Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were optimized

away.

Additional fix for bug#22331. Now Item_field prints its value in the case of
the const field.


mysql-test/r/varbinary.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/union.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/subselect.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/func_test.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/having.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/func_regexp.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/func_str.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/func_default.result:
  Corrected test case after fix for bug#22331.
mysql-test/r/explain.result:
  Corrected test case after fix for bug#22331.
sql/sql_union.cc:
  Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were optimized
  away.
  Cleanup of the SELECT_LEX::order_list list.
sql/item.h:
  Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were optimized
  away.
  Added the print() member function to the Item_field class.
sql/item.cc:
  Bug#22331: Wrong WHERE in EXPLAIN EXTENDED when all expressions were optimized
  away.
  Added the print() member function to the Item_field class.
This commit is contained in:
unknown 2007-03-10 00:29:02 +03:00
commit 944030aef7
12 changed files with 49 additions and 25 deletions

View file

@ -8,7 +8,7 @@ explain extended select default(str), default(strnull), default(intg), default(r
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
Warnings:
Note 1003 select default(`test`.`t1`.`str`) AS `default(str)`,default(`test`.`t1`.`strnull`) AS `default(strnull)`,default(`test`.`t1`.`intg`) AS `default(intg)`,default(`test`.`t1`.`rel`) AS `default(rel)` from `test`.`t1`
Note 1003 select default('') AS `default(str)`,default('') AS `default(strnull)`,default('0') AS `default(intg)`,default('0') AS `default(rel)` from `test`.`t1`
select * from t1 where str <> default(str);
str strnull intg rel
0 0