Hi all,
I have developed a new query optimizer for PostgreSQL and I would like
to share it with the community. The optimizer's name is Sampling and
Dynamic Programming (SDP). I put it into a plugin developed some years
ago, named LJQO:
https://github.com/alange0001/ljqo.git
This plugin was configured to compile only against PostgreSQL 9.2.
However, I guess it may be easily adjusted for other versions of PostgreSQL.
I would be glad for any feedback about SDP or even about LJQO.
I have some numbers about the SDP in comparison with GEQO. If
interested, see a diff between the two ".out2" files attached. The
schema and query are from a previous email posted by Andres Freund in
this list.
Thanks for attention.
Adriano Lange
