diff --git a/src/backend/commands/copyto.c b/src/backend/commands/copyto.c
index 99d65beac6b..24df3490827 100644
--- a/src/backend/commands/copyto.c
+++ b/src/backend/commands/copyto.c
@@ -400,6 +400,11 @@ BeginCopyTo(ParseState *pstate,
 							RelationGetRelationName(rel))));
 	}
 
+	/* Temporary and unlogged relations are inaccessible during recovery. */
+	if (rel != NULL && !RelationIsPermanent(rel) && RecoveryInProgress())
+		ereport(ERROR,
+				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+				 errmsg("cannot access temporary or unlogged relations during recovery")));
 
 	/* Allocate workspace and zero all fields */
 	cstate = (CopyToStateData *) palloc0(sizeof(CopyToStateData));
diff --git a/src/test/recovery/t/001_stream_rep.pl b/src/test/recovery/t/001_stream_rep.pl
index 2a1bc81506b..e3d2159345e 100644
--- a/src/test/recovery/t/001_stream_rep.pl
+++ b/src/test/recovery/t/001_stream_rep.pl
@@ -6,7 +6,7 @@ use strict;
 use warnings;
 use PostgresNode;
 use TestLib;
-use Test::More tests => 49;
+use Test::More tests => 50;
 
 # Initialize primary node
 my $node_primary = get_new_node('primary');
@@ -62,6 +62,20 @@ $result =
 print "standby 2: $result\n";
 is($result, qq(1002), 'check streamed content on standby 2');
 
+# Check that COPY TO rejects unlogged tables on standby
+$node_primary->safe_psql(
+	'postgres', q{
+CREATE UNLOGGED TABLE ultab (a int);
+});
+$node_primary->wait_for_catchup($node_standby_1, 'replay',
+	$node_primary->lsn('flush'));
+my ($copy_ret, $copy_stdout, $copy_stderr) =
+  $node_standby_1->psql('postgres', 'COPY ultab TO STDOUT');
+like(
+	$copy_stderr,
+	qr/cannot access temporary or unlogged relations during recovery/,
+	'COPY TO of unlogged table on standby 1');
+
 # Check that only READ-only queries can run on standbys
 is($node_standby_1->psql('postgres', 'INSERT INTO tab_int VALUES (1)'),
 	3, 'read-only queries on standby 1');