| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Should HashSetOp go away |
| Date: | 2025-10-31 19:22:27 |
| Message-ID: | 3858818.1761938547@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> Here's a pair of patches to try to do better. The first one
> is concerned with getting more realistic size estimates for
> TupleHashTables in the planner. The second is some mop-up
> that's been pending for a long time in the same area, namely
> getting rid of "long int" field types in Plan nodes.
Meh ... cfbot found a compiler warning that I'd not seen locally.
v2 attached silences that, and I twiddled a couple of comments.
regards, tom lane
| Attachment | Content-Type | Size |
|---|---|---|
| v2-0001-Improve-planner-s-estimates-of-tuple-hash-table-s.patch | text/x-diff | 18.3 KB |
| v2-0002-Change-long-numGroups-fields-to-be-Cardinality-i..patch | text/x-diff | 19.2 KB |
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