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Change the default @@optimizer_switch setting from

Browse source 
semijoin=on,firstmatch=on,loosescan=on
to
  semijoin=off,firstmatch=off,loosescan=off
Adjust the testcases:
- Modify subselect*.test and join_cache.test so that all tests
  use the same execution paths as before (i.e. optimizations that
  are being tested are enabled)
- Let all other test files run with the new default settings (i.e.
  with new optimizations disabled)
- Copy subquery testcases from these files into t/subselect_extra.test
  which will run them with new optimizations enabled.
This commit is contained in:
Sergey Petrunya 2011-07-05 01:44:15 +04:00
commit c1de6f8b77
40 changed files with 266 additions and 168 deletions
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6
sql/mysql_priv.h
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@ -615,10 +615,7 @@ enabled by default, add OPTIMIZER_SWITCH_MATERIALIZATION
OPTIMIZER_SWITCH_INDEX_COND_PUSHDOWN | \
OPTIMIZER_SWITCH_DERIVED_MERGE | \
OPTIMIZER_SWITCH_DERIVED_WITH_KEYS | \
OPTIMIZER_SWITCH_FIRSTMATCH | \
OPTIMIZER_SWITCH_LOOSE_SCAN | \
OPTIMIZER_SWITCH_IN_TO_EXISTS | \
OPTIMIZER_SWITCH_SEMIJOIN | \
OPTIMIZER_SWITCH_PARTIAL_MATCH_ROWID_MERGE|\
OPTIMIZER_SWITCH_PARTIAL_MATCH_TABLE_SCAN|\
OPTIMIZER_SWITCH_SUBQUERY_CACHE|\
@ -638,10 +635,7 @@ enabled by default, add OPTIMIZER_SWITCH_MATERIALIZATION
OPTIMIZER_SWITCH_DERIVED_MERGE | \
OPTIMIZER_SWITCH_DERIVED_WITH_KEYS | \
OPTIMIZER_SWITCH_TABLE_ELIMINATION | \
OPTIMIZER_SWITCH_FIRSTMATCH | \
OPTIMIZER_SWITCH_LOOSE_SCAN | \
OPTIMIZER_SWITCH_IN_TO_EXISTS | \
OPTIMIZER_SWITCH_SEMIJOIN | \
OPTIMIZER_SWITCH_PARTIAL_MATCH_ROWID_MERGE|\
OPTIMIZER_SWITCH_PARTIAL_MATCH_TABLE_SCAN|\
OPTIMIZER_SWITCH_SUBQUERY_CACHE|\