2 commits

Author	SHA1	Message	Date
Sergei Golubchik	1efdd5a572	rename debug variable to debug_dbug, to make test pass in release builds ... (and to follow the naming conventons). keep old debug variable, but mark it as deprecated.	2011-12-15 22:07:58 +01:00
Sergey Petrunya	96e092dc73	Backport into MariaDB-5.2 the following: ... WL#2474 "Multi Range Read: Change the default MRR implementation to implement new MRR interface" WL#2475 "Batched range read functions for MyISAM/InnoDb" "Index condition pushdown for MyISAM/InnoDB" Igor's fix from sp1r-igor@olga.mysql.com-20080330055902-07614: There could be observed the following problems: 1. EXPLAIN did not mention pushdown conditions from on expressions in the 'extra' column. As a result if a query had no where conditions pushed down to a table, but had on conditions pushed to this table the 'extra' column in the EXPLAIN for the table missed 'using where'. 2. Conditions for ref access were not eliminated from on expressions though such conditions were eliminated from the where condition.	2009-12-15 10:16:46 +03:00