NISAM
.
ISAM
when doing some ORDER BY ... DESC
queries.
--delay-key-write
didn't enable delayed key writing.
TEXT
column which involved only case changes.
INSERT DELAYED
doesn't update timestamps that are given.
YEARWEEK()
and options x
, X
, v
and
V
to DATE_FORMAT()
.
MAX(indexed_column)
and HEAP
tables.
BLOB NULL
keys and LIKE "prefix%"
.
MyISAM
and fixed-length rows < 5 bytes.
GROUP BY
queries.
ENUM
field value
was too big.