SelectWithUnionQuery (children 1) ExpressionList (children 1) SelectQuery (children 4) ExpressionList (children 1) Asterisk TablesInSelectQuery (children 1) TablesInSelectQueryElement (children 1) TableExpression (children 1) Function merge (children 1) ExpressionList (children 2) Function currentDatabase (children 1) ExpressionList Literal \'test_local_1|test_distributed_2\' Function in (children 1) ExpressionList (children 2) Identifier _table Literal Tuple_(\'test_local_1\', \'test_local_2\') ExpressionList (children 1) OrderByElement (children 1) Identifier value