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Bug#11764994 57900: CREATE TABLE .. SELECT ASSERTS SCALE >= 0 && PRECISION > 0 && SCALE <= PR

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Assert fails due to overflow which happens in
Item_func_int_val::fix_num_length_and_dec() as
geometry functions have max_length value equal to
max_field_size(4294967295U). The fix is to skip
max_length calculation for some boundary cases.


mysql-test/r/func_math.result:
  test case
mysql-test/t/func_math.test:
  test case
sql/item_func.cc:
  skip max_length calculation
  if argument max_length is near max_field_size.
This commit is contained in:
Sergey Glukhov 2011-03-28 12:35:50 +04:00
commit a88faf2a4a
3 changed files with 20 additions and 3 deletions
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9
mysql-test/t/func_math.test
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@ -324,4 +324,13 @@ CREATE TABLE t1 SELECT CAST((CASE(('')) WHEN (CONVERT(1, CHAR(1))) THEN (('' / 1
SHOW CREATE TABLE t1;
DROP TABLE t1;
--echo #
--echo # Bug#11764994 57900: CREATE TABLE .. SELECT ASSERTS SCALE >= 0 && PRECISION > 0 && SCALE <= PR
--echo #
CREATE TABLE t1 SELECT CEIL(LINESTRINGFROMWKB(1) DIV NULL);
DROP TABLE t1;
CREATE TABLE t1 SELECT FLOOR(LINESTRINGFROMWKB(1) DIV NULL);
DROP TABLE t1;
--echo End of 5.1 tests