From ba2edcac4fd3c41b58a72f0244ebc0caaeead4af Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Wed, 22 Nov 2006 04:17:03 +0000 Subject: Mention OIDs are now not created by default. --- doc/FAQ | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'doc/FAQ') diff --git a/doc/FAQ b/doc/FAQ index 7036cfc6631..89292219a16 100644 --- a/doc/FAQ +++ b/doc/FAQ @@ -1,7 +1,7 @@ Frequently Asked Questions (FAQ) for PostgreSQL - Last updated: Tue Nov 21 10:37:54 EST 2006 + Last updated: Tue Nov 21 23:16:54 EST 2006 Current maintainer: Bruce Momjian (bruce@momjian.us) @@ -728,11 +728,11 @@ 4.12) What is an OID? What is a CTID? - Every row that is created in PostgreSQL gets a unique OID unless - created WITHOUT OIDS. OIDs are automatically assigned unique 4-byte - integers that are unique across the entire installation. However, they - overflow at 4 billion, and then the OIDs start being duplicated. - PostgreSQL uses OIDs to link its internal system tables together. + If a table is created WITH OIDS, each row gets a unique a OID. OIDs + are automatically assigned unique 4-byte integers that are unique + across the entire installation. However, they overflow at 4 billion, + and then the OIDs start being duplicated. PostgreSQL uses OIDs to link + its internal system tables together. To uniquely number rows in user tables, it is best to use SERIAL rather than OIDs because SERIAL sequences are unique only within a -- cgit v1.2.3