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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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100 ancestors of [daef5869]

2016-03-01
14:51
Fix a problem in fts5 where a corrupt db could lead to a (huge) buffer overread. Cherrypick of [c9a30e117f]. Closed-Leaf check-in: daef5869 user: dan tags: branch-3.11-matchinfo
14:50
Fix an fts5 problem causing 'optimize' to corrupt the fts index under some circumstances. Cherrypick of [251d6473f7]. check-in: 5b1b7ab5 user: dan tags: branch-3.11-matchinfo
2016-02-19
10:19
Add an "#ifndef SQLITE_AMALGAMATION" guard around a typedef in fts5_test_mi.c to avoid redefining "u32" if it is compiled as part of the amalgamation. Cherrypick of [f9c49ba1]. check-in: ce0f1ed5 user: dan tags: branch-3.11-matchinfo
2016-02-18
16:16
Remove SQLITE_TEST macros from fts5_test_mi.c. Add the SQLITE_FTS5_ENABLE_TEST_MI compile time symbol - to make it easier to create builds that include the fts5 matchinfo demo by default. check-in: e2ef6667 user: dan tags: branch-3.11-matchinfo
2016-02-15
17:29
Version 3.11.0 check-in: 3d862f20 user: drh tags: trunk, release, version-3.11.0
15:06
Make sure the codec is invoked when overwriting existing frames of the WAL file. Yikes! check-in: f694e60a user: drh tags: trunk
2016-02-13
18:54
Provide Sqlite3_SafeInit() and Sqlite3_SafeUnload() entry points on the TCL interface, but have the always return TCL_ERROR, because the non-standard TCL builds on Macs require this. check-in: 37ec3015 user: drh tags: trunk
2016-02-12
18:48
Fix a potential buffer overread provoked by invalid utf-8 in fts5. check-in: a049fbbd user: dan tags: trunk
17:56
Fix a fairly obscure buffer overread in fts5. check-in: 13058020 user: dan tags: trunk
17:30
Fix a documentation typo. No changes to code. check-in: d9c98587 user: drh tags: trunk
17:27
Enhance mptester so that it takes great care to delete its test database prior to start-up, including checking the return code from unlink() and retrying after a delay if unlink() fails. Hopefully this will clear intermittant startup problems on Windows. check-in: 6ea84ec1 user: drh tags: trunk
05:19
Naming updates for Universal Windows Platform. check-in: 717c1fc4 user: mistachkin tags: trunk
00:13
Remove an unused parameter from whereSortingCost(). check-in: b5d77199 user: drh tags: trunk
2016-02-11
22:41
Automatically disable FTS3 and FTS4 when building with SQLITE_OMIT_VIRTUALTABLE. check-in: 0beb32d2 user: drh tags: trunk
21:59
Enhance the MSVC makefile to enable building 'testfixture' fully from source code. check-in: f183e059 user: mistachkin tags: trunk
21:55
Remove the unexplained extra 3.0 cost factor for the B-tree sorting that is done to implement DISTINCT in the absence of an index to help. check-in: 52571991 user: drh tags: trunk
21:53
Remove the unused fts5BlobCompare() routine. check-in: defc762d user: drh tags: trunk
21:38
Prevent 'expanded command line X too long' errors during the batch 'for' loops used for copying files. Closed-Leaf check-in: 67ee9b5a user: mistachkin tags: testFixtureSrc
21:28
Enhance the MSVC makefile to enable building 'testfixture' fully from source code. check-in: 54ff3a26 user: mistachkin tags: testFixtureSrc
18:18
Fix another unused variable warning in fts5 code. check-in: 61b4c120 user: dan tags: trunk
18:08
Avoid a buffer overread when reading a corrupt fts5 structure record. check-in: facbc424 user: dan tags: trunk
17:01
Handle parser stack overflow when parsing fts5 query expressions. Fix some compiler warnings in fts5 code. check-in: bc3f7900 user: dan tags: trunk
15:37
Add JSON1 and FTS5 to the set of extensions subject to close compiler warning analysis. Fix some warnings in each. More (harmless) warnings still exist in FTS5. check-in: cfe2eb88 user: drh tags: trunk
2016-02-10
21:45
In the MSVC makefile, include the working directory so that it can pickup build generated files (e.g. sqlite3.h, etc). check-in: e9e6000b user: mistachkin tags: trunk
19:10
Add testcase() macros to the CHECK constraint avoidance logic. Avoid creating an unused VDBE label during CHECK constraint code generation. check-in: 970881be user: drh tags: trunk
18:24
Fix to previous check-in: Make sure CHECK constraints involving the ROWID are not ignored when the ROWID changes. check-in: 7782cb1d user: drh tags: trunk
16:52
Omit unnecessary CHECK constraints in UPDATE statements, when none of the columns referenced in the CHECK constraint are modified. check-in: 02fbdbc7 user: drh tags: trunk
16:03
Omit NOT NULL checks on unchanging columns in an UPDATE. check-in: 6a3aaedf user: drh tags: trunk
13:36
When generating the snapshot-tarball, truncate the date/time in the name to 12 significant digits (YYYYMMDDhhmm) omitting the seconds and fractional seconds. check-in: 604f7775 user: drh tags: trunk
13:17
Updates to the autoconf tarball README.txt file. check-in: a3e911e3 user: drh tags: trunk
2016-02-09
22:54
Update the snapshot tarball name to use the date (ISO8601 format) instead of the SHA1 hash in its name. check-in: 070ec66f user: drh tags: trunk
22:39
Add the new "snapshot-tarball" target to the unix makefiles, for building a tarball similar to "amalgamation-tarball" but named by the SHA1 hash of the current check-out rather than by the version number. check-in: 4f360b2a user: drh tags: trunk
22:00
Update the MSVC autoconf makefile with the recent changes from the primary one. check-in: c7242aa3 user: mistachkin tags: trunk
20:37
Fix the makefiles in the autoconf-tarball so that they build the command-line shell with SQLITE_ENABLE_EXPLAIN_COMMENTS. check-in: 1135ad01 user: drh tags: trunk
20:31
In the shell, use the appropriate string constant instead of a literal new-line. check-in: 61951b15 user: mistachkin tags: trunk
20:11
Enhance the command-line shell to be in auto-explain mode by default. It is no longer necessary to use the ".explain" command to put the shell into a mode where the EXPLAIN output is formatted nicely. That now happens automatically. check-in: 751915cb user: drh tags: trunk
20:04
Improved auto-detection of EXPLAIN output in the shell. Closed-Leaf check-in: 6c6d7a6e user: drh tags: auto-explain
18:39
Add auto-explain mode to the command-line shell. Default on. Auto-explain tries to automatically detect EXPLAIN queries and format them appropriately. check-in: 1d62aa6b user: drh tags: auto-explain
18:28
Fix MSVC makefile options that enable control-flow guard. check-in: 51b6823f user: mistachkin tags: trunk
17:12
Fix the top-level makefiles to always include SQLITE_ENABLE_EXPLAIN_COMMENTS when building the shell. Still need to fix main.mk and the amalgamation tarball. check-in: 99228239 user: drh tags: trunk
16:09
Code simplification: ALTER TABLE ADD COLUMN always upgrades the file_format to 4 if is not there already. No need to upgrade to only 2 or 3 since format 4 has now been supported for over 10 years. check-in: e1d8ec85 user: drh tags: trunk
02:12
Make sure every co-routines has its own set of temporary registers and does not share temporaries, since a co-routine might expect the content of a temporary register to be preserved across an OP_Yield. Proposed fix for ticket [d06a25c84454a]. check-in: ca72be86 user: drh tags: trunk
2016-02-08
20:45
Fix spelling error in MSVC makefile comments. check-in: 6eab74c9 user: mistachkin tags: trunk
20:40
More work on Windows 10 SDK integration. check-in: 1e563c6e user: mistachkin tags: trunk
20:14
Fix a signed/unsigned comparison warning in fts5. check-in: 85eb05dd user: dan tags: trunk
20:06
Fix a compiler warning when compiling without SQLITE_ENABLE_FTS3_TOKENIZER. check-in: 6926f28c user: drh tags: trunk
19:40
Disable the two-argument form of the fts3_tokenizer() SQL function unless the library is built with -DSQLITE_ENABLE_FTS3_TOKENIZER. check-in: e0eb217a user: dan tags: trunk
19:36
Changes to help the tokenizer run about 33% faster. check-in: a050e6f0 user: drh tags: trunk
19:15
Add code to get the tokenizer character-class logic working for EBCDIC. Closed-Leaf check-in: 04f7da77 user: drh tags: tokenizer-char-class
03:23
Faster keywordCode() implementation by taking advantage of the fact that the input is always pure ASCII alphabetic and underscore and that the keyword table is always upper-case. check-in: ff406b97 user: drh tags: tokenizer-char-class
02:30
Demonstrate a much faster sqlite3GetToken() routine by using a lookup table to map initial token characters into a character class. This check-in does not work for EBCDIC. More optimization needed. check-in: 9115baa1 user: drh tags: tokenizer-char-class
2016-02-07
20:39
Fix harmless compiler warning in 'srcck1' tool and add it to the clean targets. check-in: 852a529a user: mistachkin tags: trunk
00:08
Add the sourcetest target to Makefile.msc. check-in: ab269e72 user: drh tags: trunk
2016-02-06
22:32
Add a utility program that looks for assert(), NEVER(), ALWAYS(), and testcase() macros that have side-effects, and reports errors when they are found. Also fix a bug that this utility detected as it was being tested. check-in: b0b4624f user: drh tags: trunk
19:48
Make sure variable declarations occur at the beginning of blocks, even with SQLITE_DEBUG enabled. check-in: 2f7778e6 user: drh tags: trunk
14:14
Fix an assert() to have a test instead of a side effect check-in: a2952231 user: pdr tags: trunk
2016-02-05
21:09
Add tests for and remove unreachable branches from fts5 in order to restore test coverage. check-in: 22589018 user: dan tags: trunk
19:40
More work on Windows 10 SDK integration. Closed-Leaf check-in: ebace2c9 user: mistachkin tags: win10sdk
19:18
Further streamlining of fts5 prefix query code. check-in: ca91bd8a user: dan tags: trunk
17:49
Make sure the "bak.db" database file does not actually exist before starting the "quota.test" testing. check-in: 1cac6c45 user: drh tags: trunk
16:46
From test scripts, remove stray "breakpoint" commands and blank lines at the ends of files. check-in: a6b35273 user: drh tags: trunk
14:11
Improvements to the way out-of-memory conditions are handled, resulting in an almost 1% performance gain in the commmon case where OOM errors do not occur. check-in: b082538d user: drh tags: trunk
13:38
Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority cases where db is guaranteed to be not NULL. Closed-Leaf check-in: 0a802e96 user: drh tags: oom-handling
04:55
Improve ERRORLEVEL handling in the MSVC batch build tool sub-routine 'fn_UnsetVariable'. check-in: fe123ab4 user: mistachkin tags: trunk
04:50
OOM failures on sqlite3_errmsg16() in an app-defined function are no longer benign. check-in: 9efb223f user: drh tags: oom-handling
04:39
Another small tweak to the MSVC batch build tool. check-in: 76718bbc user: mistachkin tags: trunk
02:50
Minor simplification of schema error reporting. check-in: a8846aee user: drh tags: oom-handling
02:42
Further performance improvements that fall out of the mallocFailed changes. check-in: d94416dd user: drh tags: oom-handling
01:55
Improvements to the way that OOM errors are processed. check-in: c3ef0347 user: drh tags: oom-handling
2016-02-04
19:50
Temporarily back out the 0.5% performance improvement from check-in [632071bac5ff32]. Need a more elaborate solution that works with reentrant virtual tables and SQL functions. check-in: 42736fb0 user: drh tags: trunk
19:45
Further improve performance of unindexed fts5 prefix queries. check-in: c9c6457d user: dan tags: trunk
17:31
Avoid running some particularly time-consuming tests as part of veryquick.test. check-in: f465944b user: dan tags: trunk
11:48
Remove unnecessary sets of db->mallocFailed. check-in: b787165b user: drh tags: trunk
11:15
Use sqlite3_malloc64() instead of sqlite3_malloc() in the spellfix extension. check-in: 634d008c user: drh tags: trunk
10:28
Escape control characters in JSON. Fix for ticket [ad2559db380abf8]. check-in: 4f1b5229 user: drh tags: trunk
09:48
Refinements to synchronous logic: (1) Use PAGER_SYNCHRONOUS_FULL rather than the corresponding magic number. (2) Honor SQLITE_NO_SYNC on xDelete calls with sync (3) Count xDelete syncs during testing (4) Fix #ifs on SQLITE_EXTRA_DURABLE so that directory syncs on journal unlink are off by default. check-in: e3157cb5 user: drh tags: trunk
2016-02-03
22:14
In the VDBE loop, only check for OOM errors at jumps rather than after every opcode, for about a 0.5% performance increase. check-in: 632071ba user: drh tags: trunk
20:04
Improve performance of fts5 prefix queries on detail=col tables. check-in: ca11f46d user: dan tags: trunk
19:52
Fix markup errors in comments used to generate the documentation - specifically in the documentation on the OP_Seek opcode. check-in: ef252bc4 user: drh tags: trunk
19:20
Add "PRAGMA synchronous=EXTRA" which syncs the directory containing the rollback journal when the rollback journal is deleted in order to commit a transaction in DELETE mode. check-in: af924018 user: drh tags: trunk
01:55
Enhance the internal sqlite3VdbeAddOpList() interface to automatically update jump destinations. Use this feature to simplify the AUTOINCREMENT code generator. check-in: ae8b9d2e user: drh tags: trunk
2016-02-02
21:19
Add tests to restore full coverage of fts5 code. check-in: 063755c8 user: dan tags: trunk
17:40
Enhance the performance of fts5 AND and OR queries. check-in: 62ea9e5a user: dan tags: trunk
02:04
Enhance the comment on the sqlite3_index_constraint object to bring attention to the fact than iColumn field can be negative for a rowid. check-in: d8b7b199 user: drh tags: trunk
2016-02-01
21:48
Change the OP_SetCookie instruction to write the literal P3 value, not the value in register P3. check-in: 6d7d4703 user: drh tags: trunk
20:12
Improve performance of fts5 queries. check-in: 2334e882 user: dan tags: trunk
17:20
Number VDBE opcodes starting with 0 instead of 1, as this obviates the lower-bound test on "switch(opcode){...}", making the code smaller and faster. check-in: 4c9222f7 user: drh tags: trunk
16:36
Update walcrash.test to ensure that, during a particular test, enough data is written to cause SQLite to sync the wal file 14 times. check-in: 5d7c0928 user: dan tags: trunk
13:58
Fix a problem causing the OR/covering-index optimization to be disabled if compile time parameter SQLITE_MAX_ATTACHED were set to greater than 30. check-in: a17712bf user: dan tags: trunk
13:21
Minor simplification to the OP_AutoCommit opcode. Fix some code comments related to transaction control. check-in: a9b6a067 user: drh tags: trunk
00:21
Fix an assert() that might fail on a corrupt database. check-in: 22eaced7 user: drh tags: trunk
2016-01-30
21:09
Fix new test cases in stat.test so that they work with -DSQLITE_DEFAULT_AUTOVACUUM=1 builds. check-in: a2810cf6 user: dan tags: trunk
19:16
Performance enhancement for fts5 column filter queries on detail=full tables. check-in: 13fb4aa6 user: dan tags: trunk
16:59
Merge the implementation of OP_IdxRowid and OP_Seek so that OP_Seek no longer requires the rowid register and a separate OP_IdxRowid call. Shorter and faster prepared statements result. check-in: 9bec50a1 user: drh tags: trunk
15:52
Only honor the register subtype value if the MEM_Subtype flag is set. Revised and improved fix for ticket [f45ac567eaa9f9]. check-in: 1f4c667f user: drh tags: trunk
15:46
A different way to clear the subtype on VDBE registers when the value of the register is overwritten with new content. To fix [[f45ac567eaa9f93]. Closed-Leaf check-in: 2e9fb129 user: dan tags: clear-subtype-flag
14:17
Output subtype information on register traces for PRAGMA vdbe_trace. check-in: 96b78020 user: drh tags: trunk
13:32
Add the BTREE_FORDELETE and BTREE_AUXDELETE flags to the b-tree layer interface and use them. Add assert() statement to verify that they are correct. check-in: 85c46704 user: drh tags: trunk
12:50
Simplification and size reduction to the printf logic. Remove the bFlags parameter from sqlite3VXPrintf() and sqlite3XPrintf(). Use sqlite3XPrintf() instead of sqlite3_snprintf() for rendering P4 values in EXPLAIN output. check-in: 0bdb41c4 user: drh tags: trunk
02:10
Make use of covering indexes in the OR optimization. check-in: 9de3d712 user: drh tags: trunk
00:45
Change the P4_INTARRAY so that always begins with a length integer. Print the content of the INTARRAY on EXPLAIN output. Closed-Leaf check-in: 6c520d57 user: drh tags: covering-or