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| author | unknown <gkodinov/kgeorge@magare.gmz> | 2008-02-28 13:31:19 +0200 |
|---|---|---|
| committer | unknown <gkodinov/kgeorge@magare.gmz> | 2008-02-28 13:31:19 +0200 |
| commit | f28612eae272fb56f9bb07bddf31852882af7ed8 (patch) | |
| tree | 3a08d6d15a1418bf0adfa48f246ca27e23b2dce0 /mysql-test/t/func_gconcat.test | |
| parent | 87007702fe6348de943a825e81f8d8f4bbb1af5a (diff) | |
| download | mariadb-git-f28612eae272fb56f9bb07bddf31852882af7ed8.tar.gz | |
Bug #34747: crash in debug assertion check after derived table
Was a double-free of the Unique member of Item_func_group_concat.
This was not causing a crash because the Unique is a descendent of
Sql_alloc.
Fixed to free the Unique only if it was allocated for the instance
of Item_func_group_concat it was referenced from
mysql-test/r/func_gconcat.result:
Bug #34747: test case
mysql-test/t/func_gconcat.test:
Bug #34747: test case
sql/item_sum.cc:
Bug #34747: free the Unique only if it was allocated
for this instance of Item_func_group_concat
Diffstat (limited to 'mysql-test/t/func_gconcat.test')
| -rw-r--r-- | mysql-test/t/func_gconcat.test | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test index 84c286e516b..87632fbdbb8 100644 --- a/mysql-test/t/func_gconcat.test +++ b/mysql-test/t/func_gconcat.test @@ -640,4 +640,21 @@ SELECT GROUP_CONCAT(DISTINCT b, a ORDER BY b) FROM t1; DROP TABLE t1, t2, t3; +# +# Bug #34747: crash in debug assertion check after derived table +# +CREATE TABLE t1(a INT); +INSERT INTO t1 VALUES (),(); +SELECT s1.d1 FROM +( + SELECT + t1.a as d1, + GROUP_CONCAT(DISTINCT t1.a) AS d2 + FROM + t1 AS t1, + t1 AS t2 + GROUP BY 1 +) AS s1; +DROP TABLE t1; + --echo End of 5.0 tests |