Thanks! Best regards, Etsuro Fujita
-----Original Message----- From: pgsql-hackers-ow...@postgresql.org [mailto:pgsql-hackers-ow...@postgresql.org] On Behalf Of Tom Lane Sent: Saturday, April 07, 2012 4:20 AM To: Shigeru HANADA Cc: Etsuro Fujita; pgsql-hackers@postgresql.org Subject: Re: [HACKERS] WIP: Collecting statistics on CSV file data Shigeru HANADA <shigeru.han...@gmail.com> writes: > Just after my post, Fujita-san posted another v7 patch[1], so I merged > v7 patches into v8 patch. I've committed a modified version of this, but right after pushing it I had a better idea about what the AnalyzeForeignTable API should do. An issue that I'd not previously figured out is how analysis of an inheritance tree could deal with foreign-table members, because it wants to estimate the members' sizes before collecting the actual sample rows. However, given that we've got the work split into a precheck phase and a sample collection phase, that's not hard to solve: we could insist that the FDW give back a size estimate in the precheck phase not the sample collection phase. I'm off to fix that up ... regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
