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fix_fields recoursion didn't stop when some level's fix_length_and_dec

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produced an error. This led to server crash in some cases, e.g.:
create table t7 (s1 char);
select * from t7
where concat(s1 collate latin1_general_ci,s1 collate latin1_swedish_ci)
= 'AA';
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unknown
2003-08-05 10:08:16 +05:00
parent d54e55474d
commit 691b7584fb
3 changed files with 17 additions and 0 deletions
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5
mysql-test/r/func_str.result
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@ -553,3 +553,8 @@ SUBSTR('abcdefg',-1,-1)
select SUBSTR('abcdefg',1,-1) FROM DUAL;
SUBSTR('abcdefg',1,-1)
create table t7 (s1 char);
select * from t7
where concat(s1 collate latin1_general_ci,s1 collate latin1_swedish_ci) = 'AA';
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_swedish_ci,EXPLICIT) for operation 'concat'
drop table t7;