diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml
index 515bcb6779..d67212b831 100644
--- a/doc/src/sgml/libpq.sgml
+++ b/doc/src/sgml/libpq.sgml
@@ -8440,7 +8440,7 @@ main(int argc, char **argv)
     /* Set always-secure search path, so malicous users can't take control. */
     res = PQexec(conn,
                  "SELECT pg_catalog.set_config('search_path', '', false)");
-    if (PQresultStatus(res) != PGRES_COMMAND_OK)
+    if (PQresultStatus(res) != PGRES_TUPLES_OK)
     {
         fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
         PQclear(res);
@@ -8610,7 +8610,7 @@ main(int argc, char **argv)
     /* Set always-secure search path, so malicous users can't take control. */
     res = PQexec(conn,
                  "SELECT pg_catalog.set_config('search_path', '', false)");
-    if (PQresultStatus(res) != PGRES_COMMAND_OK)
+    if (PQresultStatus(res) != PGRES_TUPLES_OK)
     {
         fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
         PQclear(res);
diff --git a/doc/src/sgml/lobj.sgml b/doc/src/sgml/lobj.sgml
index 771795ae66..f56aeebddb 100644
--- a/doc/src/sgml/lobj.sgml
+++ b/doc/src/sgml/lobj.sgml
@@ -936,7 +936,7 @@ main(int argc, char **argv)
     /* Set always-secure search path, so malicous users can't take control. */
     res = PQexec(conn,
                  "SELECT pg_catalog.set_config('search_path', '', false)");
-    if (PQresultStatus(res) != PGRES_COMMAND_OK)
+    if (PQresultStatus(res) != PGRES_TUPLES_OK)
     {
         fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
         PQclear(res);
diff --git a/src/test/examples/testlibpq.c b/src/test/examples/testlibpq.c
index 92a05e5309..d9c6c4587d 100644
--- a/src/test/examples/testlibpq.c
+++ b/src/test/examples/testlibpq.c
@@ -51,7 +51,7 @@ main(int argc, char **argv)
 	/* Set always-secure search path, so malicous users can't take control. */
 	res = PQexec(conn,
 				 "SELECT pg_catalog.set_config('search_path', '', false)");
-	if (PQresultStatus(res) != PGRES_COMMAND_OK)
+	if (PQresultStatus(res) != PGRES_TUPLES_OK)
 	{
 		fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
 		PQclear(res);
diff --git a/src/test/examples/testlibpq2.c b/src/test/examples/testlibpq2.c
index 76787fe010..62ecd68b55 100644
--- a/src/test/examples/testlibpq2.c
+++ b/src/test/examples/testlibpq2.c
@@ -80,7 +80,7 @@ main(int argc, char **argv)
 	/* Set always-secure search path, so malicous users can't take control. */
 	res = PQexec(conn,
 				 "SELECT pg_catalog.set_config('search_path', '', false)");
-	if (PQresultStatus(res) != PGRES_COMMAND_OK)
+	if (PQresultStatus(res) != PGRES_TUPLES_OK)
 	{
 		fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
 		PQclear(res);
diff --git a/src/test/examples/testlibpq4.c b/src/test/examples/testlibpq4.c
index a20f6249b4..6fcbdda2fa 100644
--- a/src/test/examples/testlibpq4.c
+++ b/src/test/examples/testlibpq4.c
@@ -37,7 +37,7 @@ check_prepare_conn(PGconn *conn, const char *dbName)
 	/* Set always-secure search path, so malicous users can't take control. */
 	res = PQexec(conn,
 				 "SELECT pg_catalog.set_config('search_path', '', false)");
-	if (PQresultStatus(res) != PGRES_COMMAND_OK)
+	if (PQresultStatus(res) != PGRES_TUPLES_OK)
 	{
 		fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
 		PQclear(res);
diff --git a/src/test/examples/testlo.c b/src/test/examples/testlo.c
index be5c72b9a6..8d8fb494f9 100644
--- a/src/test/examples/testlo.c
+++ b/src/test/examples/testlo.c
@@ -235,7 +235,7 @@ main(int argc, char **argv)
 	/* Set always-secure search path, so malicous users can't take control. */
 	res = PQexec(conn,
 				 "SELECT pg_catalog.set_config('search_path', '', false)");
-	if (PQresultStatus(res) != PGRES_COMMAND_OK)
+	if (PQresultStatus(res) != PGRES_TUPLES_OK)
 	{
 		fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
 		PQclear(res);
diff --git a/src/test/examples/testlo64.c b/src/test/examples/testlo64.c
index 39ba009c52..85da06a640 100644
--- a/src/test/examples/testlo64.c
+++ b/src/test/examples/testlo64.c
@@ -259,7 +259,7 @@ main(int argc, char **argv)
 	/* Set always-secure search path, so malicous users can't take control. */
 	res = PQexec(conn,
 				 "SELECT pg_catalog.set_config('search_path', '', false)");
-	if (PQresultStatus(res) != PGRES_COMMAND_OK)
+	if (PQresultStatus(res) != PGRES_TUPLES_OK)
 	{
 		fprintf(stderr, "SET failed: %s", PQerrorMessage(conn));
 		PQclear(res);