centos man page for dblink_cancel_query

DBLINK_CANCEL_QUERY(3)					  PostgreSQL 9.2.7 Documentation				    DBLINK_CANCEL_QUERY(3)

NAME
       dblink_cancel_query - cancels any active query on the named connection

SYNOPSIS
       dblink_cancel_query(text connname) returns text

DESCRIPTION
       dblink_cancel_query attempts to cancel any query that is in progress on the named connection. Note that this is not certain to succeed
       (since, for example, the remote query might already have finished). A cancel request simply improves the odds that the query will fail
       soon. You must still complete the normal query protocol, for example by calling dblink_get_result.

ARGUMENTS
       conname
	   Name of the connection to use.

RETURN VALUE
       Returns OK if the cancel request has been sent, or the text of an error message on failure.

EXAMPLES
	   SELECT dblink_cancel_query('dtest1');

PostgreSQL 9.2.7						    2014-02-17						    DBLINK_CANCEL_QUERY(3)