1 files changed, 22 insertions, 22 deletions

diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 2f2c6acb968..27aea739e6b 100644
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -64,7 +64,7 @@ static BufferAccessStrategy vac_strategy;
 
 /* non-export function prototypes */
 static List *get_rel_oids(Oid relid, const RangeVar *vacrel);
-static void vac_truncate_clog(TransactionId frozenXID, MultiXactId frozenMulti);
+static void vac_truncate_clog(TransactionId frozenXID, MultiXactId minMulti);
 static bool vacuum_rel(Oid relid, VacuumStmt *vacstmt, bool do_toast,
 		   bool for_wraparound);
 
@@ -384,7 +384,7 @@ vacuum_set_xid_limits(int freeze_min_age,
 					  TransactionId *oldestXmin,
 					  TransactionId *freezeLimit,
 					  TransactionId *freezeTableLimit,
-					  MultiXactId *multiXactFrzLimit)
+					  MultiXactId *multiXactCutoff)
 {
 	int			freezemin;
 	TransactionId limit;
@@ -469,7 +469,7 @@ vacuum_set_xid_limits(int freeze_min_age,
 		*freezeTableLimit = limit;
 	}
 
-	if (multiXactFrzLimit != NULL)
+	if (multiXactCutoff != NULL)
 	{
 		MultiXactId mxLimit;
 
@@ -481,7 +481,7 @@ vacuum_set_xid_limits(int freeze_min_age,
 		if (mxLimit < FirstMultiXactId)
 			mxLimit = FirstMultiXactId;
 
-		*multiXactFrzLimit = mxLimit;
+		*multiXactCutoff = mxLimit;
 	}
 }
 
@@ -690,8 +690,8 @@ vac_update_relstats(Relation relation,
  *		Update pg_database's datfrozenxid entry for our database to be the
  *		minimum of the pg_class.relfrozenxid values.
  *
- *		Similarly, update our datfrozenmulti to be the minimum of the
- *		pg_class.relfrozenmulti values.
+ *		Similarly, update our datminmxid to be the minimum of the
+ *		pg_class.relminmxid values.
  *
  *		If we are able to advance either pg_database value, also try to
  *		truncate pg_clog and pg_multixact.
@@ -711,7 +711,7 @@ vac_update_datfrozenxid(void)
 	SysScanDesc scan;
 	HeapTuple	classTup;
 	TransactionId newFrozenXid;
-	MultiXactId newFrozenMulti;
+	MultiXactId newMinMulti;
 	bool		dirty = false;
 
 	/*
@@ -726,7 +726,7 @@ vac_update_datfrozenxid(void)
 	 * Similarly, initialize the MultiXact "min" with the value that would be
 	 * used on pg_class for new tables.  See AddNewRelationTuple().
 	 */
-	newFrozenMulti = GetOldestMultiXactId();
+	newMinMulti = GetOldestMultiXactId();
 
 	/*
 	 * We must seqscan pg_class to find the minimum Xid, because there is no
@@ -756,8 +756,8 @@ vac_update_datfrozenxid(void)
 		if (TransactionIdPrecedes(classForm->relfrozenxid, newFrozenXid))
 			newFrozenXid = classForm->relfrozenxid;
 
-		if (MultiXactIdPrecedes(classForm->relminmxid, newFrozenMulti))
-			newFrozenMulti = classForm->relminmxid;
+		if (MultiXactIdPrecedes(classForm->relminmxid, newMinMulti))
+			newMinMulti = classForm->relminmxid;
 	}
 
 	/* we're done with pg_class */
@@ -765,7 +765,7 @@ vac_update_datfrozenxid(void)
 	heap_close(relation, AccessShareLock);
 
 	Assert(TransactionIdIsNormal(newFrozenXid));
-	Assert(MultiXactIdIsValid(newFrozenMulti));
+	Assert(MultiXactIdIsValid(newMinMulti));
 
 	/* Now fetch the pg_database tuple we need to update. */
 	relation = heap_open(DatabaseRelationId, RowExclusiveLock);
@@ -787,9 +787,9 @@ vac_update_datfrozenxid(void)
 	}
 
 	/* ditto */
-	if (MultiXactIdPrecedes(dbform->datminmxid, newFrozenMulti))
+	if (MultiXactIdPrecedes(dbform->datminmxid, newMinMulti))
 	{
-		dbform->datminmxid = newFrozenMulti;
+		dbform->datminmxid = newMinMulti;
 		dirty = true;
 	}
 
@@ -805,7 +805,7 @@ vac_update_datfrozenxid(void)
 	 * this action will update that too.
 	 */
 	if (dirty || ForceTransactionIdLimitUpdate())
-		vac_truncate_clog(newFrozenXid, newFrozenMulti);
+		vac_truncate_clog(newFrozenXid, newMinMulti);
 }
 
 
@@ -824,19 +824,19 @@ vac_update_datfrozenxid(void)
  *		info is stale.
  */
 static void
-vac_truncate_clog(TransactionId frozenXID, MultiXactId frozenMulti)
+vac_truncate_clog(TransactionId frozenXID, MultiXactId minMulti)
 {
 	TransactionId myXID = GetCurrentTransactionId();
 	Relation	relation;
 	HeapScanDesc scan;
 	HeapTuple	tuple;
 	Oid			oldestxid_datoid;
-	Oid			oldestmulti_datoid;
+	Oid			minmulti_datoid;
 	bool		frozenAlreadyWrapped = false;
 
 	/* init oldest datoids to sync with my frozen values */
 	oldestxid_datoid = MyDatabaseId;
-	oldestmulti_datoid = MyDatabaseId;
+	minmulti_datoid = MyDatabaseId;
 
 	/*
 	 * Scan pg_database to compute the minimum datfrozenxid
@@ -869,10 +869,10 @@ vac_truncate_clog(TransactionId frozenXID, MultiXactId frozenMulti)
 			oldestxid_datoid = HeapTupleGetOid(tuple);
 		}
 
-		if (MultiXactIdPrecedes(dbform->datminmxid, frozenMulti))
+		if (MultiXactIdPrecedes(dbform->datminmxid, minMulti))
 		{
-			frozenMulti = dbform->datminmxid;
-			oldestmulti_datoid = HeapTupleGetOid(tuple);
+			minMulti = dbform->datminmxid;
+			minmulti_datoid = HeapTupleGetOid(tuple);
 		}
 	}
 
@@ -896,7 +896,7 @@ vac_truncate_clog(TransactionId frozenXID, MultiXactId frozenMulti)
 
 	/* Truncate CLOG and Multi to the oldest computed value */
 	TruncateCLOG(frozenXID);
-	TruncateMultiXact(frozenMulti);
+	TruncateMultiXact(minMulti);
 
 	/*
 	 * Update the wrap limit for GetNewTransactionId and creation of new
@@ -905,7 +905,7 @@ vac_truncate_clog(TransactionId frozenXID, MultiXactId frozenMulti)
 	 * signalling twice?
 	 */
 	SetTransactionIdLimit(frozenXID, oldestxid_datoid);
-	MultiXactAdvanceOldest(frozenMulti, oldestmulti_datoid);
+	MultiXactAdvanceOldest(minMulti, minmulti_datoid);
 }