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Fixed bug #16504.

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Multiple equalities were not adjusted after reading constant tables.
It resulted in neglecting good index based methods that could be
used to access of other tables.
This commit is contained in:
igor@rurik.mysql.com
2006-03-31 21:26:17 -08:00
parent ea2aaa4e2f
commit af2d79a771
9 changed files with 151 additions and 15 deletions
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2
mysql-test/r/varbinary.result
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@@ -15,7 +15,7 @@ explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const UNIQ UNIQ 8 const 1
Warnings:
Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where (`test`.`t1`.`UNIQ` = 4084688022709641610)
Note 1003 select `test`.`t1`.`ID` AS `ID`,`test`.`t1`.`UNIQ` AS `UNIQ` from `test`.`t1` where 1
drop table t1;
select x'hello';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'x'hello'' at line 1