On Wed, Sep 17, 2025 at 12:23 PM Tomas Vondra <to...@vondra.me> wrote: > Look at the BRIN code, for example. Most of the parallel stuff happens > in _brin_begin_parallel. Maybe more of it could be generalized a bit > more (some of the shmem setup?). But most of it is tied to the > AM-specific state / how parallel builds work for that particular AM.
Well, the code for PARALLEL_KEY_WAL_USAGE, PARALLEL_KEY_BUFFER_USAGE, and PARALLEL_KEY_QUERY_TEXT is duplicated, for instance. That's not a ton of code, perhaps, but it may evolve over time, and having to keep copies for a bunch of different AMs in sync is not ideal. -- Robert Haas EDB: http://www.enterprisedb.com
