PARTIAL
Remarks
To allow indexing on CHAR and VARCHAR columns wider than 255 bytes, include the
PARTIAL
keyword in the
CREATE INDEX
statement. If the column(s) that make up the partial index, including overhead, contain less than 255 bytes,
PARTIAL
is ignored.
Note:
The
PARTIAL
keyword is not required with the
DROP INDEX
statement to remove a partial index.
UNIQUE and PARTIAL are mutually exclusive and cannot be used in the same CREATE INDEX statement.
See Also
CREATE INDEX
DROP INDEX
UNIQUE