| From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
|---|---|
| To: | tuomas(dot)leikola(at)gmail(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: BUG #16111: Unexpected query compilation error “negative bitmapset member not allowed” |
| Date: | 2019-11-13 13:41:14 |
| Message-ID: | 20191113134114.rxcli5c6zjmryvf6@development |
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| Lists: | pgsql-bugs |
On Wed, Nov 13, 2019 at 10:42:32AM +0000, PG Bug reporting form wrote:
>The following bug has been logged on the website:
>
>Bug reference: 16111
>Logged by: Tuomas Leikola
>Email address: tuomas(dot)leikola(at)gmail(dot)com
>PostgreSQL version: 12.0
>Operating system: windows, linux
>Description:
>
>I’ve been trying to cook up some kind of online reorganizer, which requires
>looking at rows’ physical locations and rearranging those that are
>suboptimal. In this endeavor, I stumbled on what appears to be a compiler
>bug introduced with multivariate statistics.
>
Yeah, this is a bug in estimate_multivariate_ndistinct, which fails to
ignore system attributes :-(
The attached patch fixes it, but unfortunatly we've missed this round of
minor releases :-( I'll get it pushed in a couple of days.
Thanks for the report and the reproducer, very helpful!
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
| Attachment | Content-Type | Size |
|---|---|---|
| estimate_multivariate_ndistinct.patch | text/plain | 902 bytes |
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