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| author | Neeraj Bisht <neeraj.x.bisht@oracle.com> | 2013-01-29 10:06:31 +0530 |
|---|---|---|
| committer | Neeraj Bisht <neeraj.x.bisht@oracle.com> | 2013-01-29 10:06:31 +0530 |
| commit | 5a4cdc5f8eac3b58013317bb1386e117b9744c3b (patch) | |
| tree | 176cb35e7fb66c4730a295370b2d309b5cdd5318 /sql/opt_range.cc | |
| parent | ff0c072913ae065a6345eaaf83a90ba6d6b8bb63 (diff) | |
| parent | 265814f2ae1ddf8eb089ce703a58b9a43b2bc1f9 (diff) | |
| download | mariadb-git-5a4cdc5f8eac3b58013317bb1386e117b9744c3b.tar.gz | |
Bug#16208709 - CRASH IN GET_SEL_ARG_FOR_KEYPART ON SELECT DISTINCT
ON COL WITH COMPOSITE INDEX
This problem is caused by the patch for the bug#11751794.
While checking for the keypart covering non grouping attribute. we are not
checking whether the root node of the SEL_ARG* tree for the index have any
cvalue or not.
sql/opt_range.cc:
check whether the keeypart_tree has any range tree.
Diffstat (limited to 'sql/opt_range.cc')
| -rw-r--r-- | sql/opt_range.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/opt_range.cc b/sql/opt_range.cc index 8481e16082b..c078d9ac85b 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -10085,6 +10085,8 @@ get_sel_arg_for_keypart(Field *nga_field, SEL_ARG *keypart_tree, SEL_ARG **cur_range) { + if(keypart_tree == NULL) + return false; if(keypart_tree->field->eq(nga_field)) { /* |