> On 19 Jul 2026, at 11:05, Andrey Borodin <[email protected]> wrote:
>
> I'll follow up with the bulkwrite and checkpointer patches next.
Hi!
I looked through 0007-0009 and did not find correctness issues.
The existing COPY test uses an unlogged relation, so it does not
exercise the WAL eligibility checks in
PrepareOrRejectEagerFlushBuffer(). I tried the same test with a regular
table and it consistently combined writes.
For deterministic results I used wal_writer_delay = '10ms'. With
synchronous_commit disabled, a fast COPY may otherwise finish before the
default 200ms WAL writer interval. fsync can remain disabled: the test
only needs the PostgreSQL WAL flush position to advance.
Perhaps the test could run the COPY case for both unlogged and regular
tables.
Best regards, Andrey Borodin.
