Hello!
On 24-01-2018 23:36, Andres Freund wrote:
On 2018-01-24 15:10:56 -0500, Tom Lane wrote:
...
Keeping the stored value of a CachedExpr in a Param slot is an
interesting idea indeed.
We keep coming back to this, IIRC we had a pretty similar discussion
around redesigning caseValue_datum/isNull domainValue_datum/isNull to
be
less ugly. There also was
https://www.postgresql.org/message-id/20171116182208.kcvf75nfaldv3...@alap3.anarazel.de
where we discussed using something similar to PARAM_EXEC Param nodes to
allow inlining of volatile functions.
ISTM, there might be some value to consider all of them in the design
of
the new mechanism.
Thank you both very much for this discussion and for the link on that
thread! Now I'm working on the patch, thanks to Tom Lane's comments
earlier [1], and I'll try to implement something of this..
[1]
https://www.postgresql.org/message-id/403e0ae329c6868b3f3467eac92cc04d%40postgrespro.ru
--
Marina Polyakova
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
