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merge from 5.1 again

pull/47/merge
Bjorn Munch 16 years ago
parent
af9d564303 4422b0f665
commit
551f57645f
9 changed files with 501 additions and 106 deletions
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  1. 25
      mysql-test/r/select.result
  2. 6
      mysql-test/r/show_check.result
  3. 264
      mysql-test/r/type_year.result
  4. 23
      mysql-test/t/select.test
  5. 22
      mysql-test/t/show_check.test
  6. 106
      mysql-test/t/type_year.test
  7. 148
      sql/item_cmpfunc.cc
  8. 11
      sql/item_cmpfunc.h
  9. 2
      sql/sql_show.cc

25
mysql-test/r/select.result
View File

@ -4609,4 +4609,29 @@ HAVING v <= 't'
ORDER BY pk;
v
DROP TABLE t1;
#
# Bug#49489 Uninitialized cache led to a wrong result.
#
CREATE TABLE t1(c1 DOUBLE(5,4));
INSERT INTO t1 VALUES (9.1234);
SELECT * FROM t1 WHERE c1 < 9.12345;
c1
9.1234
DROP TABLE t1;
# End of test for bug#49489.
#
# Bug #49517: Inconsistent behavior while using
# NULLable BIGINT and INT columns in comparison
#
CREATE TABLE t1(a BIGINT UNSIGNED NOT NULL, b BIGINT NULL, c INT NULL);
INSERT INTO t1 VALUES(105, NULL, NULL);
SELECT * FROM t1 WHERE b < 102;
a b c
SELECT * FROM t1 WHERE c < 102;
a b c
SELECT * FROM t1 WHERE 102 < b;
a b c
SELECT * FROM t1 WHERE 102 < c;
a b c
DROP TABLE t1;
End of 5.1 tests

6
mysql-test/r/show_check.result
View File

@ -1454,4 +1454,10 @@ GRANT PROCESS ON *.* TO test_u@localhost;
SHOW ENGINE MYISAM MUTEX;
SHOW ENGINE MYISAM STATUS;
DROP USER test_u@localhost;
#
# Bug #48985: show create table crashes if previous access to the table
# was killed
#
SHOW CREATE TABLE non_existent;
ERROR 70100: Query execution was interrupted
End of 5.1 tests

264
mysql-test/r/type_year.result
View File

@ -46,3 +46,267 @@ a
2001
drop table t1;
End of 5.0 tests
#
# Bug #49480: WHERE using YEAR columns returns unexpected results
#
CREATE TABLE t2(yy YEAR(2), c2 CHAR(4));
CREATE TABLE t4(yyyy YEAR(4), c4 CHAR(4));
INSERT INTO t2 (c2) VALUES (NULL),(1970),(1999),(2000),(2001),(2069);
INSERT INTO t4 (c4) SELECT c2 FROM t2;
UPDATE t2 SET yy = c2;
UPDATE t4 SET yyyy = c4;
SELECT * FROM t2;
yy c2
NULL NULL
70 1970
99 1999
00 2000
01 2001
69 2069
SELECT * FROM t4;
yyyy c4
NULL NULL
1970 1970
1999 1999
2000 2000
2001 2001
2069 2069
# Comparison of YEAR(2) with YEAR(4)
SELECT * FROM t2, t4 WHERE yy = yyyy;
yy c2 yyyy c4
70 1970 1970 1970
99 1999 1999 1999
00 2000 2000 2000
01 2001 2001 2001
69 2069 2069 2069
SELECT * FROM t2, t4 WHERE yy <=> yyyy;
yy c2 yyyy c4
NULL NULL NULL NULL
70 1970 1970 1970
99 1999 1999 1999
00 2000 2000 2000
01 2001 2001 2001
69 2069 2069 2069
SELECT * FROM t2, t4 WHERE yy < yyyy;
yy c2 yyyy c4
70 1970 1999 1999
70 1970 2000 2000
99 1999 2000 2000
70 1970 2001 2001
99 1999 2001 2001
00 2000 2001 2001
70 1970 2069 2069
99 1999 2069 2069
00 2000 2069 2069
01 2001 2069 2069
SELECT * FROM t2, t4 WHERE yy > yyyy;
yy c2 yyyy c4
99 1999 1970 1970
00 2000 1970 1970
01 2001 1970 1970
69 2069 1970 1970
00 2000 1999 1999
01 2001 1999 1999
69 2069 1999 1999
01 2001 2000 2000
69 2069 2000 2000
69 2069 2001 2001
# Comparison of YEAR(2) with YEAR(2)
SELECT * FROM t2 a, t2 b WHERE a.yy = b.yy;
yy c2 yy c2
70 1970 70 1970
99 1999 99 1999
00 2000 00 2000
01 2001 01 2001
69 2069 69 2069
SELECT * FROM t2 a, t2 b WHERE a.yy <=> b.yy;
yy c2 yy c2
NULL NULL NULL NULL
70 1970 70 1970
99 1999 99 1999
00 2000 00 2000
01 2001 01 2001
69 2069 69 2069
SELECT * FROM t2 a, t2 b WHERE a.yy < b.yy;
yy c2 yy c2
70 1970 99 1999
70 1970 00 2000
99 1999 00 2000
70 1970 01 2001
99 1999 01 2001
00 2000 01 2001
70 1970 69 2069
99 1999 69 2069
00 2000 69 2069
01 2001 69 2069
# Comparison of YEAR(4) with YEAR(4)
SELECT * FROM t4 a, t4 b WHERE a.yyyy = b.yyyy;
yyyy c4 yyyy c4
1970 1970 1970 1970
1999 1999 1999 1999
2000 2000 2000 2000
2001 2001 2001 2001
2069 2069 2069 2069
SELECT * FROM t4 a, t4 b WHERE a.yyyy <=> b.yyyy;
yyyy c4 yyyy c4
NULL NULL NULL NULL
1970 1970 1970 1970
1999 1999 1999 1999
2000 2000 2000 2000
2001 2001 2001 2001
2069 2069 2069 2069
SELECT * FROM t4 a, t4 b WHERE a.yyyy < b.yyyy;
yyyy c4 yyyy c4
1970 1970 1999 1999
1970 1970 2000 2000
1999 1999 2000 2000
1970 1970 2001 2001
1999 1999 2001 2001
2000 2000 2001 2001
1970 1970 2069 2069
1999 1999 2069 2069
2000 2000 2069 2069
2001 2001 2069 2069
# Comparison with constants:
SELECT * FROM t2 WHERE yy = NULL;
yy c2
SELECT * FROM t4 WHERE yyyy = NULL;
yyyy c4
SELECT * FROM t2 WHERE yy <=> NULL;
yy c2
NULL NULL
SELECT * FROM t4 WHERE yyyy <=> NULL;
yyyy c4
NULL NULL
SELECT * FROM t2 WHERE yy < NULL;
yy c2
SELECT * FROM t2 WHERE yy > NULL;
yy c2
SELECT * FROM t2 WHERE yy = NOW();
yy c2
SELECT * FROM t4 WHERE yyyy = NOW();
yyyy c4
SELECT * FROM t2 WHERE yy = 99;
yy c2
99 1999
SELECT * FROM t2 WHERE 99 = yy;
yy c2
99 1999
SELECT * FROM t4 WHERE yyyy = 99;
yyyy c4
1999 1999
SELECT * FROM t2 WHERE yy = 'test';
yy c2
00 2000
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'test'
SELECT * FROM t4 WHERE yyyy = 'test';
yyyy c4
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'test'
SELECT * FROM t2 WHERE yy = '1999';
yy c2
99 1999
SELECT * FROM t4 WHERE yyyy = '1999';
yyyy c4
1999 1999
SELECT * FROM t2 WHERE yy = 1999;
yy c2
99 1999
SELECT * FROM t4 WHERE yyyy = 1999;
yyyy c4
1999 1999
SELECT * FROM t2 WHERE yy = 1999.1;
yy c2
99 1999
SELECT * FROM t4 WHERE yyyy = 1999.1;
yyyy c4
1999 1999
SELECT * FROM t2 WHERE yy = 1998.9;
yy c2
99 1999
SELECT * FROM t4 WHERE yyyy = 1998.9;
yyyy c4
1999 1999
# Coverage tests for YEAR with zero/2000 constants:
SELECT * FROM t2 WHERE yy = 0;
yy c2
00 2000
SELECT * FROM t2 WHERE yy = '0';
yy c2
00 2000
SELECT * FROM t2 WHERE yy = '0000';
yy c2
00 2000
SELECT * FROM t2 WHERE yy = '2000';
yy c2
00 2000
SELECT * FROM t2 WHERE yy = 2000;
yy c2
00 2000
SELECT * FROM t4 WHERE yyyy = 0;
yyyy c4
SELECT * FROM t4 WHERE yyyy = '0';
yyyy c4
2000 2000
SELECT * FROM t4 WHERE yyyy = '0000';
yyyy c4
SELECT * FROM t4 WHERE yyyy = '2000';
yyyy c4
2000 2000
SELECT * FROM t4 WHERE yyyy = 2000;
yyyy c4
2000 2000
# Comparison with constants those are out of YEAR range
# (coverage test for backward compatibility)
SELECT COUNT(yy) FROM t2;
COUNT(yy)
5
SELECT COUNT(yyyy) FROM t4;
COUNT(yyyy)
5
SELECT COUNT(*) FROM t2 WHERE yy = -1;
COUNT(*)
0
SELECT COUNT(*) FROM t4 WHERE yyyy > -1;
COUNT(*)
5
SELECT COUNT(*) FROM t2 WHERE yy > -1000000000000000000;
COUNT(*)
5
SELECT COUNT(*) FROM t4 WHERE yyyy > -1000000000000000000;
COUNT(*)
5
SELECT COUNT(*) FROM t2 WHERE yy < 2156;
COUNT(*)
5
SELECT COUNT(*) FROM t4 WHERE yyyy < 2156;
COUNT(*)
5
SELECT COUNT(*) FROM t2 WHERE yy < 1000000000000000000;
COUNT(*)
5
SELECT COUNT(*) FROM t4 WHERE yyyy < 1000000000000000000;
COUNT(*)
5
SELECT * FROM t2 WHERE yy < 123;
yy c2
70 1970
99 1999
00 2000
01 2001
69 2069
SELECT * FROM t2 WHERE yy > 123;
yy c2
SELECT * FROM t4 WHERE yyyy < 123;
yyyy c4
SELECT * FROM t4 WHERE yyyy > 123;
yyyy c4
1970 1970
1999 1999
2000 2000
2001 2001
2069 2069
DROP TABLE t2, t4;
#
End of 5.1 tests

23
mysql-test/t/select.test
View File

@ -3964,4 +3964,27 @@ ORDER BY pk;
DROP TABLE t1;
--echo #
--echo # Bug#49489 Uninitialized cache led to a wrong result.
--echo #
CREATE TABLE t1(c1 DOUBLE(5,4));
INSERT INTO t1 VALUES (9.1234);
SELECT * FROM t1 WHERE c1 < 9.12345;
DROP TABLE t1;
--echo # End of test for bug#49489.
--echo #
--echo # Bug #49517: Inconsistent behavior while using
--echo # NULLable BIGINT and INT columns in comparison
--echo #
CREATE TABLE t1(a BIGINT UNSIGNED NOT NULL, b BIGINT NULL, c INT NULL);
INSERT INTO t1 VALUES(105, NULL, NULL);
SELECT * FROM t1 WHERE b < 102;
SELECT * FROM t1 WHERE c < 102;
SELECT * FROM t1 WHERE 102 < b;
SELECT * FROM t1 WHERE 102 < c;
DROP TABLE t1;
--echo End of 5.1 tests

22
mysql-test/t/show_check.test
View File

@ -1207,6 +1207,28 @@ connection default;
DROP USER test_u@localhost;
--echo #
--echo # Bug #48985: show create table crashes if previous access to the table
--echo # was killed
--echo #
connect(con1,localhost,root,,);
CONNECTION con1;
LET $ID= `SELECT connection_id()`;
CONNECTION default;
--disable_query_log
eval KILL QUERY $ID;
--enable_query_log
CONNECTION con1;
--error ER_QUERY_INTERRUPTED
SHOW CREATE TABLE non_existent;
CONNECTION default;
DISCONNECT con1;
--echo End of 5.1 tests
# Wait till all disconnects are completed

106
mysql-test/t/type_year.test
View File

@ -30,3 +30,109 @@ select * from t1;
drop table t1;
--echo End of 5.0 tests
--echo #
--echo # Bug #49480: WHERE using YEAR columns returns unexpected results
--echo #
CREATE TABLE t2(yy YEAR(2), c2 CHAR(4));
CREATE TABLE t4(yyyy YEAR(4), c4 CHAR(4));
INSERT INTO t2 (c2) VALUES (NULL),(1970),(1999),(2000),(2001),(2069);
INSERT INTO t4 (c4) SELECT c2 FROM t2;
UPDATE t2 SET yy = c2;
UPDATE t4 SET yyyy = c4;
SELECT * FROM t2;
SELECT * FROM t4;
--echo # Comparison of YEAR(2) with YEAR(4)
SELECT * FROM t2, t4 WHERE yy = yyyy;
SELECT * FROM t2, t4 WHERE yy <=> yyyy;
SELECT * FROM t2, t4 WHERE yy < yyyy;
SELECT * FROM t2, t4 WHERE yy > yyyy;
--echo # Comparison of YEAR(2) with YEAR(2)
SELECT * FROM t2 a, t2 b WHERE a.yy = b.yy;
SELECT * FROM t2 a, t2 b WHERE a.yy <=> b.yy;
SELECT * FROM t2 a, t2 b WHERE a.yy < b.yy;
--echo # Comparison of YEAR(4) with YEAR(4)
SELECT * FROM t4 a, t4 b WHERE a.yyyy = b.yyyy;
SELECT * FROM t4 a, t4 b WHERE a.yyyy <=> b.yyyy;
SELECT * FROM t4 a, t4 b WHERE a.yyyy < b.yyyy;
--echo # Comparison with constants:
SELECT * FROM t2 WHERE yy = NULL;
SELECT * FROM t4 WHERE yyyy = NULL;
SELECT * FROM t2 WHERE yy <=> NULL;
SELECT * FROM t4 WHERE yyyy <=> NULL;
SELECT * FROM t2 WHERE yy < NULL;
SELECT * FROM t2 WHERE yy > NULL;
SELECT * FROM t2 WHERE yy = NOW();
SELECT * FROM t4 WHERE yyyy = NOW();
SELECT * FROM t2 WHERE yy = 99;
SELECT * FROM t2 WHERE 99 = yy;
SELECT * FROM t4 WHERE yyyy = 99;
SELECT * FROM t2 WHERE yy = 'test';
SELECT * FROM t4 WHERE yyyy = 'test';
SELECT * FROM t2 WHERE yy = '1999';
SELECT * FROM t4 WHERE yyyy = '1999';
SELECT * FROM t2 WHERE yy = 1999;
SELECT * FROM t4 WHERE yyyy = 1999;
SELECT * FROM t2 WHERE yy = 1999.1;
SELECT * FROM t4 WHERE yyyy = 1999.1;
SELECT * FROM t2 WHERE yy = 1998.9;
SELECT * FROM t4 WHERE yyyy = 1998.9;
--echo # Coverage tests for YEAR with zero/2000 constants:
SELECT * FROM t2 WHERE yy = 0;
SELECT * FROM t2 WHERE yy = '0';
SELECT * FROM t2 WHERE yy = '0000';
SELECT * FROM t2 WHERE yy = '2000';
SELECT * FROM t2 WHERE yy = 2000;
SELECT * FROM t4 WHERE yyyy = 0;
SELECT * FROM t4 WHERE yyyy = '0';
SELECT * FROM t4 WHERE yyyy = '0000';
SELECT * FROM t4 WHERE yyyy = '2000';
SELECT * FROM t4 WHERE yyyy = 2000;
--echo # Comparison with constants those are out of YEAR range
--echo # (coverage test for backward compatibility)
SELECT COUNT(yy) FROM t2;
SELECT COUNT(yyyy) FROM t4;
SELECT COUNT(*) FROM t2 WHERE yy = -1;
SELECT COUNT(*) FROM t4 WHERE yyyy > -1;
SELECT COUNT(*) FROM t2 WHERE yy > -1000000000000000000;
SELECT COUNT(*) FROM t4 WHERE yyyy > -1000000000000000000;
SELECT COUNT(*) FROM t2 WHERE yy < 2156;
SELECT COUNT(*) FROM t4 WHERE yyyy < 2156;
SELECT COUNT(*) FROM t2 WHERE yy < 1000000000000000000;
SELECT COUNT(*) FROM t4 WHERE yyyy < 1000000000000000000;
SELECT * FROM t2 WHERE yy < 123;
SELECT * FROM t2 WHERE yy > 123;
SELECT * FROM t4 WHERE yyyy < 123;
SELECT * FROM t4 WHERE yyyy > 123;
DROP TABLE t2, t4;
--echo #
--echo End of 5.1 tests

148
sql/item_cmpfunc.cc
View File

@ -895,9 +895,9 @@ int Arg_comparator::set_cmp_func(Item_result_field *owner_arg,
ulonglong const_value= (ulonglong)-1;
thd= current_thd;
owner= owner_arg;
set_null= set_null && owner_arg;
a= a1;
b= a2;
owner= owner_arg;
thd= current_thd;
if ((cmp_type= can_compare_as_dates(*a, *b, &const_value)))
@ -956,40 +956,9 @@ int Arg_comparator::set_cmp_func(Item_result_field *owner_arg,
if (agg_item_set_converter(coll, owner->func_name(),
b, 1, MY_COLL_CMP_CONV, 1))
return 1;
} else if (type != ROW_RESULT && ((*a)->field_type() == MYSQL_TYPE_YEAR ||
(*b)->field_type() == MYSQL_TYPE_YEAR))
{
is_nulls_eq= is_owner_equal_func();
year_as_datetime= FALSE;
if ((*a)->is_datetime())
{
year_as_datetime= TRUE;
get_value_a_func= &get_datetime_value;
} else if ((*a)->field_type() == MYSQL_TYPE_YEAR)
get_value_a_func= &get_year_value;
else
{
/*
Because convert_constant_item is called only for EXECUTE in PS mode
the value of get_value_x_func set in PREPARE might be not
valid for EXECUTE.
*/
get_value_a_func= NULL;
}
if ((*b)->is_datetime())
{
year_as_datetime= TRUE;
get_value_b_func= &get_datetime_value;
} else if ((*b)->field_type() == MYSQL_TYPE_YEAR)
get_value_b_func= &get_year_value;
else
get_value_b_func= NULL;
func= &Arg_comparator::compare_year;
return 0;
}
else if (try_year_cmp_func(type))
return 0;
a= cache_converted_constant(thd, a, &a_cache, type);
b= cache_converted_constant(thd, b, &b_cache, type);
@ -997,6 +966,45 @@ int Arg_comparator::set_cmp_func(Item_result_field *owner_arg,
}
/*
Helper function to call from Arg_comparator::set_cmp_func()
*/
bool Arg_comparator::try_year_cmp_func(Item_result type)
{
if (type == ROW_RESULT)
return FALSE;
bool a_is_year= (*a)->field_type() == MYSQL_TYPE_YEAR;
bool b_is_year= (*b)->field_type() == MYSQL_TYPE_YEAR;
if (!a_is_year && !b_is_year)
return FALSE;
if (a_is_year && b_is_year)
{
get_value_a_func= &get_year_value;
get_value_b_func= &get_year_value;
}
else if (a_is_year && (*b)->is_datetime())
{
get_value_a_func= &get_year_value;
get_value_b_func= &get_datetime_value;
}
else if (b_is_year && (*a)->is_datetime())
{
get_value_b_func= &get_year_value;
get_value_a_func= &get_datetime_value;
}
else
return FALSE;
is_nulls_eq= is_owner_equal_func();
func= &Arg_comparator::compare_datetime;
return TRUE;
}
/**
Convert and cache a constant.
@ -1023,7 +1031,7 @@ Item** Arg_comparator::cache_converted_constant(THD *thd, Item **value,
(*value)->const_item() && type != (*value)->result_type())
{
Item_cache *cache= Item_cache::get_cache(*value, type);
cache->store(*value);
cache->setup(*value);
*cache_item= cache;
return cache_item;
}
@ -1147,7 +1155,7 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
/*
Retrieves YEAR value of 19XX form from given item.
Retrieves YEAR value of 19XX-00-00 00:00:00 form from given item.
SYNOPSIS
get_year_value()
@ -1159,7 +1167,9 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
DESCRIPTION
Retrieves the YEAR value of 19XX form from given item for comparison by the
compare_year() function.
compare_datetime() function.
Converts year to DATETIME of form YYYY-00-00 00:00:00 for the compatibility
with the get_datetime_value function result.
RETURN
obtained value
@ -1186,6 +1196,9 @@ get_year_value(THD *thd, Item ***item_arg, Item **cache_arg,
if (value <= 1900)
value+= 1900;
/* Convert year to DATETIME of form YYYY-00-00 00:00:00 (YYYY0000000000). */
value*= 10000000000LL;
return value;
}
@ -1615,67 +1628,6 @@ int Arg_comparator::compare_e_row()
}
/**
Compare values as YEAR.
@details
Compare items as YEAR for EQUAL_FUNC and for other comparison functions.
The YEAR values of form 19XX are obtained with help of the get_year_value()
function.
If one of arguments is of DATE/DATETIME type its value is obtained
with help of the get_datetime_value function. In this case YEAR values
prior to comparison are converted to the ulonglong YYYY-00-00 00:00:00
DATETIME form.
If an argument type neither YEAR nor DATE/DATEIME then val_int function
is used to obtain value for comparison.
RETURN
If is_nulls_eq is TRUE:
1 if items are equal or both are null
0 otherwise
If is_nulls_eq is FALSE:
-1 a < b
0 a == b or at least one of items is null
1 a > b
See the table:
is_nulls_eq | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
a_is_null | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 |
b_is_null | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
result | 1 | 0 | 0 |0/1| 0 | 0 | 0 |-1/0/1|
*/
int Arg_comparator::compare_year()
{
bool a_is_null, b_is_null;
ulonglong val1= get_value_a_func ?
(*get_value_a_func)(thd, &a, &a_cache, *b, &a_is_null) :
(*a)->val_int();
ulonglong val2= get_value_b_func ?
(*get_value_b_func)(thd, &b, &b_cache, *a, &b_is_null) :
(*b)->val_int();
if (!(*a)->null_value)
{
if (!(*b)->null_value)
{
if (set_null)
owner->null_value= 0;
/* Convert year to DATETIME of form YYYY-00-00 00:00:00 when necessary. */
if((*a)->field_type() == MYSQL_TYPE_YEAR && year_as_datetime)
val1*= 10000000000LL;
if((*b)->field_type() == MYSQL_TYPE_YEAR && year_as_datetime)
val2*= 10000000000LL;
if (val1 < val2) return is_nulls_eq ? 0 : -1;
if (val1 == val2) return is_nulls_eq ? 1 : 0;
return is_nulls_eq ? 0 : 1;
}
}
if (set_null)
owner->null_value= is_nulls_eq ? 0 : 1;
return (is_nulls_eq && (*a)->null_value == (*b)->null_value) ? 1 : 0;
}
void Item_func_truth::fix_length_and_dec()
{
maybe_null= 0;

11
sql/item_cmpfunc.h
View File

@ -42,24 +42,22 @@ class Arg_comparator: public Sql_alloc
bool is_nulls_eq; // TRUE <=> compare for the EQUAL_FUNC
bool set_null; // TRUE <=> set owner->null_value
// when one of arguments is NULL.
bool year_as_datetime; // TRUE <=> convert YEAR value to
// the YYYY-00-00 00:00:00 DATETIME
// format. See compare_year.
enum enum_date_cmp_type { CMP_DATE_DFLT= 0, CMP_DATE_WITH_DATE,
CMP_DATE_WITH_STR, CMP_STR_WITH_DATE };
longlong (*get_value_a_func)(THD *thd, Item ***item_arg, Item **cache_arg,
Item *warn_item, bool *is_null);
longlong (*get_value_b_func)(THD *thd, Item ***item_arg, Item **cache_arg,
Item *warn_item, bool *is_null);
bool try_year_cmp_func(Item_result type);
public:
DTCollation cmp_collation;
/* Allow owner function to use string buffers. */
String value1, value2;
Arg_comparator(): thd(0), a_cache(0), b_cache(0), set_null(0),
year_as_datetime(0), get_value_a_func(0), get_value_b_func(0) {};
Arg_comparator(): thd(0), a_cache(0), b_cache(0), set_null(TRUE),
get_value_a_func(0), get_value_b_func(0) {};
Arg_comparator(Item **a1, Item **a2): a(a1), b(a2), thd(0),
a_cache(0), b_cache(0), set_null(0), year_as_datetime(0),
a_cache(0), b_cache(0), set_null(TRUE),
get_value_a_func(0), get_value_b_func(0) {};
int set_compare_func(Item_result_field *owner, Item_result type);
@ -101,7 +99,6 @@ public:
int compare_real_fixed();
int compare_e_real_fixed();
int compare_datetime(); // compare args[0] & args[1] as DATETIMEs
int compare_year();
static enum enum_date_cmp_type can_compare_as_dates(Item *a, Item *b,
ulonglong *const_val_arg);

2
sql/sql_show.cc
View File

@ -719,7 +719,7 @@ mysqld_show_create(THD *thd, TABLE_LIST *table_list)
thd->push_internal_handler(&view_error_suppressor);
bool error= open_normal_and_derived_tables(thd, table_list, 0);
thd->pop_internal_handler();
if (error && thd->main_da.is_error())
if (error && (thd->killed || thd->main_da.is_error()))
DBUG_RETURN(TRUE);
}

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