Provided by: postgresql-doc-11_11.5-1_all bug

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

       connname
           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');