diff options
Diffstat (limited to 'sql/filesort.cc')
| -rw-r--r-- | sql/filesort.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/filesort.cc b/sql/filesort.cc index 5d8b4e869c8..7b584b39516 100644 --- a/sql/filesort.cc +++ b/sql/filesort.cc @@ -142,6 +142,8 @@ ha_rows filesort(THD *thd, TABLE *table, SORT_FIELD *sortorder, uint s_length, error= 1; bzero((char*) ¶m,sizeof(param)); param.sort_length= sortlength(thd, sortorder, s_length, &multi_byte_charset); + /* filesort cannot handle zero-length records. */ + DBUG_ASSERT(param.sort_length); param.ref_length= table->file->ref_length; param.addon_field= 0; param.addon_length= 0; |