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fixed bug with type of user variables (bug #551)

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vva@eagle.mysql.r18.ru 2003-06-25 21:11:23 -04:00
parent e96c75fec0
commit 5722ae6627
4 changed files with 16 additions and 0 deletions
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1
BitKeeper/etc/logging_ok
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@ -35,5 +35,6 @@ serg@build.mysql2.com
serg@serg.mysql.com
serg@sergbook.mysql.com
sinisa@rhols221.adsl.netsonic.fi
vva@eagle.mysql.r18.ru
walrus@mysql.com
zak@balfor.local

8
mysql-test/r/user_var.result
View file

@ -14,3 +14,11 @@ table type possible_keys key key_len ref rows Extra
t1 index NULL i 4 NULL 3 where used; Using index
table type possible_keys key key_len ref rows Extra
t1 ref i i 4 const 1 where used
@a:=10 @b:=1 @a > @b @a < @b
10 1 1 0
@a:="10" @b:="1" @a > @b @a < @b
10 1 1 0
@a:=10 @b:=2 @a > @b @a < @b
10 2 1 0
@a:="10" @b:="2" @a > @b @a < @b
10 2 0 1

6
mysql-test/t/user_var.test
View file

@ -17,3 +17,9 @@ explain select * from t1 where @vv1:=@vv1+1 and i=@vv1;
explain select @vv1:=i from t1 where i=@vv1;
explain select * from t1 where i=@vv1;
drop table t1,t2;
# Check types of variables
select @a:=10, @b:=1, @a > @b, @a < @b;
select @a:="10", @b:="1", @a > @b, @a < @b;
select @a:=10, @b:=2, @a > @b, @a < @b;
select @a:="10", @b:="2", @a > @b, @a < @b;

1
sql/item_func.cc
View file

@ -1676,6 +1676,7 @@ bool Item_func_set_user_var::fix_fields(THD *thd,TABLE_LIST *tables)
if (Item_func::fix_fields(thd,tables) ||
!(entry= get_variable(&thd->user_vars, name, 1)))
return 1;
entry->type= cached_result_type;
entry->update_query_id=thd->query_id;
return 0;
}