RELEASE_SAVEPOINT(7)

1RELEASE SAVEPOINT(7)    PostgreSQL 9.2.24 Documentation   RELEASE SAVEPOINT(7)
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NAME

6       RELEASE_SAVEPOINT - destroy a previously defined savepoint
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SYNOPSIS

9       RELEASE [ SAVEPOINT ] savepoint_name
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DESCRIPTION

12       RELEASE SAVEPOINT destroys a savepoint previously defined in the
13       current transaction.
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15       Destroying a savepoint makes it unavailable as a rollback point, but it
16       has no other user visible behavior. It does not undo the effects of
17       commands executed after the savepoint was established. (To do that, see
18       ROLLBACK TO SAVEPOINT (ROLLBACK_TO_SAVEPOINT(7)).) Destroying a
19       savepoint when it is no longer needed allows the system to reclaim some
20       resources earlier than transaction end.
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22       RELEASE SAVEPOINT also destroys all savepoints that were established
23       after the named savepoint was established.
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PARAMETERS

26       savepoint_name
27           The name of the savepoint to destroy.
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NOTES

30       Specifying a savepoint name that was not previously defined is an
31       error.
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33       It is not possible to release a savepoint when the transaction is in an
34       aborted state.
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36       If multiple savepoints have the same name, only the one that was most
37       recently defined is released.
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EXAMPLES

40       To establish and later destroy a savepoint:
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42           BEGIN;
43               INSERT INTO table1 VALUES (3);
44               SAVEPOINT my_savepoint;
45               INSERT INTO table1 VALUES (4);
46               RELEASE SAVEPOINT my_savepoint;
47           COMMIT;
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49       The above transaction will insert both 3 and 4.
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COMPATIBILITY

52       This command conforms to the SQL standard. The standard specifies that
53       the key word SAVEPOINT is mandatory, but PostgreSQL allows it to be
54       omitted.
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