7 Commits

Author	SHA1	Message	Date
alexpeshkoff	5729790ed6	1. Applied class MetaName ... 2. Small generic cleanup	2005-05-12 18:28:04 +00:00
dimitr	c01b84565a	Tuned reduce factors again.	2005-04-23 12:16:11 +00:00
dimitr	4410fb9f97	1) Fixed wrong index usage for nested loop joins (indexed relationship must be a requirement). ... 2) Better optimizaton for tables with zero selectivities. 3) Fixed wrong choice of index in the case of the same selectivity and number of indices. 4) Fixed wrong total selectivity calculated for compound non-equality comparisons. 5) Some constants tuning based on two weeks of the extreme testing. Subject of Arno's review, although all my tests show much better results without any regressions.	2005-04-15 14:54:59 +00:00
arnobrinkman	bb3560eb92	cosmetic changes	2005-02-17 00:17:05 +00:00
robocop	5a951268ae	Don't know if gcc is going to accept the const member functions. There's a MemoryPool in the middle.	2005-02-14 06:05:57 +00:00
arnobrinkman	6f7813bf28	Remove some temp-code that was still left	2005-02-12 17:06:12 +00:00
arnobrinkman	283d7f0d8c	Add new optimizer logic for handling : ... ODS11: - segment-selectivity - better support for IS NULL - better support for STARTING WITH - matching both OR and AND nodes to indexes - pick better JOIN order based on cost rules ODSx: - Indexed order on OUTER JOIN queries	2005-02-10 22:54:17 +00:00