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This Day In History For 2020-09-02

1 Year Ago (more context)

2019-09-02
22:14 Fixed ticket [29f635e0]: IS NULL unexpectedly evaluates to TRUE plus 7 other changes (artifact: 781749e7 user: drh)
22:13
Fix a bug introduced earlier today by check-in [88833a9c2849c959]. Ticket [29f635e0af71234b] (check-in: 6e7b4527 user: drh tags: trunk)
19:22 New ticket [29f635e0] IS NULL unexpectedly evaluates to TRUE. (artifact: 34ebd7c7 user: mrigger)
14:46
Fix a potential crash in fts5 caused by using an auxiliary function on a "special" query like '*id' or '*reads'. (check-in: 9490683a user: dan tags: trunk)
02:22 Fixed ticket [2841e99d]: Different rounding when converting TEXT to REAL plus 6 other changes (artifact: 59028a40 user: drh)
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: 88833a9c 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: 0c946f08 user: drh tags: trunk)
00:58 Fixed ticket [57af00b6]: Expression computed on row yields incorrect result plus 4 other changes (artifact: 608fe566 user: drh)
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: 0658c16e user: drh tags: trunk)

4 Years Ago (more context)

2016-09-02
23:56
Merge recent changes from trunk. (check-in: c7271fbd user: drh tags: rowvalue)
21:34
Add a test case for the OOM handled by the previous commit. (check-in: 9bdf7ca1 user: dan tags: trunk)
21:17
Correctly detect an OOM occurring in the setDestPgsz() subroutine of backup. (check-in: d9d8a048 user: drh tags: trunk)
20:44 Edit [3a9f4750a6e65c16|3a9f4750]: Move to branch mistake. (artifact: 1305d4e8 user: drh)
17:27
The previous commit could miss an SQLITE_NOMEM error. This commit catches it. (Closed-Leaf check-in: 3a9f4750 user: dan tags: mistake)
17:18
Within a backup operation, ensure that a read-transaction is opened on the source database before its page size is read. This ensures the page-size used to write to the backup database is the same as its actual page-size, which is important for ZipVFS databases. (check-in: 7908fc60 user: dan tags: trunk)

5 Years Ago (more context)

2015-09-02
21:00
Optimizations to the printf formatter. (check-in: a3b35dde user: drh tags: trunk)
19:48
Further tests to raise coverage of fts5 synonym code to 100%. Fix a dropped error code in the same. (check-in: bdedd838 user: dan tags: fts5-incompatible)
18:56
Fix an issue with fts5 synonyms and NEAR(...) queries. (check-in: f2e59070 user: dan tags: fts5-incompatible)
18:40
Add and use the sqlite3VdbeChangeOpcode() routine. Simplify the implementation of the other sqlite3VdbeChange*() routines. (check-in: 0a5b00e4 user: drh tags: trunk)
18:19
Add the sqlite3VdbeAddGoto(v,i) routine as a shorthand for sqlite3VdbeAddOp2(v,OP_Goto,0,i). (check-in: be78f413 user: drh tags: trunk)
17:55
Change sqlite3_sql() so that it always returns the SQL text of the prepared statement, if the text is available, even if the the prepared statement was generated using sqlite3_prepare() instead of sqlite3_prepare_v2(). Also include some minor comment fixes and code simplifications. (check-in: 2f5472cf user: drh tags: trunk)
17:34
Fix a problem with fts5 synonyms and phrase queries. Also fix an OOM handling bug in fts5. (check-in: a4c35fa2 user: dan tags: fts5-incompatible)
16:51
Small simplification to the EXPLAIN QUERY PLAN logic. (check-in: d1592d20 user: drh tags: trunk)
15:37
Use sqlite3XPrintf() instead of sqlite3StrAccumAppend() in a few places for better performance and a smaller footprint. (check-in: 82355e41 user: drh tags: trunk)
14:56
The sqlite3_memory_alarm() interface has been deprecated and undocumented for almost 8 years (since version 3.5.3). Change it into a no-op. (check-in: 5d3f5df4 user: drh tags: trunk)
14:45 Edit [6e0298cdcb3b900f|6e0298cd]: Mark "Closed". (artifact: a23f83d8 user: drh)
14:44 Edit [6e0298cdcb3b900f|6e0298cd]: Move to branch mistake. Edit check-in comment. (artifact: d2c81439 user: drh)
14:17
Fix a problem handling OOM conditions within fts5 queries that feature synonyms. (check-in: 11fa9808 user: dan tags: fts5-incompatible)
12:52
This change is not correct for the boundary case of nCellKey==0. Was: Small performance gain and size reduction in sqlite3VdbeIdxKeyCompare(). (Closed-Leaf check-in: 6e0298cd user: drh tags: mistake)
08:22
Fix a problem with fts5 synonyms and the xQueryPhrase() auxiliary function API. (check-in: cf3e45e7 user: dan tags: fts5-incompatible)

10 Years Ago (more context)

2010-09-02
19:01
Move the test for an (illegal) scalar sub-query that returns more than one column to earlier in SELECT processing in order to avoid an assert() that can happen later on. (check-in: a55842cf user: dan tags: trunk)
18:13
Fix an off-by-one error in the scratch memory allocator. (check-in: 5a959160 user: drh tags: trunk)
17:15
Use sqlite3_mutex_notheld() instead of !sqlite3_mutex_held() inside of assert() statements since the former works when mutexing is disabled while the latter does not. (check-in: 2211486b user: drh tags: trunk)
14:35
Add test case to verify the previous change is correct. (check-in: 2a5eed35 user: dan tags: trunk)
14:00
Fix the computation of the offset on the mmap() for the Nth shared memory region. Because of the way shared memory is accessed, the old computation, though wrong, still happened to always get the right answer. Nevertheless, it is good to do the computation correctly. (check-in: 36397f62 user: drh tags: trunk)
11:53
Add tests for the EXISTS operator to e_expr.test. (check-in: 9f9a95cc user: dan tags: trunk)
10:08
If MEM_STATUS is disabled, avoid holding the STATIC_MEM mutex when calling the user-defined xMalloc method. Holding the mutex causes problems for memsys3 and memsys5. (check-in: 4f20f8ba user: dan tags: trunk)
04:30
Fix a few typos. Update evidence marks. (check-in: c90a68b7 user: shaneh tags: trunk)