Re: Showing primitive index scan count in EXPLAIN ANALYZE (for skip scan and SAOP scans) - Mailing list pgsql-hackers

On Thu, Mar 6, 2025 at 1:17 PM Peter Geoghegan <pg@bowt.ie> wrote:
> The immediate problem is that when the parallel leader doesn't
> participate, there is no valid IndexScanDescData in planstate to work
> off of. There isn't an obvious way to get to shared memory from the
> leader process, since that all goes through the
> IndexScanDescData.parallel_scan -- there is nothing that points to
> shared memory in any of the relevant planstate structs (namely
> IndexScanState, IndexOnlyScanState, and BitmapIndexScanState). I was
> hoping that you'd be able to provide some guidance on how best to fix
> this.

Hmm, it seems weird that you can't get a hold of that structure to me.
Why can't you just go find it in the DSM?

--
Robert Haas
EDB: http://www.enterprisedb.com