Fix regression tests.

src/backend/distributed/commands/grant.c

@@ -13,14 +13,21 @@
 #include "catalog/namespace.h"
 #include "distributed/commands.h"
 #include "distributed/metadata_cache.h"
+#include "distributed/master_protocol.h"
 
 
 /* placeholder for PreprocessGrantStmt */
 List *
 PreprocessGrantStmt(Node *node, const char *queryString)
 {
+	GrantStmt *grantStmt = castNode(GrantStmt, node);
 	bool showPropagationWarning = false;
 
+	/* don't emit warnings in worker nodes */
+	if (!IsCoordinator())
+	{
+		return NIL;
+	}
 
 	if (grantStmt->targtype == ACL_TARGET_ALL_IN_SCHEMA)
 	{

src/test/regress/expected/multi_router_planner.out

@@ -2408,6 +2408,7 @@ CREATE USER router_user;
 NOTICE:  not propagating CREATE ROLE/USER commands to worker nodes
 HINT:  Connect to worker nodes directly to manually create all necessary users and roles.
 GRANT INSERT ON ALL TABLES IN SCHEMA public TO router_user;
+WARNING:  not propagating GRANT command to worker nodes
 \c - router_user - :master_port
 -- first test that it is marked invalid inside a transaction block
 -- we will fail to connect to worker 2, since the user does not exist

src/test/regress/expected/multi_schema_support.out

@@ -1240,6 +1240,9 @@ PL/pgSQL function run_command_on_coordinator_and_workers(text) line 3 at EXECUTE
 (1 row)
 
 SELECT run_command_on_coordinator_and_workers('GRANT ALL ON DATABASE postgres to "test-user"');
+WARNING:  not propagating GRANT command to worker nodes
+CONTEXT:  SQL statement "GRANT ALL ON DATABASE postgres to "test-user""
+PL/pgSQL function run_command_on_coordinator_and_workers(text) line 3 at EXECUTE
  run_command_on_coordinator_and_workers
 ---------------------------------------------------------------------
 

src/test/regress/expected/multi_transactional_drop_shards.out

@@ -689,6 +689,7 @@ CREATE USER try_drop_table WITH LOGIN;
 NOTICE:  not propagating CREATE ROLE/USER commands to worker nodes
 HINT:  Connect to worker nodes directly to manually create all necessary users and roles.
 GRANT ALL ON SCHEMA public TO try_drop_table;
+WARNING:  not propagating GRANT command to worker nodes
 SELECT run_command_on_workers('CREATE USER try_drop_table WITH LOGIN');
       run_command_on_workers
 ---------------------------------------------------------------------