SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Literal Array_[UInt64_1, UInt64_2, UInt64_3] (alias arr)
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier arr
      Identifier id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier array_element_test