Hi Ashutosh,
Thank you for the review.
> Thanks. This will do. Is there a way to force the larger partition to
> be computed first? That way we definitely know that the last
> computation was done when all the tuples in the tuplestore were in
> memory.
Not sure if there's any way to force it in the SQL standard. However
in term of implementation, PostgreSQL sorts the function
(generate_series) scan result using a sort key "a.n < 3", which
results in rows being >= 2 first (as false == 0), then rows being < 3
(as true == 1). So unless PostgreSQL changes the way to sort boolean
data type, I think the result should be stable.
Best reagards,
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp
