diff options
| -rw-r--r-- | mysql-test/r/func_group.result | 11 | ||||
| -rw-r--r-- | mysql-test/t/func_group.test | 12 | ||||
| -rw-r--r-- | sql/field.cc | 2 | ||||
| -rw-r--r-- | sql/item_sum.cc | 6 |
4 files changed, 26 insertions, 5 deletions
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result index 69bce1c8bd8..b90eb2a4c0f 100644 --- a/mysql-test/r/func_group.result +++ b/mysql-test/r/func_group.result @@ -1746,4 +1746,15 @@ MAX(LENGTH(a)) LENGTH(MAX(a)) MIN(a) MAX(a) CONCAT(MIN(a)) CONCAT(MAX(a)) 20 20 18446668621106209655 18446668621106209655 18446668621106209655 18446668621106209655 DROP TABLE t1; # +# Bug #11766270 59343: YEAR(4): INCORRECT RESULT AND VALGRIND WARNINGS WITH MIN/MAX, UNION +# +CREATE TABLE t1(f1 YEAR(4)); +INSERT INTO t1 VALUES (0000),(2001); +(SELECT MAX(f1) FROM t1) UNION (SELECT MAX(f1) FROM t1); +Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr +def MAX(f1) MAX(f1) 13 4 4 Y 32864 0 63 +MAX(f1) +2001 +DROP TABLE t1; +# End of 5.1 tests diff --git a/mysql-test/t/func_group.test b/mysql-test/t/func_group.test index 600b46fcde6..177a1ca2471 100644 --- a/mysql-test/t/func_group.test +++ b/mysql-test/t/func_group.test @@ -1128,5 +1128,17 @@ SELECT MAX(LENGTH(a)), LENGTH(MAX(a)), MIN(a), MAX(a), CONCAT(MIN(a)), CONCAT(MA DROP TABLE t1; --echo # +--echo # Bug #11766270 59343: YEAR(4): INCORRECT RESULT AND VALGRIND WARNINGS WITH MIN/MAX, UNION +--echo # + +CREATE TABLE t1(f1 YEAR(4)); +INSERT INTO t1 VALUES (0000),(2001); +--enable_metadata +(SELECT MAX(f1) FROM t1) UNION (SELECT MAX(f1) FROM t1); +--disable_metadata +DROP TABLE t1; + + +--echo # --echo End of 5.1 tests diff --git a/sql/field.cc b/sql/field.cc index 1ad5e408e07..3707c5b056f 100644 --- a/sql/field.cc +++ b/sql/field.cc @@ -5467,6 +5467,7 @@ double Field_year::val_real(void) longlong Field_year::val_int(void) { ASSERT_COLUMN_MARKED_FOR_READ; + DBUG_ASSERT(field_length == 2 || field_length == 4); int tmp= (int) ptr[0]; if (field_length != 4) tmp%=100; // Return last 2 char @@ -5479,6 +5480,7 @@ longlong Field_year::val_int(void) String *Field_year::val_str(String *val_buffer, String *val_ptr __attribute__((unused))) { + DBUG_ASSERT(field_length < 5); val_buffer->alloc(5); val_buffer->length(field_length); char *to=(char*) val_buffer->ptr(); diff --git a/sql/item_sum.cc b/sql/item_sum.cc index 2a8aea68f7a..c62738abac0 100644 --- a/sql/item_sum.cc +++ b/sql/item_sum.cc @@ -612,17 +612,13 @@ Item_sum_hybrid::fix_fields(THD *thd, Item **ref) switch (hybrid_type= item->result_type()) { case INT_RESULT: - max_length= 20; - break; case DECIMAL_RESULT: + case STRING_RESULT: max_length= item->max_length; break; case REAL_RESULT: max_length= float_length(decimals); break; - case STRING_RESULT: - max_length= item->max_length; - break; case ROW_RESULT: default: DBUG_ASSERT(0); |