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Fix for a bug #1226.

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Happens when braces are used on a single select, which leads
to the uninitialized global parameters structure.
This commit is contained in:
unknown
2003-09-09 15:23:38 +03:00
parent d2008574d6
commit b2a6994b22
3 changed files with 11 additions and 2 deletions
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6
mysql-test/r/subselect.result
View File

@@ -1368,4 +1368,10 @@ insert into t1 values ('tttt');
select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1); select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1);
s1 s1
tttt tttt
explain (select * from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
(select * from t1);
s1
tttt
drop table t1; drop table t1;

2
mysql-test/t/subselect.test
View File

@@ -931,4 +931,6 @@ create table t1 (s1 char(5));
select (select 'a','b' from t1 union select 'a','b' from t1) from t1; select (select 'a','b' from t1 union select 'a','b' from t1) from t1;
insert into t1 values ('tttt'); insert into t1 values ('tttt');
select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1); select * from t1 where ('a','b')=(select 'a','b' from t1 union select 'a','b' from t1);
explain (select * from t1);
(select * from t1);
drop table t1; drop table t1;

1
sql/sql_yacc.yy
View File

@@ -2012,6 +2012,7 @@ select_init:
YYABORT; YYABORT;
} }
/* select in braces, can't contain global parameters */ /* select in braces, can't contain global parameters */
if (sel->master_unit()->fake_select_lex)
sel->master_unit()->global_parameters= sel->master_unit()->global_parameters=
sel->master_unit()->fake_select_lex; sel->master_unit()->fake_select_lex;
} union_opt; } union_opt;