1738 SetOldSnapshotThresholdTimestamp(TimestampTz ts, TransactionId xlimit)  in SetOldSnapshotThresholdTimestamp()  argument
1742 	oldSnapshotControl->threshold_xid = xlimit;  in SetOldSnapshotThresholdTimestamp()
1764 		TransactionId xlimit = recentXmin;  in TransactionIdLimitedForOldSnapshots()  local
1785 				&& TransactionIdFollows(latest_xmin, xlimit))  in TransactionIdLimitedForOldSnapshots()
1786 				xlimit = latest_xmin;  in TransactionIdLimitedForOldSnapshots()
1789 			SetOldSnapshotThresholdTimestamp(ts, xlimit);  in TransactionIdLimitedForOldSnapshots()
1791 			return xlimit;  in TransactionIdLimitedForOldSnapshots()
1801 			xlimit = oldSnapshotControl->threshold_xid;  in TransactionIdLimitedForOldSnapshots()
1810 				xlimit = latest_xmin;  in TransactionIdLimitedForOldSnapshots()
1811 				if (NormalTransactionIdFollows(xlimit, recentXmin))  in TransactionIdLimitedForOldSnapshots()
1812 					SetOldSnapshotThresholdTimestamp(ts, xlimit);  in TransactionIdLimitedForOldSnapshots()
1829 					xlimit = oldSnapshotControl->xid_by_minute[offset];  in TransactionIdLimitedForOldSnapshots()
1831 					if (NormalTransactionIdFollows(xlimit, recentXmin))  in TransactionIdLimitedForOldSnapshots()
1832 						SetOldSnapshotThresholdTimestamp(ts, xlimit);  in TransactionIdLimitedForOldSnapshots()
1849 			&& TransactionIdPrecedes(latest_xmin, xlimit))  in TransactionIdLimitedForOldSnapshots()
1850 			xlimit = latest_xmin;  in TransactionIdLimitedForOldSnapshots()
1852 		if (NormalTransactionIdFollows(xlimit, recentXmin))  in TransactionIdLimitedForOldSnapshots()
1853 			return xlimit;  in TransactionIdLimitedForOldSnapshots()