From: | Markus Schaber <schabi(at)logix-tt(dot)com> |
---|---|
To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | send()/receive() and on-disk storage |
Date: | 2006-09-29 13:44:07 |
Message-ID: | 451D2327.1080002@logix-tt.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
Hi,
Currently, there's a discussion on the pljava list, and we're confused
about a small detail:
Does PostgreSQL call the datatypes' defined send() function before
storing the tuple data in the table, on disk, and call receive() when
reading it again?
My position was that send()/receive() are only used for client
communication in the V3 protocol binary mode, and COPY in binary mode,
but the backend stores them in the tables as_is (modulo compression/
TOASTing).
Is my assumption correct?
Btw, I'm going to triple-check this in the source and via tests, too.
Thanks,
Markus
--
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf. | Software Development GIS
Fight against software patents in Europe! www.ffii.org
www.nosoftwarepatents.org
From | Date | Subject | |
---|---|---|---|
Next Message | Martijn van Oosterhout | 2006-09-29 13:51:56 | Re: send()/receive() and on-disk storage |
Previous Message | Marlon Petry | 2006-09-29 13:40:12 | Re: Backup and restore through JDBC |