SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toDateTime64 (children 1)
     ExpressionList (children 2)
      Function CAST (children 1)
       ExpressionList (children 2)
        Literal Array_[Array_[\'CLb5Ph \']]
        Literal \'String\'
      Function uniqHLL12 (children 1)
       ExpressionList (children 2)
        Literal \'2Gs1V\'
        Literal UInt64_752