On Tuesday, May 12, 2020, PG Bug reporting form <
noreply@postgresql.org> wrote:
The following bug has been logged on the website:
Bug reference: 16430
Logged by: Valentinas
Email address: val.janeiko@gmail.com
PostgreSQL version: 12.2
Operating system: Alpine (container)
Description:
When using Sequence inside a plpgsql function called using SELECT func()
using Npgsql library a sequence is incremented by the value specified in
CACHE.
That is a perfectly valid outcome per the meaning and documented usage of cache in the server.
Additionally if CACHE is set to > 80000 (e.g. 100000) the query always
returns 0.
Interesting...probably worth looking into even if a cache value that large doesn’t make much sense usually. Doing and posting some tests using just sql and psql would be a good start in isolating where the discrepancy lies.
David J.