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ps.test, ps.result: a test case for Bug#6042 "constants

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propogation works only once (prepared statements)".


mysql-test/r/ps.result:
  Test case for Bug#6042: test results fixed
mysql-test/t/ps.test:
  A test case for Bug#6042 "constants propogation works only once
  (prepared statements).
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2004-10-12 21:16:07 +04:00
parent 4855ff5152
commit d007600b9b
2 changed files with 39 additions and 0 deletions
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18
mysql-test/r/ps.result
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@ -318,3 +318,21 @@ execute stmt;
a
drop table t1;
deallocate prepare stmt;
create table t1 (a int, b int);
insert into t1 (a, b) values (1,1), (1,2), (2,1), (2,2);
prepare stmt from
"explain select * from t1 where t1.a=2 and t1.a=t1.b and t1.b > 1 + ?";
set @v=5;
execute stmt using @v;
id select_type table type possible_keys key key_len ref rows Extra
- - - - - - - - NULL Impossible WHERE
set @v=0;
execute stmt using @v;
id select_type table type possible_keys key key_len ref rows Extra
- - - - - - - - 4 Using where
set @v=5;
execute stmt using @v;
id select_type table type possible_keys key key_len ref rows Extra
- - - - - - - - NULL Impossible WHERE
drop table t1;
deallocate prepare stmt;