RELEASE SAVEPOINT
savepoints
releasing
RELEASE SAVEPOINT
7
SQL - Language Statements
RELEASE SAVEPOINT
destroy a previously defined savepoint
RELEASE [ SAVEPOINT ] savepoint_name
Description
RELEASE SAVEPOINT destroys a savepoint previously defined
in the current transaction.
Destroying a savepoint makes it unavailable as a rollback point,
but it has no other user visible behavior. It does not undo the
effects of commands executed after the savepoint was established.
(To do that, see .)
Destroying a savepoint when
it is no longer needed allows the system to reclaim some resources
earlier than transaction end.
RELEASE SAVEPOINT also destroys all savepoints that were
established after the named savepoint was established.
Parameters
savepoint_name
The name of the savepoint to destroy.
Notes
Specifying a savepoint name that was not previously defined is an error.
It is not possible to release a savepoint when the transaction is in
an aborted state.
If multiple savepoints have the same name, only the one that was most
recently defined is released.
Examples
To establish and later destroy a savepoint:
BEGIN;
INSERT INTO table1 VALUES (3);
SAVEPOINT my_savepoint;
INSERT INTO table1 VALUES (4);
RELEASE SAVEPOINT my_savepoint;
COMMIT;
The above transaction will insert both 3 and 4.
Compatibility
This command conforms to the SQL standard. The standard
specifies that the key word SAVEPOINT is
mandatory, but PostgreSQL allows it to
be omitted.
See Also