diff options
Diffstat (limited to 'sql/sql_join_cache.cc')
| -rw-r--r-- | sql/sql_join_cache.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/sql_join_cache.cc b/sql/sql_join_cache.cc index 5a243cd0a6d..4b879293fdb 100644 --- a/sql/sql_join_cache.cc +++ b/sql/sql_join_cache.cc @@ -1397,7 +1397,8 @@ uint JOIN_CACHE::write_record_data(uchar * link, bool *is_full) blob_field->get_image(cp, copy->length, blob_field->charset()); DBUG_ASSERT(cp + copy->length + copy->blob_length <= buff + buff_size); - memcpy(cp+copy->length, copy->str, copy->blob_length); + if (copy->blob_length) + memcpy(cp+copy->length, copy->str, copy->blob_length); cp+= copy->length+copy->blob_length; } break; |