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WL#3527: Extend IGNORE INDEX so places where index is ignored can

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be specified
 5.0 part of the fix. Implements IGNORE INDEX FOR JOIN as a synonym
 of IGNORE INDEX for backward compatibility with the 5.1 fix.


mysql-test/r/select.result:
  WL#3527: Extend IGNORE INDEX so places where index is ignored can 
           be specified
  - test case
mysql-test/t/select.test:
  WL#3527: Extend IGNORE INDEX so places where index is ignored can 
           be specified
  - test case
This commit is contained in:
unknown
2007-03-09 15:20:06 +02:00
parent 5df7d39e52
commit ff79cd6870
3 changed files with 32 additions and 4 deletions
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mysql-test/r/select.result
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@ -3611,3 +3611,12 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range si,ai si 5 NULL 2 Using where
1 SIMPLE t3 eq_ref PRIMARY,ci PRIMARY 4 test.t2.a 1 Using where
DROP TABLE t1,t2,t3;
CREATE TABLE t1 (a INT, b INT, KEY (a));
INSERT INTO t1 VALUES (1,1),(2,2);
EXPLAIN SELECT 1 FROM t1 WHERE a = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 5 const 1 Using where; Using index
EXPLAIN SELECT 1 FROM t1 IGNORE INDEX FOR JOIN (a) WHERE a = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
DROP TABLE t1;