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>4.5. Notification and Notice Processing Commands</A
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>pg_listen</A
> -- set or change a callback for asynchronous notification messages</DT
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>pg_on_connection_loss</A
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>pg_notice_handler</A
> -- Set a callback for notice or warning messages from the server</DT
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>The commands in this section are used to process notices and notification
messages from the database server.
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