Le vendredi 5 février 2021, 03:17:48 CET Michael Paquier a écrit :
> ConstructTupleDescriptor() does not matter much, but this patch is not
> acceptable to me as it touches the area of the index creation while
> statistics on an index expression can only be changed with a special
> flavor of ALTER INDEX with column numbers. This would imply an ABI
> breakage, so it cannot be backpatched as-is.
I'm not surprised by this answer, the good news is it's being back-patched.
>
> Let's copy this data in index_concurrently_swap() instead. The
> attached patch does that, and adds a test cheaper than what was
> proposed. There is a minor release planned for next week, so I may be
> better to wait after that so as we have enough time to agree on a
> solution.
Looks good to me ! Thank you.
--
Ronan Dunklau