Dent John wrote:
> Yes. That’s at least true if unnest(x) is used in the FROM. If it’s used in
> the SELECT, actually it can get the performance benefit right away
At a quick glance, I don't see it called in the select-list in any
of the regression tests. When trying it, it appears to crash (segfault):
postgres=# begin;
BEGIN
postgres=# declare c cursor for select oid::int as i, relname::text as r from
pg_class;
DECLARE CURSOR
postgres=# select unnest('c'::refcursor);
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
The build is configured with:
./configure --enable-debug --with-icu --with-perl --enable-depend
Best regards,
--
Daniel Vérité
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Twitter: @DanielVerite
