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table.h, sql_select.h:

Added the code processing on expressions for applying
  multiple equalities.
sql_select.cc:
  Post-merge fixes for Item_equal patch.
  Added the code processing on expressions for applying
  multiple equalities.
Many files:
  Post-merge fixes for Item_equal patch.
item_cmpfunc.cc:
  Post-merge fixes for Item_equal patch.
  Fixed a problem when an equality field=const cannot be applied to
  the predicate P(field,c) for constant propagation as a conversion
  of field is needed.
item.h, item.cc:
  Fixed a problem when an equality field=const cannot be applied to
  the predicate P(field,c) for constant propagation as a conversion
  of field is needed.
This commit is contained in:
igor@rurik.mysql.com
2004-10-19 14:12:55 -07:00
parent 71f6ab7a09
commit 4c8e391718
12 changed files with 416 additions and 160 deletions

View File

@@ -79,7 +79,7 @@ explain extended select * from t1 where 1 xor 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (1 xor 1)
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1`
select - a from t1;
- a
-1