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6 check-ins using file src/vdbe.c version d4c8224c

2011-09-04
01:27
Fix a compiler warning about an unused parameter in the merge-sort code. (check-in: 6b657ae7 user: drh tags: trunk)
01:11
Improve the testability of the merge-sort logic. (check-in: b5179baf user: drh tags: trunk)
2011-09-03
17:07
Performance improvements to the external merge-sorter. Keep content on an in-memory linked lists rather than an ephemeral table prior to spilling to disk. Use the external merge-sorter to implement ORDER BY and GROUP BY in addition to CREATE INDEX. (check-in: 4c43e8b2 user: drh tags: trunk)
16:42
Simplification and performance tweaks in vdbeSorterMerge(). (Closed-Leaf check-in: 99e34bdc user: drh tags: merge-sort)
14:36
Reduce the number of VdbeRecordUnpack() calls made in vdbesort.c. (check-in: 666c2c3c user: dan tags: merge-sort)
00:17
The build works again with -DSQLITE_OMIT_MERGE_SORT. The merge-sorter now avoids spilling to disk (letting the in-memory linked list grow without bound) if PRAGMA temp_store=3. (check-in: 68e26c44 user: drh tags: merge-sort)