Hi,
On September 16, 2025 7:57:54 AM EDT, "Core Studios Inc." <corestudiosinc@gmail.com> wrote:
>Hello,
>
>We noticed a sustained increased in IO Wait of read queries after upgrading from 13.13 to 13.21. Eventually, we
narrowedit 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
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