Closes a cursor.
CLOSE frees the resources associated with an open cursor. After the cursor is closed, no subsequent operations are allowed on it. A cursor should be closed when it is no longer needed.
Every non-holdable open cursor is implicitly closed when a transaction is terminated by
ROLLBACK. A holdable cursor is implicitly closed if the transaction that created it is prematurely ended via
ROLLBACK. If the creating transaction successfully commits, the holdable cursor remains open until an explicit
CLOSE is run, or the client disconnects.
Greenplum Database does not have an explicit
OPEN cursor statement. A cursor is considered open when it is declared. Use the
DECLARE statement to declare (and open) a cursor.
You can see all available cursors by querying the pg_cursors system view.
If a cursor is closed after a savepoint which is later rolled back, the
CLOSE is not rolled back; that is the cursor remains closed.
Close the cursor
CLOSE is fully conforming with the SQL standard.
Parent topic: SQL Commands