Hi Fujita-san, (2011/09/12 19:40), Etsuro Fujita wrote: > Hi there, > > To enable file_fdw to estimate costs of scanning a CSV file more > accurately, I would like to propose a new FDW callback routine, > AnalyzeForeignTable, which allows to ANALYZE command to collect > statistics on a foreign table, and a corresponding file_fdw function, > fileAnalyzeForeignTable. Attached is my WIP patch. <snip>
I think this is a very nice feature so that planner would be able to create smarter plan for a query which uses foreign tables. I took a look at the patch, and found that it couldn't be applied cleanly against HEAD. Please rebase your patch against current HEAD of master branch, rather than 9.1beta1. The wiki pages below would be helpful for you. http://wiki.postgresql.org/wiki/Submitting_a_Patch http://wiki.postgresql.org/wiki/Creating_Clean_Patches http://wiki.postgresql.org/wiki/Reviewing_a_Patch And it would be easy to use git to follow changes made by other developers in master branch. http://wiki.postgresql.org/wiki/Working_with_Git Regards, -- Shigeru Hanada -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
