NAME

       dblink_send_query - sends an async query to a remote database

SYNOPSIS

       dblink_send_query(text connname, text sql) returns int

DESCRIPTION

           Note
           The following description applies only to Postgres-XC

       dblink module has not been tested with Postges-XC yet. Although there're no reason that
       dblink does not run in Postgres-XC, the development team leaves the test and the use of
       this module entirely to users.

       This section is identical to the corresponding PostgreSQL reference manual.

           Note
           The following description applies only to PostgreSQL

       dblink_send_query sends a query to be executed asynchronously, that is, without
       immediately waiting for the result. There must not be an async query already in progress
       on the connection.

       After successfully dispatching an async query, completion status can be checked with
       dblink_is_busy, and the results are ultimately collected with dblink_get_result. It is
       also possible to attempt to cancel an active async query using dblink_cancel_query.

ARGUMENTS

           Note
           The following description applies only to Postgres-XC

       dblink module has not been tested with Postges-XC yet. Although there're no reason that
       dblink does not run in Postgres-XC, the development team leaves the test and the use of
       this module entirely to users.

       This section is identical to the corresponding PostgreSQL reference manual.

           Note
           The following description applies only to PostgreSQL

       conname
           Name of the connection to use.

       sql
           The SQL statement that you wish to execute in the remote database, for example select
           * from pg_class.

RETURN VALUE

           Note
           The following description applies only to Postgres-XC

       dblink module has not been tested with Postges-XC yet. Although there're no reason that
       dblink does not run in Postgres-XC, the development team leaves the test and the use of
       this module entirely to users.

       This section is identical to the corresponding PostgreSQL reference manual.

           Note
           The following description applies only to PostgreSQL

       Returns 1 if the query was successfully dispatched, 0 otherwise.

EXAMPLES

           Note
           The following description applies only to Postgres-XC

       dblink module has not been tested with Postges-XC yet. Although there're no reason that
       dblink does not run in Postgres-XC, the development team leaves the test and the use of
       this module entirely to users.

       This section is identical to the corresponding PostgreSQL reference manual.

           Note
           The following description applies only to PostgreSQL

           SELECT dblink_send_query('dtest1', 'SELECT * FROM foo WHERE f1 < 3');