message: Transform alter table into an instance of RenameTableInfo.
diff: @@ -32,6 +32,25 @@ unique_ptr<AlterTableStatement> Transformer::TransformRename(PGNode *node) {
  info = make_unique<RenameColumnInfo>(schema, table, old_name, new_name);
  break;
  }
  + case PG_OBJECT_TABLE: {
  + // change table name
  +
  + // get the table and schema
  + string schema = DEFAULT_SCHEMA;
  + string table;
  + assert(stmt->relation->relname);
  + if (stmt->relation->relname) {
  + table = stmt->relation->relname;
  + }
  + if (stmt->relation->schemaname) {
  + schema = stmt->relation->schemaname;
  + }
  +// string old_name = stmt->subname;
  + string new_name = stmt->newname;
  + info = make_unique<RenameTableInfo>(schema, table, new_name);
  + break;
  + }
  +
  case PG_OBJECT_DATABASE:
  default:
  throw NotImplementedException("Schema element not supported yet!");
  