psql: Improve tab completion for ALTER FOREIGN TABLE.

Etsuro Fujita

src/bin/psql/tab-complete.c

@@ -1128,7 +1128,9 @@ psql_completion(const char *text, int start, int end)
 			 pg_strcasecmp(prev2_wd, "TABLE") == 0)
 	{
 		static const char *const list_ALTER_FOREIGN_TABLE[] =
-		{"ALTER", "DROP", "RENAME", "OWNER TO", "SET SCHEMA", NULL};
+		{"ADD", "ALTER", "DISABLE TRIGGER", "DROP", "ENABLE", "INHERIT",
+		"NO INHERIT", "OPTIONS", "OWNER TO", "RENAME", "SET",
+		"VALIDATE CONSTRAINT", NULL};
 
 		COMPLETE_WITH_LIST(list_ALTER_FOREIGN_TABLE);
 	}