Jeff Davis wrote:
To give some context, I started a thread a while ago:

http://archives.postgresql.org/pgsql-hackers/2009-10/msg01403.php
Interesting, a join type for overlaps, which makes me think a bit of the staircase join for pre-post coordinates. However, does a join operator type need certain kinds of properties of the operator involved, e.g. being commutative, transitive etc? Else the join reordering fails. The latter fails for the overlap operator.

regards,
Yeb Havinga


--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

Reply via email to