F.11. dblink — connect to other PostgreSQL databases
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## F.11. dblink — connect to other PostgreSQL databases #

`dblink` is a module that supports connections to other PostgreSQL databases from within a database session.

`dblink` can report the following wait events under the wait event type `Extension`.

`DblinkConnect`

  Waiting to establish a connection to a remote server.

`DblinkGetConnect`

  Waiting to establish a connection to a remote server when it could not be found in the list of already-opened connections.

`DblinkGetResult`

  Waiting to receive the results of a query from a remote server.

See also postgres_fdw, which provides roughly the same functionality using a more modern and standards-compliant infrastructure.

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