From ccca6f56f5e027f28b033e5e2754e9ad18e8c9ae Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Thu, 12 Dec 2013 12:39:48 -0500 Subject: Fix ancient docs/comments thinko: XID comparison is mod 2^32, not 2^31. Pointed out by Gianni Ciolli. --- src/backend/access/transam/transam.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/backend/access/transam/transam.c') diff --git a/src/backend/access/transam/transam.c b/src/backend/access/transam/transam.c index 3cc0096d92a..b92a27bff36 100644 --- a/src/backend/access/transam/transam.c +++ b/src/backend/access/transam/transam.c @@ -301,7 +301,7 @@ TransactionIdPrecedes(TransactionId id1, TransactionId id2) { /* * If either ID is a permanent XID then we can just do unsigned - * comparison. If both are normal, do a modulo-2^31 comparison. + * comparison. If both are normal, do a modulo-2^32 comparison. */ int32 diff; -- cgit v1.2.3