On Tue, Aug 23, 2016 at 4:06 PM, Rakesh Kumar <rakeshkumar464a3@xxxxxxxxx> wrote: > Is it true that one datafile in PG can only belong to one object (table/index) If this is a question, yes, AFAIK ( in fact they are split in 1G chunks to prevent problems with quirky filesystems ). Search for "Each table and index is stored in a separate file" in https://www.postgresql.org/docs/9.5/static/storage-file-layout.html A full periodic read, even if superficial, of the postgres manual, is quite beneficial. I feel poetic today ;-> . Seriously, is quite well written and full of interesting information, even if skipping large chunks knowing where the info is can sava you a lot of work and mails. AAMOF, it's one of the main reasons I've been using postgres all this years. Francisco Olarte. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general