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Bug#48766 SHOW CREATE FUNCTION returns extra data in return clause

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Problem: SHOW CREATE FUNCTION and SELECT DTD_IDENTIFIER FROM I_S.ROUTINES
returned wrong values in case of ENUM return data type and UCS2
character set.

Fix: the string to collect returned data type was incorrectly set to
"binary" character set, therefore UCS2 values where returned with
extra '\0' characters.
Setting string character set to creation_ctx->get_client_cs()
in sp_find_routine(), and to system_charset_info in sp_create_routine
fixes the problem.

Adding tests:
- the original test with Latin letters
- an extra test with non-Latin letters
This commit is contained in:
Alexander Barkov
2009-12-02 15:17:08 +04:00
parent b19ae492c0
commit d7abca9ac3
3 changed files with 57 additions and 0 deletions
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29
mysql-test/t/sp-ucs2.test
View File

@ -26,3 +26,32 @@ drop table t3|
delimiter ;|
#
# Bug#48766 SHOW CREATE FUNCTION returns extra data in return clause
#
SET NAMES utf8;
--disable_warnings
DROP FUNCTION IF EXISTS bug48766;
--enable_warnings
#
# Test that Latin letters are not prepended with extra '\0'.
#
CREATE FUNCTION bug48766 ()
RETURNS ENUM( 'w' ) CHARACTER SET ucs2
RETURN 0;
SHOW CREATE FUNCTION bug48766;
SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_NAME='bug48766';
DROP FUNCTION bug48766;
#
# Test non-Latin characters
#
CREATE FUNCTION bug48766 ()
RETURNS ENUM('а','б','в','г') CHARACTER SET ucs2
RETURN 0;
SHOW CREATE FUNCTION bug48766;
SELECT DTD_IDENTIFIER FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_NAME='bug48766';
DROP FUNCTION bug48766;