SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Identifier d32
    Identifier d64
    Identifier d128
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function generateRandom (children 1)
       ExpressionList (children 4)
        Literal \'d32 Decimal32(4), d64 Decimal64(8), d128 Decimal128(16)\'
        Literal UInt64_1
        Literal UInt64_10
        Literal UInt64_10
   Literal UInt64_10