On Oct 3, 2011, at 6:52 AM, 姜头 wrote: > How can i get record by data block not by sql? > > I want to read and write lots of data by data blocks and write record to a > appointed data block and read it. > so i can form a disk-resident tree by recording the block address. But i > don't know how to implement in postgresql. > Is there system function can do this? > Can someone help me?? Thank you very very much!!!!1
It sounds like you should look into the COPY command, or, if you're adventurous, the pg_bulkload project. They might get you the speed you're after, if not quite the implementation. But if what you're really after is to manipulate the table files directly - and I'm not sure why that would be a goal in itself - then perhaps SQL isn't for you. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
