Hi, On September 16, 2025 7:57:54 AM EDT, "Core Studios Inc." <[email protected]> wrote: >Hello, > >We noticed a sustained increased in IO Wait of read queries after upgrading >from 13.13 to 13.21. Eventually, we narrowed it down to a spike in >index_blocks_read of a certain table where Bitmap Heap Scans do happen. > >Do you think that this change (i.e. removing the optimization) could be what >caused this regression?
You're not providing enough details for us to answer that question. We'd need an explain verbose for the query. Greetings, Andres -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
