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Author SHA1 Message Date
sergefp@mysql.com
93669bfe0b WL#2985 "Partition Pruning": 
- post-...-post review fixes
- Added "integer range walking" that allows to do partition pruning for "a <=? t.field <=? b"
  by finding used partitions for a, a+1, a+2, ..., b-1, b.
 2006-01-04 11:09:01 +03:00
sergefp@mysql.com
f2d603c245 WL#2985 "Partition Pruning": post-review fixes: Better comments 2005-12-29 09:32:46 +03:00
sergefp@mysql.com
b8d762031f add missing DROP TABLE [IF EXISTS] clauses 2005-12-26 10:16:36 +03:00
sergefp@mysql.com
2a3943dbec WL#2985 "Partition Pruning": post-review fixes: 
- Added more comments.
- Added a RANGE_OPT_PARAM::remove_jump_scans flag that disables construction of index_merge
  SEL_TREEs that represent unusable conditions like "key1part1<c1 OR key2part2<c2"
- make prune_partitions() function handle the case where range analysis produces a list of 
  index_merge trees (it turned out that this is possible, appropriate test case added).
- Other small fixes.
 2005-12-26 08:40:09 +03:00
sergefp@mysql.com
e1f49888bf WL#2985 "Partition Pruning" 2005-12-22 12:29:00 +03:00