"SHARMILA JOTHIRAJAH" <[EMAIL PROTECTED]> writes: > Now for > SELECT * FROM Foo WHERE b='2' > > it should know to access only Foo_2, I suppose it could be done > with a rule, but that should work even if b='2' is implicitly > given (not just if b = <constant>) is stated explicitly.
This much already exists in Postgres. If you define constraints on the partitions with an expression like (b=2) and turn on the constraint_exclusion guc variable Postgres will do this. The rest of your message lists a number of other interesting avenues but I'm not sure it's the only way to go about accomplishing the things you need. I would be interested to know more generally what problems you anticipate with your application and what your needs are at a high level. The solutions you propose are pretty specific and there have been other techniques proposed in the past which may be more attractive than these specific solutions. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
