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985df4dcdc
bug#44766: valgrind error when using convert() in a subquery
Problem: input and output buffers may be the same
converting a string to some charset.
That may lead to wrong results/valgrind warnings.
Fix: use different buffers.
mysql-test/r/cast.result:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- test result.
mysql-test/r/func_concat.result:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- test result.
mysql-test/t/cast.test:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- test case.
mysql-test/t/func_concat.test:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- test case.
sql/item.cc:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- comment added.
sql/item_strfunc.cc:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- '&args[0]->str_value' used as a parameter of args[0]->val_str(),
as 'str' may be equal to 'str_value' which we use as the output buffer
converting strings.
sql/sql_string.cc:
Fix for bug#44743: Join in combination with concat does not always work
bug#44766: valgrind error when using convert() in a subquery
- input and output buffers must NOT be the same.
286 lines
8.3 KiB
Text
286 lines
8.3 KiB
Text
#
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# Test of cast function
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#
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select CAST(1-2 AS UNSIGNED);
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select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER);
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select CAST('10 ' as unsigned integer);
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select cast(-5 as unsigned) | 1, cast(-5 as unsigned) & -1;
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select cast(-5 as unsigned) -1, cast(-5 as unsigned) + 1;
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select ~5, cast(~5 as signed);
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explain extended select ~5, cast(~5 as signed);
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select cast(5 as unsigned) -6.0;
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select cast(NULL as signed), cast(1/0 as signed);
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#
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# Bug #28250: Run-Time Check Failure #3 - The variable 'value' is being used
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# without being def
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#
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# The following line causes Run-Time Check Failure on
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# binaries built with Visual C++ 2005
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select cast(NULL as unsigned), cast(1/0 as unsigned);
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select cast("A" as binary) = "a", cast(BINARY "a" as CHAR) = "A";
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select cast("2001-1-1" as DATE), cast("2001-1-1" as DATETIME);
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select cast("1:2:3" as TIME);
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select CONVERT("2004-01-22 21:45:33",DATE);
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select 10+'10';
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select 10.0+'10';
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select 10E+0+'10';
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# The following cast creates warnings
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select CONVERT(DATE "2004-01-22 21:45:33" USING latin1);
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select CONVERT(DATE "2004-01-22 21:45:33",CHAR);
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select CONVERT(DATE "2004-01-22 21:45:33",CHAR(4));
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select CONVERT(DATE "2004-01-22 21:45:33",BINARY(4));
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select CAST(DATE "2004-01-22 21:45:33" AS BINARY(4));
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select CAST(0xb3 as signed);
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select CAST(0x8fffffffffffffff as signed);
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select CAST(0xffffffffffffffff as unsigned);
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select CAST(0xfffffffffffffffe as signed);
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select cast('-10a' as signed integer);
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select cast('a10' as unsigned integer);
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select 10+'a';
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select 10.0+cast('a' as decimal);
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select 10E+0+'a';
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# out-of-range cases
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select cast('18446744073709551616' as unsigned);
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select cast('18446744073709551616' as signed);
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select cast('9223372036854775809' as signed);
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select cast('-1' as unsigned);
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select cast('abc' as signed);
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select cast('1a' as signed);
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select cast('' as signed);
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#
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# Character set conversion
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#
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set names binary;
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select cast(_latin1'test' as char character set latin2);
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select cast(_koi8r'ÔÅÓÔ' as char character set cp1251);
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create table t1 select cast(_koi8r'ÔÅÓÔ' as char character set cp1251) as t;
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show create table t1;
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drop table t1;
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#
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# CAST to CHAR with/without length
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#
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select
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cast(_latin1'ab' AS char) as c1,
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cast(_latin1'a ' AS char) as c2,
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cast(_latin1'abc' AS char(2)) as c3,
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cast(_latin1'a ' AS char(2)) as c4,
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hex(cast(_latin1'a' AS char(2))) as c5;
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select cast(1000 as CHAR(3));
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create table t1 select
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cast(_latin1'ab' AS char) as c1,
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cast(_latin1'a ' AS char) as c2,
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cast(_latin1'abc' AS char(2)) as c3,
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cast(_latin1'a ' AS char(2)) as c4,
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cast(_latin1'a' AS char(2)) as c5;
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select c1,c2,c3,c4,hex(c5) from t1;
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show create table t1;
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drop table t1;
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#
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# CAST to NCHAR with/without length
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#
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select
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cast(_koi8r'ÆÇ' AS nchar) as c1,
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cast(_koi8r'Æ ' AS nchar) as c2,
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cast(_koi8r'ÆÇÈ' AS nchar(2)) as c3,
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cast(_koi8r'Æ ' AS nchar(2)) as c4,
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cast(_koi8r'Æ' AS nchar(2)) as c5;
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create table t1 select
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cast(_koi8r'ÆÇ' AS nchar) as c1,
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cast(_koi8r'Æ ' AS nchar) as c2,
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cast(_koi8r'ÆÇÈ' AS nchar(2)) as c3,
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cast(_koi8r'Æ ' AS nchar(2)) as c4,
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cast(_koi8r'Æ' AS nchar(2)) as c5;
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select * from t1;
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show create table t1;
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drop table t1;
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#
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# Bug 2202
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# CAST from BINARY to non-BINARY and from non-BINARY to BINARY
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#
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create table t1 (a binary(4), b char(4) character set koi8r);
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insert into t1 values (_binary'ÔÅÓÔ',_binary'ÔÅÓÔ');
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select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
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set names koi8r;
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select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
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set names cp1251;
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select a,b,cast(a as char character set cp1251),cast(b as binary) from t1;
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drop table t1;
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set names binary;
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#
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# The following should be fixed in 4.1
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#
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select cast("2001-1-1" as date) = "2001-01-01";
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select cast("2001-1-1" as datetime) = "2001-01-01 00:00:00";
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select cast("1:2:3" as TIME) = "1:02:03";
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select cast(NULL as DATE);
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select cast(NULL as BINARY);
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#
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# Bug #5228 ORDER BY CAST(enumcol) sorts incorrectly under certain conditions
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#
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CREATE TABLE t1 (a enum ('aac','aab','aaa') not null);
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INSERT INTO t1 VALUES ('aaa'),('aab'),('aac');
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# these two should be in enum order
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SELECT a, CAST(a AS CHAR) FROM t1 ORDER BY CAST(a AS UNSIGNED) ;
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SELECT a, CAST(a AS CHAR(3)) FROM t1 ORDER BY CAST(a AS CHAR(2)), a;
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# these two should be in alphabetic order
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SELECT a, CAST(a AS UNSIGNED) FROM t1 ORDER BY CAST(a AS CHAR) ;
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SELECT a, CAST(a AS CHAR(2)) FROM t1 ORDER BY CAST(a AS CHAR(3)), a;
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DROP TABLE t1;
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#
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# Test for bug #6914 "Problems using time()/date() output in expressions".
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# When we are casting datetime value to DATE/TIME we should throw away
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# time/date parts (correspondingly).
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#
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select date_add(cast('2004-12-30 12:00:00' as date), interval 0 hour);
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select timediff(cast('2004-12-30 12:00:00' as time), '12:00:00');
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# Still we should not throw away "days" part of time value
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select timediff(cast('1 12:00:00' as time), '12:00:00');
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#
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# Bug #7036: Casting from string to unsigned would cap value of result at
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# maximum signed value instead of maximum unsigned value
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#
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select cast(18446744073709551615 as unsigned);
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select cast(18446744073709551615 as signed);
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select cast('18446744073709551615' as unsigned);
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select cast('18446744073709551615' as signed);
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select cast('9223372036854775807' as signed);
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select cast(concat('184467440','73709551615') as unsigned);
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select cast(concat('184467440','73709551615') as signed);
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select cast(repeat('1',20) as unsigned);
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select cast(repeat('1',20) as signed);
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#
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# Bug #13344: cast of large decimal to signed int not handled correctly
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#
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select cast(1.0e+300 as signed int);
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#
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# Bugs: #15098: CAST(column double TO signed int), wrong result
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#
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CREATE TABLE t1 (f1 double);
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INSERT INTO t1 SET f1 = -1.0e+30 ;
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INSERT INTO t1 SET f1 = +1.0e+30 ;
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# Expected result is +-1e+30, but Windows returns +-1e+030.
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--replace_result 1e+030 1e+30
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SELECT f1 AS double_val, CAST(f1 AS SIGNED INT) AS cast_val FROM t1;
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DROP TABLE t1;
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#
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# Bug #23938: cast(NULL as DATE)
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#
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select isnull(date(NULL)), isnull(cast(NULL as DATE));
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#
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# Bug#23656: Wrong result of CAST from DATE to int
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#
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SELECT CAST(cast('01-01-01' as date) AS UNSIGNED);
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SELECT CAST(cast('01-01-01' as date) AS SIGNED);
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--echo End of 4.1 tests
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#decimal-related additions
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select cast('1.2' as decimal(3,2));
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select 1e18 * cast('1.2' as decimal(3,2));
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select cast(cast('1.2' as decimal(3,2)) as signed);
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set @v1=1e18;
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select cast(@v1 as decimal(22, 2));
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select cast(-1e18 as decimal(22,2));
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create table t1(s1 time);
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insert into t1 values ('11:11:11');
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select cast(s1 as decimal(7,2)) from t1;
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drop table t1;
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#
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# Test for bug #11283: field conversion from varchar, and text types to decimal
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#
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CREATE TABLE t1 (v varchar(10), tt tinytext, t text,
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mt mediumtext, lt longtext);
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INSERT INTO t1 VALUES ('1.01', '2.02', '3.03', '4.04', '5.05');
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SELECT CAST(v AS DECIMAL), CAST(tt AS DECIMAL), CAST(t AS DECIMAL),
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CAST(mt AS DECIMAL), CAST(lt AS DECIMAL) from t1;
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DROP TABLE t1;
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#
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# Bug #10237 (CAST(NULL DECIMAL) crashes server)
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#
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select cast(NULL as decimal(6)) as t1;
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#
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# Bug #17903: cast to char results in binary
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#
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set names latin1;
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select hex(cast('a' as char(2) binary));
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select hex(cast('a' as binary(2)));
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select hex(cast('a' as char(2) binary));
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#
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# Bug#29898: Item_date_typecast::val_int doesn't reset the null_value flag.
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#
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CREATE TABLE t1 (d1 datetime);
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INSERT INTO t1(d1) VALUES ('2007-07-19 08:30:00'), (NULL),
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('2007-07-19 08:34:00'), (NULL), ('2007-07-19 08:36:00');
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SELECT cast(date(d1) as signed) FROM t1;
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drop table t1;
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#
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# Bug #31990: MINUTE() and SECOND() return bogus results when used on a DATE
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#
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# Show that HH:MM:SS of a DATE are 0, and that it's the same for columns
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# and typecasts (NULL in, NULL out).
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CREATE TABLE t1 (f1 DATE);
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INSERT INTO t1 VALUES ('2007-07-19'), (NULL);
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SELECT HOUR(f1),
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MINUTE(f1),
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SECOND(f1) FROM t1;
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SELECT HOUR(CAST('2007-07-19' AS DATE)),
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MINUTE(CAST('2007-07-19' AS DATE)),
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SECOND(CAST('2007-07-19' AS DATE));
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SELECT HOUR(CAST(NULL AS DATE)),
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MINUTE(CAST(NULL AS DATE)),
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SECOND(CAST(NULL AS DATE));
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SELECT HOUR(NULL),
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MINUTE(NULL),
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SECOND(NULL);
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DROP TABLE t1;
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--echo End of 5.0 tests
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--echo #
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--echo # Bug #44766: valgrind error when using convert() in a subquery
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--echo #
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CREATE TABLE t1(a tinyint);
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INSERT INTO t1 VALUES (127);
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SELECT 1 FROM
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(
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SELECT CONVERT(t2.a USING UTF8) FROM t1, t1 t2 LIMIT 1
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) AS s LIMIT 1;
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DROP TABLE t1;
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--echo End of 5.1 tests
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