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Fixed bug #31471: decimal_bin_size: Assertion `scale >= 0 &&

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precision > 0 && scale <= precision'.

A sign of a resulting item of the IFNULL function was not
updated and the maximal length of this result was calculated
improperly. Correct algorithm was copy&pasted from the IF
function implementation.


sql/item_cmpfunc.cc:
  Fixed bug #31471.
  The Item_func_ifnull::fix_length_and_dec method has been
  modified to update the Item_func_ifnull::unsigned_flag field
  and to take this field into account when calculating the
  Item_func_ifnull::max_length value.
  (See Item_func_if::fix_length_and_dec for reference).
mysql-test/t/null.test:
  Added test case for bug #31471.
mysql-test/r/null.result:
  Added test case for bug #31471.
mysql-test/r/create.result:
  Update test case after the bugfix of bug #31471.
This commit is contained in:
unknown
2007-10-10 20:14:29 +05:00
parent 6146c0c75d
commit c866f8015f
4 changed files with 64 additions and 8 deletions
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2
mysql-test/r/create.result
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@ -425,7 +425,7 @@ explain t2;
Field Type Null Key Default Extra
a int(11) YES NULL
b bigint(11) NO 0
c bigint(11) NO 0
c bigint(11) unsigned NO 0
d date YES NULL
e varchar(1) NO
f datetime YES NULL