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9 check-ins using file src/update.c version 96172028

2009-04-24
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)
09:27
Improve comments and documentation of the asynchronous IO VFS module. (CVS 6543) (check-in: 92bc6be2 user: danielk1977 tags: trunk)
2009-04-23
19:08
os_win.c, winOpen(), changed to handle the SQLITE_OPEN_EXCLUSIVE flag and sharing modes in the same manner as os_unix.c. Ticket #3821. (CVS 6542) (check-in: 18fef3fc user: shane tags: trunk)
18:42
Updated misc. test scripts for Windows testing with gcc/cygwin; (CVS 6541) (check-in: 1e2c7159 user: shane tags: trunk)
18:41
Remove some incorrect async tests; (CVS 6540) (check-in: 03af25b3 user: shane tags: trunk)
14:58
Move the asynchronous IO code from src/test_async.c to ext/async/. Refactor it to be a standalone module and to support windows. (CVS 6539) (check-in: e71fb0fb user: danielk1977 tags: trunk)
13:22
Rework the column-cache mechanism to be more robust (and more correct). The column-alias cache is currently disabled, (CVS 6538) (check-in: dd4d67a6 user: drh tags: trunk)
2009-04-22
17:15
Eliminate the OP_VRowid opcode. The regular OP_Rowid now work for both regular and virtual tables. (CVS 6537) (check-in: ecbef450 user: drh tags: trunk)