| From: | Ilia Evdokimov <ilya(dot)evdokimov(at)tantorlabs(dot)com> |
|---|---|
| To: | Zsolt Parragi <zsolt(dot)parragi(at)percona(dot)com>, David Geier <geidav(dot)pg(at)gmail(dot)com>, Chengpeng Yan <chengpeng_yan(at)outlook(dot)com>, Tatsuya Kawata <kawatatatsuya0913(at)gmail(dot)com> |
| Cc: | "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Hash-based MCV matching for large IN-lists |
| Date: | 2026-04-08 16:48:49 |
| Message-ID: | 0988b8e7-9242-4a13-9c1d-5b3ef9dd6b5d@tantorlabs.com |
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| Lists: | pgsql-hackers |
I rebased the previous patch after it was marked as "Need rebase"
I also initialized the 'elem_cost' array to all 'true' values to
simplify the code and avoid confusion, and rewrote
accum_scalararray_prob() to improve readability.
--
Best regards,
Ilia Evdokimov,
Tantor Labs LLC,
https://tantorlabs.com/
| Attachment | Content-Type | Size |
|---|---|---|
| v10-0001-Use-hash-based-MCV-matching-for-ScalarArrayOpExp.patch | text/x-patch | 19.4 KB |
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