update documentation

Author: kelvich

src/ddl.c

@@ -671,8 +671,8 @@ MtmProcessUtilitySender(PlannedStmt *pstmt, const char *queryString,
 		case T_LoadStmt:
 		case T_ClusterStmt:
 		case T_VariableShowStmt:
-		case T_ReassignOwnedStmt:
-		case T_LockStmt: // XXX: check whether we should replicate that
+		case T_ReassignOwnedStmt: // XXX?
+		case T_LockStmt:
 		case T_CheckPointStmt:
 		case T_ReindexStmt:
 		case T_AlterSystemStmt:

src/multimaster.c

@@ -417,6 +417,7 @@ _PG_init(void)
 		NULL
 	);
 
+	// XXX
 	DefineCustomIntVariable(
 		"multimaster.max_nodes",
 		"Maximal number of cluster nodes",
@@ -460,6 +461,7 @@ _PG_init(void)
 		NULL
 	);
 
+	// XXX
 	DefineCustomBoolVariable(
 		"multimaster.ignore_tables_without_pk",
 		"Do not replicate tables without primary key",
@@ -514,6 +516,7 @@ _PG_init(void)
 		NULL
 	);
 
+	// XXX
 	DefineCustomIntVariable(
 		"multimaster.queue_size",
 		"Multimaster queue size",