This polling event accepts SQL script and is fired before the Notifier checks the consolidated database for push requests. The value is null by default, so this event is not fired.
This example creates a push request for a Notifier named Notifier A. It uses a SQL statement that inserts rows into a table named PushRequest. Each row in this table represents a message to send to an address. The WHERE clause determines which push requests are inserted into the PushRequest table.
To use the ml_add_property system procedure with a SQL Anywhere consolidated database, run the following command:
ml_add_property( 'SIS', 'Notifier(Notifier A)', 'begin_connection', 'INSERT INTO PushRequest (gateway, mluser, subject, content) SELECT ''MyGateway'', DISTINCT mluser, ''sync'', stream_param FROM MLUserExtra, mluser_union, Dealer WHERE MLUserExtra.mluser = mluser_union.name AND (push_sync_status = ''waiting for request'' OR datediff( hour, last_status_change, now() ) > 12 ) AND ( mluser_union.publication_name is NULL OR mluser_union.publication_name =''FullSync'' ) AND Dealer.last_modified > mluser_union.last_sync_time' );
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