| 19:41 | Enhance the vtab interface to handle IS, !=, IS NOT, IS NULL and IS NOT NULL constraints. (check-in: 34c8e95261 user: dan tags: vtab-extra-ops) | |
| 08:03 | Use a mutex-free PRNG for the random() and randomblob() SQL functions and for the randomness used during checkpoint operations. (Leaf check-in: e63d1a7cd3 user: drh tags: mutex-free-randomness) | |
| 06:10 | Merge trunk enhancements (check-in: 6a0b9d9d4e user: drh tags: apple-osx) | |
| 00:51 | Fix harmless compiler warnings seen with MSVC. (check-in: faa22e29a5 user: mistachkin tags: trunk) | |
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2017-09-08
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| 17:48 | Have the header comment for sqlite3Checkpoint() mention TRUNCATE along with the other three checkpoint types. No changes to code. (check-in: e1e3ca7ea4 user: dan tags: trunk) | |
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2017-09-07
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| 09:56 | Prevent a possible crash when trying to recover using a carefully corrupted \ and truncated rollback journal. (Test case in TH3) (check-in: 02828d717e user: drh tags: trunk) | |
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2017-09-05
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| 20:16 | Update "PRAGMA integrity_check" to detect inconsistencies between a single record's header and body. (check-in: 9e393a0edf user: dan tags: trunk) | |
| 17:23 | Fix a comment describing the xRowid method of the "series" virtual table. No code changes. (check-in: 868cd19600 user: dan tags: trunk) | |
| 16:24 | Add experimental API sqlite3rbu_temp_size_limit(). For limiting the amount of temporary disk space RBU uses. (check-in: 7fdd629830 user: dan tags: trunk) | |
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2017-09-04
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| 19:31 | Use the SQLITE_CORRUPT_BKPT return code in a couple more places. (check-in: 72d22c226b user: mistachkin tags: trunk) | |
| 18:44 | Add the 'mksourceid' executable to the clean target for MSVC. (check-in: 77854694b2 user: mistachkin tags: trunk) | |
| 00:33 | Proposed fix for ticket [b899b6042f97f5] (check-in: c7f9f47b23 user: drh tags: trunk) | |
| 00:19 | Fix recent test cases in test/indexepxr2.test so that they work even without SQLITE_ENABLE_STAT4 and SQLITE_ENABLE_JSON1. (check-in: 03f3cc03aa user: drh tags: trunk) | |
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2017-09-01
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| 14:50 | Add the new sqlite3PagerUnrefPageOne() pager method to deal with the special case of unreferencing page1. (check-in: b2e2100cf7 user: drh tags: trunk) | |
| 12:57 | Remove an obsolete optimization in pcache that due to more recent changes was recently making the code a little slower. (check-in: c4e7e175ee user: drh tags: trunk) | |
| 12:18 | Small size and performance improvement in pcacheManageDirtyList() by not zeroing the PgHdr.pDirtyNext and PgHdr.pDirtyPrev pointers for PgHdr objects that are not on the dirty list. (check-in: 919863b148 user: drh tags: trunk) | |
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2017-08-31
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| 21:11 | Clarify the documentation about "protected" versus "unprotected" sqlite3_value objects. No changes to code. (check-in: 4094a3410e user: drh tags: trunk) | |
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2017-08-30
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| 13:21 | Remove unnecessary "__declspec(dllexport)" qualifiers from generated file shell.c. (check-in: bcc20be5b2 user: dan tags: trunk) | |
| 04:44 | Small performance optimization in pcache1. (check-in: ffd437da95 user: drh tags: trunk) | |
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2017-08-29
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| 20:21 | Faster memory allocation from lookaside by not trying to keep track of the number of outstanding allocations, and rather computing that value only when requested. (check-in: a06263f1ef user: drh tags: trunk) | |
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2017-08-28
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| 17:19 | Merge recent enhancements from trunk. (check-in: d53108e763 user: drh tags: begin-concurrent) | |
| 17:00 | Add the --enable-update-limit option to the ./configure script. (check-in: 64a8ae6838 user: drh tags: trunk) | |
| 16:11 | Avoid unnecessary mutexes in the pcache1 implementation in the common case where no auxiliary page cache memory is configured. (check-in: 1ba051e34d user: drh tags: trunk) | |
| 15:51 | Remove the rarely-used scratch memory allocator. This makes the code smaller, faster, and easier to maintain. In place of the scratch allocator, add the SQLITE_CONFIG_SMALL_MALLOC configuration option that provides a hint to SQLite that large memory allocations should be avoided. (check-in: 54b000246c user: drh tags: trunk) | |
| 14:33 | Backport changes to shell.c into shell.c.in. (check-in: 2348045fbc user: drh tags: trunk) | |
| 11:12 | Fix the ".dump", ".schema", and ".fullschema" commands of the command-line shell so that they work even if PRAGMA empty_result_callbacks is enabled. Fix for ticket [02f0f4c54f281]. (check-in: cf0d3715ca user: drh tags: trunk) | |
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2017-08-27
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| 10:55 | Instrumentation and changes in an effort to reduce thread contention. (Leaf check-in: c93298d5ae user: drh tags: reduced-thread-contention) | |
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2017-08-25
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| 19:51 | Fix a few over-length source code lines. No functional changes. (check-in: 1783c54ce9 user: drh tags: trunk) | |
| 15:43 | Size and performance optimization for sqlite3Init(). (check-in: 776d91284a user: drh tags: trunk) | |
| 13:34 | Small performance optimization in sqlite3WhereBegin(). (check-in: 39f708d1e2 user: drh tags: trunk) | |
| 13:02 | Convert a branch made unreachable by [59560d07] into an assert(). (check-in: 2738b8db3c user: drh tags: trunk) | |
| 11:44 | Improve the internal mechanism used to keep track of what kind of syncing to do for WAL transaction commits and checkpoint operations. Use the checkpoint-style of syncing to sync the header of a new or restarted WAL file. (check-in: e8d23afe84 user: drh tags: trunk) | |
| 09:17 | Avoid returning duplicate rows in experimental pragmas "pragma_list", "module_list" and "function_list". (check-in: b79cc8dc88 user: dan tags: trunk) | |
| 01:14 | Update the mechanism used to keep track of what kind of syncing to do for WAL transaction commits and checkpoint operations. Use the checkpoint-style of syncing to sync the header of a new or restarted WAL file. (Closed-Leaf check-in: bf65dae8d4 user: drh tags: wal-sync-refactor) | |
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2017-08-24
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| 20:54 | Fix an incorrect hyperlink in a comment. (check-in: 25292b9a4e user: drh tags: trunk) | |
| 15:43 | Fixes to documentation about SQLITE_OPEN_URI. (check-in: 7ec72314d6 user: drh tags: trunk) | |
| 13:55 | Make sure the sqlite3_result_pointer() interface does not leave a VM register in an inconsistent state. Fix for ticket [7486aa54b968e9b5]. Test cases are in TH3. (check-in: d2f9230c5c user: drh tags: trunk) | |
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2017-08-23
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| 23:09 | Performance optimization to pageFindSlot() in the b-tree layer. (check-in: 59560d079f user: drh tags: trunk) | |
| 20:36 | Size and performance optimization to dropCell() and freeSpace(). (check-in: bc1ec123ce user: drh tags: trunk) | |
| 14:45 | Smaller and faster implementation of the fillInCell() routine. (check-in: 77074990ed user: drh tags: trunk) | |
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2017-08-22
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| 21:23 | Update documentation to make it clear that SQLITE_SOURCE_ID and sqlite3_sourceid() might changes if the source code is edited. (check-in: e69c0c8770 user: drh tags: trunk) | |
| 21:07 | Less dramatic changes to the source-id following an edit. Modify the way that the amalgamation is constructed to give it the opportunity to detect changes and modify the source-id. (check-in: 564c7340a3 user: drh tags: trunk) | |
| 19:54 | Modify the SQLITE_SOURCE_ID if the source code has changed in any way since the previous check-in. (check-in: 515d6a8377 user: drh tags: trunk) | |
| 19:49 | Trying again to get out-of-tree builds to work correctly. (Closed-Leaf check-in: a1b3337e94 user: drh tags: mksourceid) | |
| 19:44 | mksourceid still does not work right. (Leaf check-in: ca5dcb4a36 user: drh tags: mistake) | |
| 19:43 | Attempting to fix the source-id generator so that it works for out-of-tree builds. (check-in: 5a037ac2da user: drh tags: mksourceid) | |
| 19:19 | Add the "mksourceid" program to the build process. That program changes the SQLITE_SOURCE_ID if the source tree has been modified in any way. (check-in: d4c05e04f7 user: drh tags: mksourceid) | |
| 15:21 | Fix error tests in seldom-used compile-time branches of the unix backend. (check-in: 885c2b44a4 user: drh tags: trunk) | |
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2017-08-21
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| 02:20 | Remove an unnecessary conditional. (check-in: 56d19f9fd7 user: drh tags: trunk) | |
| 02:05 | Minor optimization to sqlite3VdbeMemSetStr(). (check-in: 6538ef7b6b user: drh tags: trunk) | |