The document describes the Black Hole Foreign Data Wrapper, which is presented as a minimal but working foreign data wrapper that can be used as a skeleton for developing real foreign data wrappers. It claims to provide unsurpassed data compression, zero unintentional data loss, and unbeatable speed, but notes that it is almost totally useless. The author encourages attending their talk the next morning to learn about what can be done with a real FDW and contributing more FDWs, especially with the new ability to support Insert, Update and Delete operations.

1. Black Hole Foreign Data Wrapper
Andrew Dunstan
andrew@dunslane.net
andrew.dunstan@pgexperts.com

2. Have you ever worried that you
have too much data?

3. Have you ever worried where
your next hard drive or Fusion IO
drive is coming from?

4. Sometimes, getting the right
answer and saving your data
safely just takes too much time
and space.

5. Stop Worrying!

6. Just put your data in the
blackhole.

7. That's the Blackhole Foreign
Data Wrapper
https://bitbucket.org/adunstan/blackhole_fdw

8. Unsurpassed, and unsurpassable
data compression

9. Guaranteed to be zero
unintentional data loss.

10. Unbeatable speed

11. andrew=# create foreign table blackhole
(x int) server blackhole_server ;
CREATE FOREIGN TABLE
andrew=# select * from blackhole ;
x
---
(0 rows)
andrew=# timing
Timing is on.
andrew=# insert into blackhole
select i from generate_series(1,1000000) i;
INSERT 0 1000000
Time: 518.862 ms

12. On a lighter note ...

13. Fully functional if almost totally
useless FDW.

14. Intention was to provide a
minimal but working FDW to use
as a skeleton.

15. If you want to see what can be
done with a REAL FDW, come to
my talk tomorrow morning.

16. And write more FDWs, especially
now we can support
Insert/Update/Delete