diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index ad663c94d7..bb610357c3 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -30197,7 +30197,8 @@ DETAIL:  Make sure pg_wal_replay_wait() isn't called within a transaction with a
         </para>
         <para>
          The value of <structfield>relpages</structfield> must be greater than
-         or equal to <literal>-1</literal>,
+         or equal to <literal>-1</literal> for partitioned table otherwise
+         greater then or equal to <literal>0</literal>,
          <structfield>reltuples</structfield> must be greater than or equal to
          <literal>-1.0</literal>, and <structfield>relallvisible</structfield>
          must be greater than or equal to <literal>0</literal>.
diff --git a/src/backend/statistics/relation_stats.c b/src/backend/statistics/relation_stats.c
index 1a6d1640c3..5ad3368463 100644
--- a/src/backend/statistics/relation_stats.c
+++ b/src/backend/statistics/relation_stats.c
@@ -98,17 +98,21 @@ relation_statistics_update(FunctionCallInfo fcinfo, int elevel)
 	if (!PG_ARGISNULL(RELPAGES_ARG))
 	{
 		int32		relpages = PG_GETARG_INT32(RELPAGES_ARG);
+		int32		minpages = 0;
 
 		/*
 		 * Partitioned tables may have relpages=-1. Note: for relations with
 		 * no storage, relpages=-1 is not used consistently, but must be
 		 * supported here.
 		 */
-		if (relpages < -1)
+		if (pgcform->relkind == RELKIND_PARTITIONED_TABLE)
+			minpages = -1;
+
+		if (relpages < minpages)
 		{
 			ereport(elevel,
 					(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
-					 errmsg("relpages cannot be < -1")));
+					 errmsg("relpages cannot be < %d", minpages)));
 			table_close(crel, RowExclusiveLock);
 			return false;
 		}