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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 check-ins occurring around e462cde2a50c39cc.

2016-05-13
15:22
Remove the unused PGHDR_NEED_READ flag. Add invariant checking (during SQLITE_DEBUG builds only) for the PgHdr object. check-in: 771c5411 user: drh tags: trunk
12:12
Clarification of the pagerFlushOnCommit() logic. check-in: 3401d9dc user: drh tags: trunk
11:50
Fix pager_end_transaction() to ensure that a ROLLBACK does not clobber unwritten pages in a TEMP file pcache. check-in: 9495d338 user: drh tags: trunk
04:24
Additional debugging and tracing logic for pcache.c, turned off by default using an "#if 0". check-in: 32a62e3b user: drh tags: trunk
2016-05-12
19:17
Disable ALWAYS and NEVER when compiled with SQLITE_MUTATION_TEST. check-in: 24d9fbc1 user: drh tags: trunk
19:05
Simplification of the sqlite3FaultSim() call inside of sqlite3PagerCommitPhaseOne(). check-in: 1b0f4cc3 user: drh tags: trunk
18:38
Add an assert in pager.c to confirm that pPager->tempFile is always true for in-memory databases. check-in: 3fd71092 user: drh tags: trunk
17:06
Add extra OPTIMIZATION-IF-FALSE comments where required to pcache.c. check-in: 9d55b8f5 user: dan tags: trunk
12:08
For in-memory databases, it does not matter if pcache entries are marked "clean" or "writable". check-in: 06c1e27c user: drh tags: trunk
12:01
Remove an unnecessary call to sqlite3PcacheMakeClean() inside of the ROLLBACK logic. check-in: 0dc50d99 user: drh tags: trunk
09:48
Add a missing OPTIMIZATION-IF-FALSE comment to pcache.c. check-in: bc202e5b user: dan tags: trunk
2016-05-11
23:54
For in-memory databases, it does not matter if pcache entries are marked "clean" or "writable". Closed-Leaf check-in: ad601c79 user: drh tags: pager-dev
20:03
Remove a redundant condition from pcache.c. Add an OPTIMIZATION-IF-TRUE comment to another condition that requires it. check-in: 3bfd2621 user: dan tags: trunk
18:20
Remove a redundant condition from pcache.c. Add an OPTIMIZATION-IF-TRUE comment to another condition that requires it. Closed-Leaf check-in: 4533ed35 user: dan tags: mistake
15:41
Remove some a small amount of redundant code related to PCache.pSynced from pcache.c. check-in: 9cc8cad7 user: dan tags: trunk
12:47
Do not reset the page cache when a rollback journal truncate fails, as doing so can cause loss of information for an in-memory TEMP file. check-in: 345ce1c9 user: drh tags: trunk
11:04
Always truncate, rather than persist, the rollback journal of a TEMP database. check-in: 42fb6f1e user: drh tags: trunk
10:57
Add pcache tracing macros. Off by default. Requires changing an "#if 0" and recompiling to enable. check-in: d9313d19 user: drh tags: trunk
2016-05-10
20:16
Add another test case to temptable3.test. check-in: 22364024 user: dan tags: trunk
20:03
Fix a problem in sqlite3PagerMovepage() when working on a temp table for which pages have been spilled. check-in: 20cf8811 user: drh tags: trunk
2016-05-09
23:11
Fixes to requirements marks. No changes to code. check-in: 79ecd0ef user: drh tags: trunk
22:35
Enhancements to test/sort5.test so that it works with SEE. check-in: 8a39c8ee user: drh tags: trunk
22:32
Remove some forgotten debugging lines from test/sort5.test. check-in: f5875489 user: drh tags: trunk
19:58
Omit the unnecessary WHERE_REOPEN_IDX flag in the WHERE interface. Closed-Leaf check-in: da94a6e0 user: drh tags: dev
19:03
Update a comment in fts5.h. No changes to code. check-in: 14e53d0e user: dan tags: trunk
18:05
Fix the FTS5 xQueryPhrase() API function so that it recognizes column filters. check-in: 48505cde user: dan tags: trunk
2016-05-07
18:02
Add options to bc_test1.c to make it more flexible. check-in: ec6ef5f2 user: dan tags: begin-concurrent
12:15
Make the sqlite3DeleteTable() routine smaller and faster. check-in: d75140b8 user: drh tags: trunk
12:15
Fix typo in the intpkey-17.2 test. check-in: a45fda65 user: drh tags: trunk
2016-05-06
21:04
Add test/bc_test1.c, for testing the degree of concurrency provided by this branch under various conditions. check-in: 128c7eae user: dan tags: begin-concurrent
20:23
Simplification to the logic used to decide between OP_Seek and OP_NotExists. Use OP_NotExists for both DELETE and UPDATE. check-in: 3a695263 user: drh tags: trunk
18:47
Corrections to comments on the whereScanInit() interface. check-in: ab7ab415 user: drh tags: trunk
16:49
For DELETE operations, make sure that seeks on the main table are not deferred, since if they are and none of the indexes reference columns of the table, the seek might never occur until the OP_Delete opcode, which is too late. Fix for ticket [16c9801ceba49]. check-in: 93a2bace user: drh tags: trunk
16:30
Fix an error in main.mk causing testfixture to use individual fts5 source code files instead of fts5.c. check-in: 933a1c81 user: dan tags: trunk
16:06
In the WHERE generator, when building code for a DELETE operation, make sure that seeks to the main table are not deferred. This is a better fix for the [16c9801ceba49] bug than the previous. Closed-Leaf check-in: 150dd09e user: drh tags: ticket-16c9801ce
15:16
Fix a bug in sqlite_analyzer causing it report (slightly) incorrect values for the number of entries in indexes or WITHOUT ROWID tables. check-in: dc37750d user: dan tags: trunk
11:31
Do not scan indexes that have the integer primary key as their left-most column. This fixes the crash of ticket [16c9801ceba] but it seems like the wrong fix. More investigation needed. check-in: 50312273 user: drh tags: ticket-16c9801ce
2016-05-05
23:59
Additional error reporting. Open the source database read/write so that it can delete the WAL file when done. check-in: d2efd3c1 user: drh tags: scrub-backup
23:39
Working when run against sqlite.fossil. check-in: b0bd9dd6 user: drh tags: scrub-backup
23:09
Finished implementation compiles, but untested. check-in: aeb88bdf user: drh tags: scrub-backup
17:15
Initial check-in of the "scrub.exe" utility program prototype. Not yet fully functional. In particular, no scrubbing is done. check-in: bdf2ec77 user: drh tags: scrub-backup
11:53
Renumber internal constants in the printf() implemention for a small performance improvement. check-in: 69d11447 user: drh tags: trunk
2016-05-04
21:06
Disable the session extension API if SQLITE_ENABLE_SESSION is not defined. check-in: 71af9ac1 user: drh tags: trunk
19:04
Fix typo in comment. No changes to code. check-in: 6c43ba1c user: mistachkin tags: trunk
14:45
Only disable the one-pass DELETE optimization if the WHERE clause contains a correlated subquery. Uncorrelated subqueries are allowed. This is a refinement of check-in [3f221f592a9a1] that is the fix for ticket [dc6ebeda9396087]. check-in: aae38969 user: drh tags: trunk
14:20
Portability enhancements to the configure script on the amalgamation tarball. check-in: 7184c4b8 user: drh tags: trunk
11:28
Disable the PagerDontWrite() optimization for temp tables. It can cause database corruption if a page passed to PagerDontWrite() is dirty at the start of a transaction that is subsequently rolled back. check-in: 6341ab2f user: dan tags: trunk
2016-05-03
19:40
Minor style tweaks in the MSVC makefile. check-in: 1b43358f user: mistachkin tags: trunk
19:36
Add the experimental SQLITE_FCNTL_WIN32_GET_HANDLE file control. Leaf check-in: b6ddabe1 user: mistachkin tags: win32GetHandle
14:57
The session extension is disabled by default. To enable it using --enable-session on ./configure on unix and add SESSION=1 to the nmake on Windows. Or add -DSQLITE_ENABLE_SESSION and -DSQLITE_ENABLE_PREUPDATE_HOOK to build manually. check-in: bcaa650e user: drh tags: trunk
13:14
Turn the session extension off by default. Enable using --enable-session on configure scripts, or using the SESSION=1 argument to nmake on Windows. Closed-Leaf check-in: e462cde2 user: drh tags: session-make
02:43
Fix the build when SQLITE_ENABLE_DATA_PROTECTION is defined. check-in: 8f05e140 user: drh tags: apple-osx
00:04
Avoid left-shifts of signed integers. check-in: 0715ce16 user: drh tags: trunk
2016-05-02
19:05
Remove some randomness from test script temptable2.test. check-in: 5830cf72 user: dan tags: trunk
16:59
Fix a test case in temptable2.test so that it works on systems that lack a coherient cache (ex: OpenBSD) and thus do not support the "PRAGMA mmap_size" command. check-in: 088cf838 user: drh tags: trunk
15:00
Merge enhancements and bug fixes from trunk. check-in: f52765ee user: drh tags: apple-osx
13:57
Fix harmless LLVM compiler warnings in the srcck1.c utility program used during the build process. check-in: e4af9675 user: drh tags: trunk
12:18
Disable the multi-row one-pass DELETE optimization when the WHERE clause contains a subquery. Fix for ticket [dc6ebeda9396087]. check-in: 3f221f59 user: drh tags: trunk
10:25
Improvements to the way the LIKE optimization is implemented, resulting in slightly smaller and faster code that is easier to test. check-in: 54c63b32 user: drh tags: trunk
2016-04-30
19:23
Change the way tester.tcl handes $argv so that in "permutations.test <permutation> <filename>" <filename> may be the name of any file in the test/ directory. check-in: 820c57bb user: dan tags: trunk
18:10
Remove an unnecessary branch from the OP_String8 opcode. check-in: 459a0b45 user: drh tags: trunk
17:19
More bug fixes to Lemon identified by Kelvin Sherlock. None of these have any impact on SQLite. check-in: 762bdc55 user: drh tags: trunk
02:59
Simplifications to the OP_Halt opcode implementation. check-in: daf4630f user: drh tags: trunk
2016-04-29
20:30
Fix the temporary directory search algorithm for unix so that it fails gracefully even if all candidate directories are inaccessible. This fixes a bug that was introduced by check-in [9b8fec60d8e]. check-in: 614bb709 user: drh tags: trunk
17:07
Fix the nolock VFS so that it supports shared memory. check-in: ce11f8e8 user: drh tags: apple-osx
16:01
Merge the latest enhancements from trunk. check-in: 91e5c07e user: drh tags: begin-concurrent
15:52
Merge enhancements from trunk, and in particular the TEMP file deferred I/O enhancements. check-in: 81b76901 user: drh tags: apple-osx
15:39
Postpone I/O associated with TEMP files for as long as possible, with the hope that the I/O can ultimately be avoided completely. check-in: 9d0a5ae0 user: drh tags: trunk
14:12
Fix test script temptable2.test so that it works with the "inmemory_journal" and "journaltest" permutations. Closed-Leaf check-in: b7bec7f2 user: dan tags: tempfiles-25
11:35
Merge latest trunk changes, including test case fixes, with this branch. check-in: 99794aca user: dan tags: tempfiles-25
11:33
Modify the permutations.test script so as to set any permutation specific configuration values before running each individual test script. Fix a mostly harmless buffer overread in the sessions module. check-in: 4cbd5024 user: dan tags: trunk
11:28
Lemon bug fix: Do not merge action routines unless their destructors are also identical. Problem and suggested fix reported on the mailing list by Kelvin Sherlock. check-in: 4792d6db user: drh tags: trunk
10:13
Fix an almost entirely harmless buffer overread in the sessions module. Closed-Leaf check-in: 89b0ee33 user: dan tags: permutations-fix
02:55
Some optimization comments added to vdbe.c. No functional changes to code. check-in: e7c22e3b user: drh tags: trunk
2016-04-28
22:29
Further simplifications and improved commentting on the rowset.c module, including several optimization comments. check-in: 9f15a520 user: drh tags: trunk
20:11
Comment changes only: Add several optimization marks in rowset.c. Add a header comment that explains what the various special comments mean. check-in: 8cdbe89a user: drh tags: trunk
19:23
Fix typo in comment. No changes to code. check-in: 9f6f17b5 user: mistachkin tags: trunk
18:53
Rearrange some code in the RowSet logic for clarity of presentation, while adding an /*OPTIMIZATION-IF-TRUE*/ comment. It should operate identically. check-in: 5748e643 user: drh tags: trunk
14:59
Merge latest changes from trunk with this branch. check-in: 45467ee4 user: dan tags: permutations-fix
14:54
Avoid running sessionfault.test and sessionfault2.test as part of the "inmemory_journal" permutation. check-in: 5973d3bf user: dan tags: permutations-fix
14:15
Use comments to mark several branches as optimizations. No changes to code. check-in: 33e62747 user: drh tags: trunk
09:53
Ensure that quota.test deletes the directory named "test.db" that it creates. check-in: 045edd4b user: dan tags: permutations-fix
03:52
Remove an unnecessary conditional from the sqlite3DecOrHexToI64() routine. check-in: fcf85bfe user: drh tags: trunk
00:32
Change the sqlite3Atoi64() routine so that it returns failure if not all of the input characters are consumed, even if it consumed all characters up to the first 0x00. This has no impact on external APIs as far as I can tell. check-in: 46d4ffff user: drh tags: trunk
2016-04-27
18:54
Modify the permutations.test script so as to set any permutation specific configuration values before running each individual test script. check-in: 2662d8fe user: dan tags: permutations-fix
15:24
More simplification of the sqlite3AtoF() routine. Add special comments to indicate branches that are for optimization purposes only and that give the correct answer even if always or never taken. check-in: 0065fe97 user: drh tags: trunk
11:24
Fix a couple of test script problems on this branch. Both related to the fact that temp database page sizes can no longer be changed by VACUUM or the backup API after the temp db is populated. check-in: 6bb5aa2b user: dan tags: tempfiles-25
02:35
Remove still more unnecessary branches from sqlite3AtoF(). check-in: 3adfe9f3 user: drh tags: trunk
2016-04-26
23:14
Further simplifications to sqlite3AtoF() to remove unneeded branches. check-in: dd69e53c user: drh tags: trunk
21:02
Remove an unnecessary line from the sqlite3AtoF() routine. check-in: a9d00749 user: drh tags: trunk
18:58
The pcache and the built-in VFSes should not use mutexes when SQLITE_CONFIG_SINGLETHREAD is set. check-in: 12418b10 user: drh tags: trunk
17:10
Fix an issue in temptable2.test preventing it from working with SQLITE_DEFAULT_AUTOVACUUM=1 builds. check-in: e790aac0 user: dan tags: tempfiles-25
16:03
Merge the checksymbols fix from trunk into this branch. check-in: 04911cee user: dan tags: tempfiles-25
13:13
Fix the "checksymbols" target in Makefile.in to be able to deal with the sqlite3changegroup family of interfaces. check-in: d819bfbd user: drh tags: trunk
2016-04-25
22:39
Add an sqlite3FaultSim() all to make it easier to simulate IO errors in a VACUUM commit. check-in: 8bfde416 user: drh tags: tempfiles-25
19:28
Remove an obsolete comment from the pager. No code changes. check-in: 36f97ca8 user: drh tags: tempfiles-25
19:25
Update the RBU vacuum code so that databases that use custom collation sequences can be vacuumed. check-in: 7dd48c10 user: dan tags: trunk
19:20
Fix some unreachable branches in the pager. check-in: 3ae44770 user: drh tags: tempfiles-25
15:03
Merge bug fix from trunk. check-in: a905d5e0 user: drh tags: tempfiles-25
02:20
When checking for the WHERE-clause push-down optimization, verify that all terms of the compound inner SELECT are non-aggregate, not just the last term. Fix for ticket [f7f8c97e97597]. check-in: ec215f94 user: drh tags: trunk