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| author | Neeraj Bisht <neeraj.x.bisht@oracle.com> | 2013-01-29 10:05:00 +0530 |
|---|---|---|
| committer | Neeraj Bisht <neeraj.x.bisht@oracle.com> | 2013-01-29 10:05:00 +0530 |
| commit | 265814f2ae1ddf8eb089ce703a58b9a43b2bc1f9 (patch) | |
| tree | 188f6ea31f60dabdeee9b8ff8664ab6452040746 /sql | |
| parent | d1378565bba59726ae3f4d47d0709e68d77110ed (diff) | |
| download | mariadb-git-265814f2ae1ddf8eb089ce703a58b9a43b2bc1f9.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.
Diffstat (limited to 'sql')
| -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 4e67727462c..ae6878c6756 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -9870,6 +9870,8 @@ 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)) { /* |