On Tue, Jan 26, 2021 at 10:52 PM Jaime Casanova
<jcasa...@systemguards.com.ec> wrote:
> ${subject} happened while executing ${attached query} at regresssion
> database, using 14dev (commit
> d5a83d79c9f9b660a6a5a77afafe146d3c8c6f46) and produced ${attached
> stack trace}.I see the bug: gistprunepage() calls index_compute_xid_horizon_for_tuples() (which ultimately calls the heapam.c callback for heap_index_delete_tuples()) with an empty array, which we don't expect. The similar code within _hash_vacuum_one_page() already only calls index_compute_xid_horizon_for_tuples() when ndeletable > 0. The fix is obvious: Bring gistprunepage() in line with _hash_vacuum_one_page(). I'll go push a fix for that now. Thanks for the report! -- Peter Geoghegan
