Re: Preserve attstattarget on REINDEX CONCURRENTLY

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