| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: eval_const_expresisions and ScalarArrayOpExpr |
| Date: | 2017-09-12 13:29:36 |
| Message-ID: | 507.1505222976@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
I wrote:
> Looking at the patch, it still seems solid, but I remember that one
> thing I was concerned about was whether the more generalized code
> was any slower. Not sure about a good test case to measure that
> though --- const-simplification isn't a large chunk of most workloads.
This patch no longer applies cleanly on HEAD, so here's a rebased version
(no substantive changes). As before, I think the most useful review task
would be to quantify whether it makes planning noticeably slower.
regards, tom lane
| Attachment | Content-Type | Size |
|---|---|---|
| better-eval-const-expressions-2.patch | text/x-diff | 14.5 KB |
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