Commit e74ba054 authored by serg@sergbook.mysql.com's avatar serg@sergbook.mysql.com
Browse files

bugfix: uniques did not contributed to MYI tot_length estimation, which... 

bugfix: uniques did not contributed to MYI tot_length estimation, which resulted in "Index file full" error on huge SELECT DISTINCT's
parent a4384f85

myisam/mi_create.c

+6 −3
Original line number Diff line number Diff line
@@ -396,6 +396,9 @@ int mi_create(const char *name,uint keys,MI_KEYDEF *keydefs, 
    uniquedef->key=keys+i;

    unique_key_parts+=uniquedef->keysegs;

    share.state.key_root[keys+i]= HA_OFFSET_ERROR;

    tot_length+= (max_rows/(ulong) (((uint) myisam_block_size-5)/

                         ((MI_UNIQUE_HASH_LENGTH + pointer)*2)))*

                         (ulong) myisam_block_size;

  }

  keys+=uniques;				/* Each unique has 1 key */

  key_segs+=uniques;				/* Each unique has 1 key seg */