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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2020-11-02 15:48:47 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2020-11-02 15:48:47 +0200 |
| commit | c7f322c91faf97a9f758c288b38e1385fd89b32d (patch) | |
| tree | cf2a4cf562acffdf5b4b96d84e34f29c7f428458 /sql/sql_select.cc | |
| parent | d5ce7824444b7491f420061076ae5087d4829428 (diff) | |
| parent | 8036d0a3590dddf4d51ba02bc74ba3a5a96674f7 (diff) | |
| download | mariadb-git-c7f322c91faf97a9f758c288b38e1385fd89b32d.tar.gz | |
Merge 10.2 into 10.3
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 37755387dda..7580dc0f2c6 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -27011,10 +27011,10 @@ JOIN::reoptimize(Item *added_where, table_map join_tables, if (save_to) { DBUG_ASSERT(!keyuse.elements); - memcpy(keyuse.buffer, - save_to->keyuse.buffer, - (size_t) save_to->keyuse.elements * keyuse.size_of_element); keyuse.elements= save_to->keyuse.elements; + if (size_t e= keyuse.elements) + memcpy(keyuse.buffer, + save_to->keyuse.buffer, e * keyuse.size_of_element); } /* Add the new access methods to the keyuse array. */ |