Improve read_stream.c's fast path. The "fast path" for well cached scans that don't do any I/O was accidentally coded in a way that could only be triggered by pg_prewarm's usage pattern, which starts out with a higher distance because of the flags it passes in. We want it to work for streaming sequential scans too, once that patch is committed. Adjust.
Reviewed-by: Melanie Plageman <melanieplage...@gmail.com> Discussion: https://postgr.es/m/CA%2BhUKGKXZALJ%3D6aArUsXRJzBm%3Dqvc4AWp7%3DiJNXJQqpbRLnD_w%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/aa1e8c206454d666ab600050022aef2c3c390f69 Modified Files -------------- src/backend/storage/aio/read_stream.c | 75 +++++++++++++++-------------------- 1 file changed, 31 insertions(+), 44 deletions(-)
