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Bug #59241 invalid memory read in do_div_mod with doubly assigned variables

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Fix: copy my_decimal by value, to avoid dangling pointers.
This commit is contained in:
Tor Didriksen
2011-01-14 10:05:14 +01:00
parent cfa9a4bde6
commit 8dfab82ee0
7 changed files with 44 additions and 22 deletions
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9
mysql-test/r/func_math.result
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@ -641,3 +641,12 @@ INSERT INTO t1 (SELECT -pi());
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
DROP TABLE t1;
#
# Bug #59241 invalid memory read
# in do_div_mod with doubly assigned variables
#
SELECT ((@a:=@b:=1.0) div (@b:=@a:=get_format(datetime, 'usa')));
((@a:=@b:=1.0) div (@b:=@a:=get_format(datetime, 'usa')))
NULL
Warnings:
Warning 1366 Incorrect decimal value: '' for column '' at row -1