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Bug#8840 Empty string comparison and character set 'cp1250'

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Secondary weight out of bounds was picked up in mistake when
the string is empty, instead of returning 0.
This commit is contained in:
bar@mysql.com
2005-03-03 14:15:37 +04:00
parent 0683340ec9
commit aaf4b11f11
5 changed files with 28 additions and 1 deletions
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4
mysql-test/include/have_cp1250_ch.inc Normal file
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@@ -0,0 +1,4 @@
-- require r/have_cp1250_ch.require
disable_query_log;
show collation like "cp1250_czech_cs";
enable_query_log;

9
mysql-test/r/ctype_cp1250_ch.result Normal file
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@@ -0,0 +1,9 @@
SHOW COLLATION LIKE 'cp1250_czech_cs';
Collation Charset Id Default Compiled Sortlen
cp1250_czech_cs cp1250 34 Yes 2
CREATE TABLE t1 (a char(16)) character set cp1250 collate cp1250_czech_cs;
INSERT INTO t1 VALUES ('');
SELECT a, length(a), a='', a=' ', a=' ' FROM t1;
a length(a) a='' a=' ' a=' '
0 1 1 1
DROP TABLE t1;

2
mysql-test/r/have_cp1250_ch.require Normal file
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@@ -0,0 +1,2 @@
Collation Charset Id Default Compiled Sortlen
cp1250_czech_cs cp1250 34 Yes 2

12
mysql-test/t/ctype_cp1250_ch.test Normal file
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@@ -0,0 +1,12 @@
-- source include/have_cp1250_ch.inc
SHOW COLLATION LIKE 'cp1250_czech_cs';
#
# Bugs: #8840: Empty string comparison and character set 'cp1250'
#
CREATE TABLE t1 (a char(16)) character set cp1250 collate cp1250_czech_cs;
INSERT INTO t1 VALUES ('');
SELECT a, length(a), a='', a=' ', a=' ' FROM t1;
DROP TABLE t1;

2
strings/ctype-win1250ch.c
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@@ -416,7 +416,7 @@ static struct wordvalue doubles[] = {
#define NEXT_CMP_VALUE(src, p, pass, value, len) \
while (1) { \
if (IS_END(p, src, len)) { \
if (pass == 0) { p = src; pass++; } \
if (pass == 0 && len > 0) { p= src; pass++; } \
else { value = 0; break; } \
} \
value = ((pass == 0) ? _sort_order_win1250ch1[*p] \