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Diffstat (limited to 'src/backend/utils/adt/xid.c')
| -rw-r--r-- | src/backend/utils/adt/xid.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/backend/utils/adt/xid.c b/src/backend/utils/adt/xid.c index 9b4ceaea47f..e4b4952a281 100644 --- a/src/backend/utils/adt/xid.c +++ b/src/backend/utils/adt/xid.c @@ -286,6 +286,30 @@ xid8cmp(PG_FUNCTION_ARGS) PG_RETURN_INT32(-1); } +Datum +xid8_larger(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + if (FullTransactionIdFollows(fxid1, fxid2)) + PG_RETURN_FULLTRANSACTIONID(fxid1); + else + PG_RETURN_FULLTRANSACTIONID(fxid2); +} + +Datum +xid8_smaller(PG_FUNCTION_ARGS) +{ + FullTransactionId fxid1 = PG_GETARG_FULLTRANSACTIONID(0); + FullTransactionId fxid2 = PG_GETARG_FULLTRANSACTIONID(1); + + if (FullTransactionIdPrecedes(fxid1, fxid2)) + PG_RETURN_FULLTRANSACTIONID(fxid1); + else + PG_RETURN_FULLTRANSACTIONID(fxid2); +} + /***************************************************************************** * COMMAND IDENTIFIER ROUTINES * *****************************************************************************/ |