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Bug#28875 Conversion between ASCII and LATIN1 charsets does not function

(Regression, caused by a patch for the bug 22646).
Problem: when result type of date_format() was changed from
binary string to character string, mixing date_format()
with a ascii column in CONCAT() stopped to work.
Fix:
- adding "repertoire" flag into DTCollation class,
to mark items which can return only pure ASCII strings.
- allow character set conversion from pure ASCII to other character sets.
This commit is contained in:
bar@mysql.com/bar.myoffice.izhnet.ru
2007-08-03 15:25:23 +05:00
parent a8b2d9c951
commit 4eebfd09c2
20 changed files with 457 additions and 57 deletions

View File

@@ -1246,3 +1246,19 @@ SELECT TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s") FROM (SELECT 3020399 AS a UNION SE
TIME_FORMAT(SEC_TO_TIME(a),"%H:%i:%s")
838:59:58
838:59:59
set names latin1;
create table t1 (a varchar(15) character set ascii not null);
insert into t1 values ('070514-000000');
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull'))
#
set names swe7;
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
ERROR HY000: Illegal mix of collations (ascii_general_ci,IMPLICIT) and (swe7_swedish_ci,COERCIBLE) for operation 'concat'
set names latin1;
set lc_time_names=fr_FR;
select concat(a,ifnull(min(date_format(now(), '%Y-%m-%d')),' ull')) from t1;
ERROR HY000: Illegal mix of collations (ascii_general_ci,IMPLICIT) and (latin1_swedish_ci,COERCIBLE) for operation 'concat'
set lc_time_names=en_US;
drop table t1;
End of 5.0 tests