[EMAIL PROTECTED] wrote:
> DECLARE
>   varUnlocked boolean;
> BEGIN
> varUnlocked:= pg_try_advisory_lock( 783264760123456 ); -- Try to lock function
> IF not varUnlocked THEN return NULL; END IF; -- exit if locking is 
> unsucessfull
> 
> WRONG QUERY HERE WHICH INTERRUPT EXECUTION
> 
> varUnlocked:= pg_advisory_unlock( 783264760123456 ); -- unlock function
> END
> 
> NEXT time when I run this function I always get NULL until server reboot
> 
> EXPECTED: Pg must unlock if function execution failed

You can unlock it in an EXCEPTION block to be safe.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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