SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function toUInt8 (alias x) (children 1)
     ExpressionList (children 1)
      Identifier number
    Function roundDown (children 1)
     ExpressionList (children 2)
      Identifier x
      Function array (children 1)
       ExpressionList (children 4)
        Literal Float64_-1.5
        Function e (children 1)
         ExpressionList
        Function pi (children 1)
         ExpressionList
        Literal Float64_5.5
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_10