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Merge: Make EXPLAIN better at displaying MRR/BKA

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Sergey Petrunya
2011-04-04 12:38:08 +04:00
parent 69c5b501e5 d4ce827226
commit 2a498b393a
51 changed files with 655 additions and 482 deletions
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mysql-test/r/myisam.result
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@ -368,7 +368,7 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL a NULL NULL NULL 5 Using where
explain select * from t1 force index (a) where a=0 or a=2;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 4 NULL 4 Using index condition; Using MRR
1 SIMPLE t1 range a a 4 NULL 4 Using index condition; Rowid-ordered scan
explain select * from t1 where c=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref c,c_2 c 5 const 1