SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Literal Float64_nan (alias lhs)
    Function CAST (alias rhs) (children 1)
     ExpressionList (children 2)
      Literal Float64_nan
      Literal \'Float32\'
    Function notEquals (children 1)
     ExpressionList (children 2)
      Identifier lhs
      Identifier rhs
    Function notEquals (children 1)
     ExpressionList (children 2)
      Identifier lhs
      Function materialize (children 1)
       ExpressionList (children 1)
        Identifier rhs
    Function notEquals (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Identifier lhs
      Identifier rhs
    Function notEquals (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Identifier lhs
      Function materialize (children 1)
       ExpressionList (children 1)
        Identifier rhs
