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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2020-11-03 16:24:47 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2020-11-03 16:24:47 +0200 |
| commit | 133b4b46fefde402542214d8226262534dc3601a (patch) | |
| tree | 51bbdc0ee35a4af61e5af6d97948963ae9354f39 /sql/sql_select.cc | |
| parent | 44836bcd12e3974e79c928be747955bfb3b73910 (diff) | |
| parent | 533a13af069d8c9e6c5f4e1a72851497185ade03 (diff) | |
| download | mariadb-git-133b4b46fefde402542214d8226262534dc3601a.tar.gz | |
Merge 10.4 into 10.5
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 2a856a0d51f..6071fe10929 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -27984,10 +27984,10 @@ 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. */ |