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Bug #20007383: HANDLE_FATAL_SIGNAL (SIG=11) IN UPDATE_REF_AND_KEYS.

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Issue:
======
The fulltext predicate is inside a subquery and involves
an outer reference; it thus cannot be used for FT index look-up,
but MySQL does not see it, which causes a illegal access.

Solution:
=========
Solution is backported from bug#21140088. Outer reference can
not be used as argument of the MATCH function. Added check for
outer reference.
This commit is contained in:
Mithun C Y 2015-10-12 12:56:36 +05:30
parent ecfc7c2616
commit f92dd6ae6f
2 changed files with 7 additions and 7 deletions
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2
mysql-test/r/fulltext.result
View File

@ -541,7 +541,7 @@ MATCH(a) AGAINST('aaa1* aaa14 aaa15 aaa16' IN BOOLEAN MODE)
DROP TABLE t1;
CREATE TABLE t1(a TEXT);
SELECT GROUP_CONCAT(a) AS st FROM t1 HAVING MATCH(st) AGAINST('test' IN BOOLEAN MODE);
ERROR HY000: Incorrect arguments to AGAINST
ERROR HY000: Incorrect arguments to MATCH
DROP TABLE t1;
CREATE TABLE t1(a VARCHAR(64), FULLTEXT(a));
INSERT INTO t1 VALUES('awrd bwrd cwrd'),('awrd bwrd cwrd'),('awrd bwrd cwrd');

12
sql/item_func.cc
View File

@ -1,4 +1,4 @@
/* Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
/* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -5900,12 +5900,12 @@ bool Item_func_match::fix_fields(THD *thd, Item **ref)
const_item_cache=0;
for (uint i=1 ; i < arg_count ; i++)
{
item=args[i];
if (item->type() == Item::REF_ITEM)
args[i]= item= *((Item_ref *)item)->ref;
if (item->type() != Item::FIELD_ITEM)
item= args[i]= args[i]->real_item();
if (item->type() != Item::FIELD_ITEM ||
/* Cannot use FTS index with outer table field */
(item->used_tables() & OUTER_REF_TABLE_BIT))
{
my_error(ER_WRONG_ARGUMENTS, MYF(0), "AGAINST");
my_error(ER_WRONG_ARGUMENTS, MYF(0), "MATCH");
return TRUE;
}
}