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Fix ancient docs/comments thinko: XID comparison is mod 2^32, not 2^31.

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Pointed out by Gianni Ciolli.
This commit is contained in:
Tom Lane
2013-12-12 12:39:54 -05:00
parent 27902bc916
commit b57947aa9c
2 changed files with 2 additions and 2 deletions
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2
src/backend/access/transam/transam.c
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@ -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;