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Overview
| Comment: | Make sure that the optimizer realizes that an "x IS NULL" contraint does not necessarily give a single-row result even on a UNIQUE index. Ticket #3824. (CVS 6545) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
207335fdbf992a2f5bc5982b3163a380 |
| User & Date: | drh 2009-04-24 14:51:42 |
Context
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2009-04-24
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| 15:46 | Get rid of the special RowSet processing in where.c and move that into clients. Added the WHERE_DUPLICATES_OK option to eliminate an unnecessary RowSet during DELETE with a WHERE clause containing ORs. (CVS 6546) check-in: 98606bee user: drh tags: trunk | |
| 14:51 | Make sure that the optimizer realizes that an "x IS NULL" contraint does not necessarily give a single-row result even on a UNIQUE index. Ticket #3824. (CVS 6545) check-in: 207335fd user: drh tags: trunk | |
| 10:13 | Make selecting the asynchronous IO file-locking mode a runtime operation. Still untested. (CVS 6544) check-in: 577277e8 user: danielk1977 tags: trunk | |
Changes
Changes to src/where.c.
Added test/tkt3824.test.