5 Commits

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