> It's capable of throwing an error (see timestamp2timestamptz_opt_overflow).
Yes, It's capable of throwing an error(timestamp out of range) , but the
message "timestamp out of range" is not sensitive information. Only from this
function(timestamp_gt_timestamptz), can it be marked as leakproof?
------------------------------------------------------------------
发件人：Tom Lane <[email protected]>
发送时间：2022年10月17日(星期一) 22:07
收件人：qiumingcheng <[email protected]>
抄 送：Laurenz Albe <[email protected]>; Julien Rouhaud
<[email protected]>; pgsql-general <[email protected]>;
yuexingzhi <[email protected]>
主 题：Re: 回复：回复：回复：A question about leakproof
"qiumingcheng" <[email protected]> writes:
> 2. What's the reason about the function timestamp_gt_timestampz may cause
> data leakage? Can you explain how it causes data leakage?
It's capable of throwing an error (see
timestamp2timestamptz_opt_overflow). Now, maybe that's unreachable, or
maybe we could rerrange things to remove it. But there's still enough
code underneath the timezone conversion requirement that I'd be very
hesitant to apply a leakproof marking. In short: it might be leakproof
in practice, but we don't wish to offer a guarantee.
regards, tom lane
