SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function multiIf (children 1)
     ExpressionList (children 5)
      Literal UInt64_1
      Function toFixedString (children 1)
       ExpressionList (children 2)
        Identifier col2
        Literal UInt64_16
      Literal UInt64_1
      Identifier col3
      Literal \'baz\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier multi_if_check