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Bug 2202: CAST from binary to char still returns a binary string

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unknown 2003-12-25 17:42:17 +04:00
parent 229cc61277
commit 8fac0f4d27
4 changed files with 31 additions and 1 deletions
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15
mysql-test/r/cast.result
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@ -101,6 +101,21 @@ t1 CREATE TABLE `t1` (
`c5` char(2) character set utf8 NOT NULL default '' `c5` char(2) character set utf8 NOT NULL default ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1; drop table t1;
create table t1 (a binary(10), b char(10) character set koi8r);
insert into t1 values (_binary'ÔÅÓÔ',_binary'ÔÅÓÔ');
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
a b cast(a as char character set cp1251) cast(b as binary)
ÔÅÓÔ ÔÅÓÔ ÔÅÓÔ ÔÅÓÔ
set names koi8r;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
a b cast(a as char character set cp1251) cast(b as binary)
ÔÅÓÔ ÔÅÓÔ æåõæ ÔÅÓÔ
set names cp1251;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
a b cast(a as char character set cp1251) cast(b as binary)
ÔÅÓÔ òåñò ÔÅÓÔ ÔÅÓÔ
drop table t1;
set names binary;
select cast("2001-1-1" as date) = "2001-01-01"; select cast("2001-1-1" as date) = "2001-01-01";
cast("2001-1-1" as date) = "2001-01-01" cast("2001-1-1" as date) = "2001-01-01"
1 1

13
mysql-test/t/cast.test
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@ -64,6 +64,19 @@ select * from t1;
show create table t1; show create table t1;
drop table t1; drop table t1;
#
# Bug 2202
# CAST from BINARY to non-BINARY and from non-BINARY to BINARY
#
create table t1 (a binary(10), b char(10) character set koi8r);
insert into t1 values (_binary'ÔÅÓÔ',_binary'ÔÅÓÔ');
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
set names koi8r;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
set names cp1251;
select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
drop table t1;
set names binary;
# #
# The following should be fixed in 4.1 # The following should be fixed in 4.1

2
sql/item_timefunc.cc
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@ -1848,6 +1848,8 @@ String *Item_char_typecast::val_str(String *str)
} }
res= str; res= str;
} }
res->set_charset(cast_cs);
/* /*
Cut the tail if cast with length Cut the tail if cast with length

2
sql/sql_string.cc
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@ -235,7 +235,7 @@ bool String::copy(const char *str, uint32 arg_length,
{ {
if ((from_cs == &my_charset_bin) || (to_cs == &my_charset_bin)) if ((from_cs == &my_charset_bin) || (to_cs == &my_charset_bin))
{ {
return copy(str, arg_length, &my_charset_bin); return copy(str, arg_length, to_cs);
} }
uint32 new_length= to_cs->mbmaxlen*arg_length; uint32 new_length= to_cs->mbmaxlen*arg_length;
if (alloc(new_length)) if (alloc(new_length))