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24 check-ins using file src/update.c version 1487ee46

2019-10-26
17:08
Performance optimization on sqlite3GenerateConstraintChecks() - bypass the loop that checks each column for NOT NULL constraints if it is known in advance that the table has no NOT NULL constraints. (check-in: e3c3f4d7 user: drh tags: trunk)
16:38
Clarify some comments and add assert() and testcase() macros to the replace-trigger recheck logic for ticket [c1e19e12046d23fe] (check-in: 8c0042bd user: drh tags: trunk)
16:02
Fix a problem in the legacy ".explain on" formatting when it is used on a query with more than 8 output columns. (check-in: 070b4982 user: drh tags: trunk)
15:40
Minor changes to help ensure the pointer returned by sqlite3VdbeGetOp() is not used after it becomes invalid. (check-in: 346bdd49 user: drh tags: trunk)
12:27
Overnight, OSSFuzz helpfully pointed out a potential use-after-free bug in yesterdays changes, involving continued use of a pointer after the memory pointed to had been realloc()-ed. Thanks Google. (check-in: c422afb5 user: drh tags: trunk)
01:43
Add missing VdbeCoverage() macro. Fix an off-by-one error in partial index handling. New test cases. Ticket [c1e19e12046d23fe] (check-in: 41cc8e3d user: drh tags: trunk)
00:04
If replace triggers are run during uniqueness checking, then rerun all uniqueness checks a second time using the ABORT algorithm. Fix for ticket [c1e19e12046d23fe] (check-in: fbac0c65 user: drh tags: trunk)
2019-10-25
14:46
Performance optimization in sqlite3BtreeCursor(). (check-in: ea068b09 user: drh tags: trunk)
2019-10-24
20:35
In fts5, fix a case of overreading a buffer by 1 byte when counting characters in malformed utf-8. Fix for [dd1f67bf]. (check-in: 8d964e1c user: dan tags: trunk)
19:35
Correction to check-in [bec5b6d4d083556d] so that it detects *all* triggers that might perturb the insertion cursor. Ticket [50c09fc2cf0d91ce]. (check-in: 521f1d36 user: drh tags: trunk)
2019-10-23
21:00
Add an experimental set of UUID processing functions as the uuid.c extension in ext/misc/uuid.c. (check-in: 1a6e0093 user: drh tags: trunk)
18:14
Add uuid_string and uuid_blob functions (Leaf check-in: 97ba442b user: numist tags: uuid-funcs)
18:09
When a vector comparison appears in the WHERE clause and the constraint side has a COLLATE clause on the first term of the vector, be sure to honor that COLLATE clause. Ticket [135c9da7513e5a97]. (check-in: 978b2d20 user: drh tags: trunk)
18:01
Create new branch named "uuid-funcs" (check-in: 815dc043 user: numist tags: uuid-funcs)
2019-10-22
19:51
Disqualify row-value comparisons for use by an index if the right-hand side has an affinity that does not match the index. Fix for ticket [6ef984af8972c2eb] (check-in: 5c118617 user: drh tags: trunk)
11:29
Previous check-in to fix [b47e3627ecaadbde] was incomplete. This check-in completes the fix and adds a test cases. (check-in: c7da1c01 user: drh tags: trunk)
01:00
Move the sqlite3LocateCollSeq(), sqlite3FindCollSeq(), and sqlite3GetCollSeq() routines so that they are all beside one another in the callback.c source file. No logic changes. (check-in: 9ff80a9b user: drh tags: trunk)
00:03
When flipping ("commuting") a comparison operator, set the new EP_Commuted bit rather than adding extra EP_Collate bits, to single later processing that the order of precedence for COLLATE operators is inverted. Fix for ticket [b47e3627ecaadbde] (check-in: 90f7c477 user: drh tags: trunk)
2019-10-21
23:41
Add a VdbeCoverage() macro that was omitted from check-in [eea1e7aa57e74c43]. (check-in: cd2317d0 user: drh tags: trunk)
16:15
Try to fix a harmless compiler warning reported by ICC. (check-in: 7f41b44c user: drh tags: trunk)
2019-10-20
08:26
Fix a resource leak in fts5 that could occur if an auxiliary function is called from within a query that does not use the full-text index. (check-in: b528bdcd user: dan tags: trunk)
2019-10-18
15:58
Enhance the ".imposter" command in the CLI so that the first argument can be an existing WITHOUT ROWID table instead of an index. The resulting imposter is the same table, but with columns in storage order and with all constraints removed. (check-in: 9dc0d345 user: drh tags: trunk)
2019-10-17
15:41
Avoid an infinite loop in fts3/4 incremental-merge in the case where the lowest level in the database contains segments but no data (because there is a delete-marker for each valid entry). Fix for [bf1aab89]. (check-in: 35beaee0 user: dan tags: trunk)
2019-10-16
17:46
Enhancements to SQL query normalization for UPDATE statements. (check-in: bba975c7 user: mistachkin tags: trunk)