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Bug#58022 ... like ... escape export_set ( ... ) crashes when export_set returns warnings

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ESCAPE argument might be empty string. It leads
to server crash under some circumstances.
The fix:
-added check if ESCAPE argument result is not empty string

mysql-test/r/ctype_latin1.result:
  test case
mysql-test/t/ctype_latin1.test:
  test case
sql/item_cmpfunc.cc:
  -added check if ESCAPE argument result is not empty string
This commit is contained in:
Sergey Glukhov
2010-11-18 11:53:08 +03:00
parent 21bc09c26b
commit 1c94d43bbb
3 changed files with 19 additions and 5 deletions
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8
mysql-test/r/ctype_latin1.result
View File

@ -409,3 +409,11 @@ select hex(cast(_ascii 0x7f as char(1) character set latin1));
hex(cast(_ascii 0x7f as char(1) character set latin1))
7F
End of 5.0 tests
#
# Bug#58022 ... like ... escape export_set ( ... ) crashes when export_set returns warnings
#
SELECT '' LIKE '' ESCAPE EXPORT_SET(1, 1, 1, 1, '');
'' LIKE '' ESCAPE EXPORT_SET(1, 1, 1, 1, '')
1
Warnings:
Warning 1292 Truncated incorrect INTEGER value: ''

5
mysql-test/t/ctype_latin1.test
View File

@ -127,3 +127,8 @@ DROP TABLE `abc
select hex(cast(_ascii 0x7f as char(1) character set latin1));
--echo End of 5.0 tests
--echo #
--echo # Bug#58022 ... like ... escape export_set ( ... ) crashes when export_set returns warnings
--echo #
SELECT '' LIKE '' ESCAPE EXPORT_SET(1, 1, 1, 1, '');