"qiumingcheng" <qiumingcheng@aliyun.com> writes:
> 2. What's the reason about the function timestamp_gt_timestampz may cause data leakage? Can you explain how it causes
dataleakage?
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