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RELEASE
NAME
RELEASE SAVEPOINT - destroy a previously defined savepoint
SYNOPSIS
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 ROLLBACK TO
SAVEPOINT [rollback_to_savepoint(5)].) Destroying a savepoint when it is no
longer needed may allow 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:2003 standard. The standard specifies that
the key word SAVEPOINT is mandatory, but PostgreSQL allows it to be
omitted.
SEE ALSO
BEGIN [begin(5)], COMMIT [commit(l)], ROLLBACK [rollback(l)], ROLLBACK TO
SAVEPOINT [rollback_to_savepoint(l)], SAVEPOINT [savepoint(l)]
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Index for Section SAVEPOINT |
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Alphabetical listing for R |
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Top of page |
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