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release_savepoint (7)
  • >> release_savepoint (7) ( Linux man: Макропакеты и соглашения )
  •  

    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(7)].) 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 standard. The standard specifies that the key word SAVEPOINT is mandatory, but PostgreSQL allows it to be omitted.  

    SEE ALSO

    BEGIN [begin(7)], COMMIT [commit(l)], ROLLBACK [rollback(l)], ROLLBACK TO SAVEPOINT [rollback_to_savepoint(l)], SAVEPOINT [savepoint(l)]


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    PARAMETERS
    NOTES
    EXAMPLES
    COMPATIBILITY
    SEE ALSO


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