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50 check-ins occurring around 54553bf16fabd72d.

2019-09-04
06:56
Fix handling of NULL, text and blob values in window queries that use "RANGE BETWEEN A FOLLOWING AND B FOLLOWING", or "B PRECEDING AND A PRECEDING", where A>B. (check-in: cb3e2be674 user: dan tags: trunk)
2019-09-03
19:40
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: b54aa18b0f user: dan tags: branch-3.18)
19:29
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: b584fd36f7 user: dan tags: branch-3.9)
18:43
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (Leaf check-in: 0770363b30 user: drh tags: branch-3.19)
18:36
Fix a buffer overread that could occur when running fts5 prefix queries inside a transaction. (check-in: 68b898381a user: drh tags: branch-3.22)
18:04
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 8452fd5499 user: drh tags: branch-3.22)
17:55
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 34cd2d929e user: drh tags: branch-3.19)
17:46
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 0a1cce496c user: drh tags: branch-3.18)
17:39
Disable the undocumented rtreenode() SQL function that is only used for testing, except when doing a build that is specifically intended for testing. (check-in: 7b4583f932 user: drh tags: branch-3.9)
16:23
Updates to the default settings in Makefile.linux-gcc. (check-in: 3044cf6917 user: drh tags: trunk)
14:27
When we play games with COLLATE in order to commute an operator in the WHERE clause processing, be sure not to use the commuted operator to qualify a partial index, as insufficient COLLATE information is preserved to verify that the expression will correctly qualify the index. Ticket [767a8cbc6d20bd68] (check-in: 5351e920f4 user: drh tags: trunk)
2019-09-02
22:13
Fix a bug introduced earlier today by check-in [88833a9c2849c959]. Ticket [29f635e0af71234b] (check-in: 6e7b4527d3 user: drh tags: trunk)
14:46
Fix a potential crash in fts5 caused by using an auxiliary function on a "special" query like '*id' or '*reads'. (check-in: 9490683ae8 user: dan tags: trunk)
02:21
When applying the IN_INDEX_NOOP optimization and the LHS has REAL affinity, also apply REAL affinity to each element of the RHS. Ticket [2841e99d104c6436]. (check-in: 88833a9c28 user: drh tags: trunk)
01:25
Fix an obsolete comment that defines the meaning of one of the parameters to the sqlite3FindInIndex() subroutine. No changes to code. (check-in: 0c946f0846 user: drh tags: trunk)
00:58
When computing an expression value for an index-on-expression or a CHECK constraint and the expressions uses a REAL table column, but the value of that column is an integer (in other words, when it is using the store-real-as-integer optimization) be sure to promote the value to real before evaluating the expression. Ticket [57af00b6642ecd68]. (check-in: 0658c16e31 user: drh tags: trunk)
2019-09-01
23:36
Remove an obsolete paragraph from the OP_Column documentation. No code changes. (check-in: f6d8956cf8 user: drh tags: trunk)
2019-08-31
20:29
Fix a harmless compiler warning. (check-in: 63c67a54b4 user: drh tags: trunk)
20:26
Mark new VDBE branches never taken. (check-in: 83c2adffbf user: drh tags: trunk)
20:13
Improvements to the algorithm that determines which SELECT in a sequence of nested SELECT statements that an aggregate function belongs to. This resolves an issue identified by dbsqlfuzz. (check-in: d768007473 user: drh tags: trunk)
17:14
If a DELETE trigger fired by an UPDATE OR REPLACE statement deletes the row being updated, do not attempt to proceed with the original UPDATE operation. Fix for [d6a0fbc1]. (check-in: 4145b3e050 user: dan tags: trunk)
01:33
Remove some affinity tests that became unreachable due to the prior change. (check-in: e2db1123fa user: drh tags: trunk)
2019-08-30
23:56
When the affinity of a table column is INT or REAL, make the affinity of corresponding index columns NUMERIC. This increases the precision of index lookups for large numbers so that it matches the precision of ordinary comparison operators. Ticket [40812aea1fde9594] (check-in: e0d909c740 user: drh tags: trunk)
23:15
Make sure OP_RealAffinity has been applied to all columns of type REAL in the excluded.* pseudo-table of an UPSERT. Ticket [5a3dba8104421320] (check-in: 67381daded user: drh tags: trunk)
21:52
Improvements to VDBE tracing. No changes to code in normal deliverables. (check-in: 54553bf16f user: drh tags: trunk)
19:45
Add test case to window8.test. Also fix an error in a comment in window.c. (check-in: 2925bfa597 user: dan tags: trunk)
18:02
Back out the change at [47cd634c98b502d4] which was incorrect. Add a test case so that we don't accidently back out that change again. (check-in: 596ac2a4ea user: drh tags: trunk)
17:28
Add further comments to window.c. (check-in: 900464567b user: dan tags: trunk)
16:46
New test cases for window functions with RANGE BETWEEN and DESC NULLS FIRST. (check-in: f7002f86c7 user: drh tags: trunk)
16:14
Fix a bug in RANGE window functions that use "ORDER BY <expr> DESC NULLS FIRST" as the window-frame ORDER BY clause. (check-in: 39b4cad4a5 user: dan tags: trunk)
16:00
The expression "(X IS FALSE) IN (FALSE)" does not imply that X is NOT NULL. Ticket [f8f472cbc77ba9c9] (check-in: dd66134817 user: drh tags: trunk)
15:11
The expression "(X IS FALSE) BETWEEN FALSE AND TRUE" does not implie that X is not NULL. Ticket [fba33c8b1df6a915] (check-in: 057fb8b180 user: drh tags: trunk)
13:07
The expression "(x IS FALSE) IS FALSE" does not imply that X is not NULL. Ticket [a6408d42b9f44462] (check-in: 45ff2b1f26 user: drh tags: trunk)
2019-08-29
23:24
Remove a faulty testcase() macro. (check-in: 80124ae552 user: drh tags: trunk)
21:16
Improve vdbe branch coverage of NULLS LAST code. (check-in: e8e9f77d52 user: dan tags: trunk)
19:34
Fix other problems similar to ticket [c0390363]. (check-in: 96ff2ba9c4 user: dan tags: trunk)
16:48
Add a missing VdbeCoverage() macro. (check-in: 33da6092d3 user: drh tags: trunk)
16:17
Remove an unreachable branch in the NULLS LAST logic of RANGE window functions. (check-in: 47cd634c98 user: drh tags: trunk)
15:50
Fix another case where SQLite assumes that if "~(? AND FALSE)" is true, "?" must be non-null. (check-in: 616f5663b3 user: dan tags: trunk)
15:06
Avoid assuming that for "~ (? AND FALSE)" to be true, "?" must not be NULL, just as we do for "NOT (? AND FALSE)". Fix for ticket [c0390363]. (check-in: 84ae41fd2f user: dan tags: trunk)
14:25
Fix a potential buffer overrun in fts5 caused by corrupted database records. (check-in: c465d0eb47 user: dan tags: trunk)
00:27
Improve Lemon so that it enlarges some of its tables slightly in order to avoid having to index range checks on table lookups for a performance increase. (check-in: 4be6a23a18 user: drh tags: trunk)
2019-08-28
11:49
Fix an unreachable branch in sqlite3ParserFallback() (Closed-Leaf check-in: e059178b47 user: drh tags: lemon-optimization)
11:31
Further improvements to parser speed by enlarging lookup tables to eliminate the need to do range checking on the index prior to lookup. (check-in: 47d3e091ae user: drh tags: lemon-optimization)
02:09
Increase the size of the yy_lookahead table so that it is never necessary to down bounds checking on the index. (check-in: bafd872398 user: drh tags: lemon-optimization)
2019-08-27
19:59
Add support for "ORDER BY ... NULLS FIRST" and "ORDER BY ... NULLS LAST". Use this to fix ticket [f8a7060e]. (check-in: 94085fb3e7 user: dan tags: trunk)
17:59
The ALWAYS() added by the previous check-in was incorrect. Take it back out. (check-in: 336235db2b user: drh tags: trunk)
17:28
Add ALWAYS() to an always true conditional that results from the previous check-in. Add a test case for ticket [dbaf8a6820be1ece] to supplement those already checked into TH3. (check-in: aff2098047 user: drh tags: trunk)
17:01
Omit the "x IN (y)" to "x==y" optimization of check-in [e68b427afbc82e20] (and ticket [e39d032577df6942]) as it causes difficult affinity problems as demonstrated by ticket [dbaf8a6820be1ece] and the original assertion fault is no longer a factor due to countless other changes of the previous 5 years. (check-in: 7f5168a76a user: drh tags: trunk)
10:05
If a TEMP TRIGGER references an auxiliary schema, and that auxiliary schema is detached, move the trigger to reference the TEMP schema before completing the detach, so that the trigger does not hold a dangling schema pointer. Ticket [ac8dd4a32ba4322f] (check-in: 069c2f4c61 user: drh tags: trunk)