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SQLite training in Houston TX on 2019-11-05 (details)
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100 check-ins occurring around 1dd828088d6981df.

2017-10-12
11:33
Fix a potential crash that may follow an OOM or other system error in the shell tool. check-in: c36761e1 user: dan tags: trunk
11:13
Update some test cases to work with SQLITE_OMIT_VIRTUALTABLE and DEFAULT_AUTOVACUUM builds. check-in: 4b68f424 user: dan tags: trunk
10:28
Make sure the tableColumnList() routine of the command-line shell does not cause a null-pointer dereference in an error condition. check-in: 5d0ceb8d user: drh tags: branch-3.21
01:24
Merge fixes from the 3.21 branch. check-in: 18d4654f user: drh tags: dbpage
01:19
Fix a typo in a numeric constant in an assert() - a bug that has been present in the code since check-in [79e22b95038] on 2010-03-30. check-in: f0a2724f user: drh tags: branch-3.21
2017-10-11
20:27
Add test file mmapwarm.test. With tests for the sqlite3_mmap_warm() extension. check-in: 5c4980ef user: dan tags: trunk
20:26
Merge latest trunk changes with this branch. check-in: 2719cf5c user: dan tags: schemalint
20:10
Change some internal details to bring this branch closer to the code on trunk. check-in: 58e42cfd user: dan tags: schemalint
18:26
Add the checkfreelist extension to the command-line shell. check-in: 48418f2e user: drh tags: dbpage
18:21
Check that the leaf count on each freelist trunk page is in range as part of checkfreelist processing. check-in: 4e894062 user: dan tags: dbpage
18:00
Add new extension "checkfreelist", which uses sqlite_dbpage to check that there are no invalid entries on the database free-list. check-in: 21930ef5 user: dan tags: dbpage
17:51
Convert the implementation of the ".dbstat" dot-command of the command-line shell to use the sqlite_dbpage table. check-in: 497409e1 user: drh tags: dbpage
17:50
Make JSON1 defines consistent in the makefiles for MSVC. check-in: 31eee0e4 user: mistachkin tags: branch-3.21
17:25
Enable JSON by default in the Windows command-line shell sqlite3.exe. check-in: 79c96121 user: drh tags: branch-3.21
17:13
Enable sqlite_dbpage and dbstat virtual tables in the shell, by default. check-in: 01bf856c user: drh tags: dbpage
15:02
Get writes working on the sqlite_dbpage virtual table. Add a few test cases. check-in: a8b264d8 user: drh tags: dbpage
13:48
Initial implementation of the "sqlite_dbpage" virtual table. Currently it is read-only and has a place-holder xBestIndex. check-in: c2c1d656 user: drh tags: dbpage
12:20
In the speed-check.sh test script, allow an additional test-name argument which becomes the comparison baseline, in place of "trunk". check-in: 0245adff user: drh tags: trunk
11:12
Create a branch for the 3.21.0 release. Development continues on trunk. check-in: 0f160a8a user: drh tags: branch-3.21
2017-10-10
20:11
Add new extension "bgckpt" in ext/misc/bgckpt.c. For experimenting with running wal2 mode checkpoints in a background thread. check-in: 63955442 user: dan tags: wal2
13:37
DROP TABLE now works for WITHOUT ROWID tables and the SQLITE_OMIT_AUTOVACUUM compile-time option. Fix for ticket [e651b1341861d6] check-in: b8c1b5a5 user: drh tags: trunk
2017-10-09
19:50
Merge latest trunk changes with this branch. check-in: d218d815 user: dan tags: wal2
19:49
Add a header comment to wal.c describing the differences between wal and wal2 mode. check-in: 9c80cd20 user: dan tags: wal2
2017-10-08
02:22
Fix harmless compiler warnings in FTS5 seen with MSVC. check-in: 5594a121 user: mistachkin tags: trunk
2017-10-07
23:58
Fix harmless compiler warning seen with MSVC. check-in: 39d920d1 user: mistachkin tags: trunk
23:35
Revise variable declaration moved in the previous check-in so sqlite3VdbeReset() is consistent with sqlite3VdbeRewind(). check-in: 63d1b425 user: mistachkin tags: trunk
23:31
Fix C99-style variable declaration issue seen with older versions of MSVC. check-in: 14b181e8 user: mistachkin tags: trunk
19:55
Ignore the *-wal2 file if the *-wal file is zero bytes in size. check-in: f7360fad user: dan tags: wal2
13:37
Check in test file wal2simple.test. check-in: 8932b2f1 user: dan tags: wal2
2017-10-06
18:00
Add tests for the example fts3 "rank" function that appears in the documentation. check-in: 702b137a user: dan tags: trunk
14:25
Merge latest trunk changes into this branch. check-in: 7e435178 user: dan tags: wal2
14:08
Fix a bug in recovering wal2 mode databases introduced by the previous commit. check-in: 9e1502e1 user: dan tags: wal2
13:43
Fix frame overwriting in wal2 mode. check-in: a4b02bc9 user: dan tags: wal2
2017-10-05
20:57
Fix compiler warnings that come up with SQLITE_OMIT_WAL. check-in: 8ca0fa8d user: drh tags: trunk
20:02
Fix a problem building with SQLITE_OMIT_WAL defined. check-in: 373b0ace user: dan tags: trunk
19:12
Fix the command-line shell so that the ".schema --indent" command does a better job of dealing with \r\n in the middle of a CREATE statement in the schema. check-in: 4258fb57 user: drh tags: trunk
18:14
Fix test case failures on this branch. check-in: 16decc13 user: dan tags: wal2
11:29
Disable the delta checksum verification in RBU by default. Reenable it using -DRBU_ENABLE_DELTA_CKSUM, if desired. check-in: d22c99b6 user: drh tags: trunk
2017-10-04
20:57
Add experimental mode that uses two wal files. Activated using "PRAGMA journal_mode = wal2". check-in: e2fc5c81 user: dan tags: wal2
18:26
Updates to requirements marks. check-in: 40964a4e user: drh tags: trunk
17:05
Update the speedtest1 program so that it prints the output of "PRAGMA compile_options" if the -stats option is specified. check-in: 7c69f8f1 user: dan tags: trunk
16:35
Fix typos in session extension header comments. No changes to code. check-in: 182ec9d6 user: mistachkin tags: trunk
14:13
New test cases for ticket [b899b6042f97f5] derived from a bug report on the mailing list from Wout Mertens. check-in: ef94ea06 user: drh tags: trunk
12:08
Amend recent changes to busy.test to avoid failing with SQLITE_ENABLE_STAT4 builds. check-in: 9ff49441 user: dan tags: trunk
12:06
Turn restriction 20 on the query flattener into an assert since the situation restricted can no longer occur because of the more aggressive use of co-routines. check-in: 4464f40c user: drh tags: trunk
10:39
Add tests to verify that the busy-handler is invoked correctly when processing "PRAGMA optimize" and ANALYZE commands. check-in: fb83c3d8 user: dan tags: trunk
05:59
Remove a redundant restriction from the query flattener. check-in: 66629b2a user: drh tags: trunk
02:30
Fix a minor typo in the query flattener header comment. No code changes. check-in: d050dc60 user: drh tags: trunk
2017-10-03
19:53
Simplify the computation of types on columns of a view. check-in: 772b0db1 user: drh tags: trunk
18:35
Do not enable SELECT tracing with -DSQLITE_DEBUG. Require the -DSQLITE_ENABLE_SELECTTRACE compile-time option to enable SELECT tracing. check-in: f5c39583 user: drh tags: trunk
17:29
Add some OK_IF_ALWAYS_TRUE() marks on optimization branches in select.c. check-in: 1dd82808 user: drh tags: trunk
17:17
Remove an unused variable from sqlite3Insert() and fix harmless compiler warnings associated with -DSQLITE_MUTATION_TEST. check-in: 7be760e9 user: drh tags: trunk
16:57
Fix the sqlite3_column_decltype() interface to return the correct datatype when the value comes through a CTE. check-in: 966438bd user: drh tags: trunk
14:24
The simplification to sqlite3SelectExpand() in last night's [3a4ffb21] check-in was not completely correct. This adjustment is needed for correct OOM handling in some configurations. check-in: c5ad5e16 user: drh tags: trunk
03:24
Simplification to the logic that computes column type names. Update: Does not work in all configurations. Closed-Leaf check-in: f10ece96 user: drh tags: does-not-work
03:01
Do not compute column and row size estimates for the transient Table objects associated with the result set of a SELECT statement, since those estimates are never used for anything constructive. check-in: e4342fd4 user: drh tags: trunk
2017-10-02
23:50
Mark a single branch within sqlite3SelectExpand() as an optimization. check-in: 3a4ffb21 user: drh tags: trunk
23:30
Simplification to sqlite3SelectPrep() for improved testability. check-in: 5bf2ccb9 user: drh tags: trunk
21:29
Add the OK_IF_ALWAYS_TRUE() and OK_IF_ALWAYS_FALSE() macros for marking conditionals that improve performance but do not change the outcome. check-in: 6035c9b2 user: drh tags: trunk
13:20
Avoid using lookaside memory for persistent virtual table structures. check-in: d815f255 user: drh tags: trunk
02:52
The query planner now always prefers to implement a FROM-clause subquery using a co-routine rather than flattening the subquery into the outer query. check-in: c9104b59 user: drh tags: trunk
02:32
Improvements to a comment in lempar.c. No code changes. check-in: 8000d230 user: drh tags: trunk
2017-09-30
11:47
More details in the header comment of pushDownWhereTerms(). No changes to code. Closed-Leaf check-in: 92848623 user: drh tags: prefer-coroutine-sort-subquery
10:50
Make sure the SQLITE_Stat34 optimization switch is always 0x800, a value which is hard-coded in the TH3 test suite. check-in: 6aed4ea3 user: drh tags: prefer-coroutine-sort-subquery
01:25
Fix unreachable conditionals and revise a testcase that was made obsolete by the changes on this branch. check-in: 71f0adf7 user: drh tags: prefer-coroutine-sort-subquery
2017-09-29
22:13
Always render a subquery that is not part of a join as a co-routine. check-in: 6b1651d7 user: drh tags: prefer-coroutine-sort-subquery
16:08
Merge the query flattener comment improvements from trunk. check-in: f62cd4d9 user: drh tags: prefer-coroutine-sort-subquery
16:07
Clean up the comments on the query flattener to more clearly and accurately express the conditions under which the flattener is able to run. check-in: 0840f9f8 user: drh tags: trunk
14:31
Merge changes from trunk. check-in: 06f432fb user: drh tags: prefer-coroutine-sort-subquery
12:44
Make sure the 6th parameter to the authorizer callback for view subqueries has the correct view name. check-in: 2a45bbc9 user: drh tags: trunk
12:12
Better names for subqueries in EXPLAIN comments. check-in: 04ef40a8 user: drh tags: trunk
2017-09-28
20:06
Do not flatten subqueries that contain an ORDER BY or GROUP BY clause and can be implemented using a co-routine. check-in: 042d655d user: drh tags: prefer-coroutine-sort-subquery
17:29
Remove the (undocumented) query-planner control that prevents a "SELECT ALL" subquery in FROM clause from being implemented as a co-routine. This control was added by [a29e117d7ec], where it was called a "stop-gap". check-in: ff2f5a31 user: drh tags: trunk
16:56
Fix over-length source code lines in select.c. No logic changes. check-in: fd3267ef user: drh tags: trunk
13:47
Fix an issue introduced by check-in [4cd2a9672c59] (2017-03-03) that could allow a negative value in the 3rd parameter to memmove() when defragmentPage() is called on a btree page with a corrupted freeblock list. The corruption is now detected early and results in an SQLITE_CORRUPT return before the memmove() is reached. check-in: 5b9ae693 user: drh tags: trunk
01:58
Add new routines to simplify dealing with collating sequences in expressions: sqlite3ExprNNCollSeq() and sqlite3ExprCollSeqMatch(). check-in: 490e488e user: drh tags: trunk
01:09
Indexes on expressions with a COLLATE clause are able to satisfy an ORDER BY with the same COLLATE clause. check-in: 04130018 user: drh tags: trunk
00:01
In two places, change the magic number -1 to its proper symbol XN_ROWID. check-in: 80277d2f user: drh tags: trunk
2017-09-27
16:51
Disable tests for the LIKE optimization when ICU is enabled, since the LIKE optimization only works for the built-in LIKE operator and ICU overrides the built-in. check-in: f5ef2e1b user: drh tags: trunk
2017-09-25
09:37
Add an extra snapshot related test case. check-in: 24a95e14 user: dan tags: trunk
2017-09-23
07:46
Experimental change so that snapshot transactions always lock the wal file - preventing writers or truncate-checkpointers from wrapping it. Closed-Leaf check-in: d71eeaab user: dan tags: snapshots-lock-wal
2017-09-22
20:18
Merge in all the trunk enhancements of the previous 7 months. The LIKE optimization has stopped working when there is an ESCAPE - that problem will be addressed in a subsequent check-in. Leaf check-in: 8d2a1cca user: drh tags: est_count_pragma
16:23
Use the updated Win32 VFS semantics for winOpen from check-in [5d03c738e9] for WinRT, et al, as well. check-in: 2c03d8b8 user: mistachkin tags: trunk
12:52
Partial backout of check-in [e0af9a904076]. It turns out we do need some extra space at the end of the record blob as an overrun area to use when decoding a maliciously malformed record. check-in: 403b88a8 user: drh tags: trunk
11:09
Cherrypick [ec37ad6d08] into this branch. With this patch, if SQLITE_SHARED_MAPPING is defined at build-time SQLite will use a single memory mapping for multiple connections to the same database file within a single process. check-in: c7a5880d user: dan tags: begin-concurrent
10:49
Merge latest trunk changes into this branch. check-in: 307b802e user: dan tags: begin-concurrent
00:24
Update the configure script so that it looks for tclsh8.7 ahead of tclsh8.6. check-in: 0a12915b user: drh tags: trunk
2017-09-21
20:43
In the Windows VFS, when trying to open a database file read/write, if it fails check to see if the file exists and is read-only and immediately fall back to a read-only open attempt, rather than running the AV retry loop. check-in: 5d03c738 user: drh tags: trunk
20:03
In the Windows VFS, do not emit an SQLITE_CANTOPEN error log message when falling back from SQLITE_OPEN_READWRITE to SQLITE_OPEN_READONLY. Wait until the open fails completely. check-in: fa3f5bcc user: drh tags: trunk
19:08
Fix harmless UB in the ICU extension. check-in: 68e9a840 user: drh tags: trunk
14:03
The sqlite3_snapshot_describe() interface useful for debugging snapshot logic. Leaf check-in: 3fbfa9a8 user: drh tags: sqlite3_snapshot_describe
13:11
Fix a potential use of an uninitialized pointer in RTree following an OOM error. check-in: fd4ec0cd user: drh tags: trunk
10:24
Fix a bug in tool/mksourceid.c: The mksourceid.c program was incorrectly including the "# Remove this line" line of the Fossil-generated "manifest" file in the SHA3 hash. That means that all SQLITE_SOURCE_IDs for trunk versions going back to check-in [30966d56] (2017-08-22) are incorrect. check-in: 65765222 user: drh tags: trunk
01:04
Revert one performance improvement changes from check-in [3b3e32d4cd07] as it was causing a reference to an uninitialized value. check-in: f8b1c64d user: drh tags: trunk
00:49
Fix the rendering of the P4_INTARRAY argument to the OP_IntegrityCk opcode in the output of EXPLAIN. check-in: adc12c83 user: drh tags: trunk
2017-09-20
18:47
Size and performance optimization on sqlite3VdbeMemGrow(). check-in: 4b3f7eac user: drh tags: trunk
18:07
The BLOB returned by sqlite3VdbeMemFromBtree() does not need to be zero-terminated. check-in: e0af9a90 user: drh tags: trunk
17:49
Small size and performance optimization in the bytecode engine. check-in: 3b3e32d4 user: drh tags: trunk
10:47
Improved resolution of large integer values in "CAST(x AS NUMERIC)". check-in: 7f2bd4ff user: drh tags: trunk
09:09
Updates to the "lemon.html" document received from Andy Goth. check-in: 5b2002f3 user: drh tags: trunk