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DBLINK_ERROR_MESSAGE(3)                         PostgreSQL 9.5.0 Documentation

NAME
       dblink_error_message - gets last error message on the named connection

SYNOPSIS
       dblink_error_message(text connname) returns text

DESCRIPTION
       dblink_error_message fetches the most recent remote error message for a
       given connection.

ARGUMENTS
       connname
           Name of the connection to use.

RETURN VALUE
       Returns last error message, or an empty string if there has been no
       error in this connection.

EXAMPLES
           SELECT dblink_error_message('dtest1');

PostgreSQL 9.5.0                     2016              DBLINK_ERROR_MESSAGE(3)