Dear List
I use plpgsql function as a postfix mailserver look-up table. For
example to look up virtual email address.
If I don't host this email address, then the function returns null.
Because it's a 1 row of null value postfix logs a warning message.
Although it's harmless in that postfix takes no further action to
deliver mail, these warning messages fill up log table.
How can I return 0 row from plpgsql function?
Thanks
mr.wu
