Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop
От
Andres Freund
Тема
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop
Дата
Msg-id
20171128181459.d4pqmum2tjtrdwdd@alap3.anarazel.de
Ответ на
Список
Дерево обсуждения
BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infiniteloop tcook@blackducksoftware.com
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Thomas Munro <thomas.munro@enterprisedb.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Greg Stark <stark@mit.edu>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Stephen Frost <sfrost@snowman.net>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Andres Freund <andres@anarazel.de>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in an infinite loop Tom Lane <tgl@sss.pgh.pa.us>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Thomas Munro <thomas.munro@enterprisedb.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop Tomas Vondra <tomas.vondra@2ndquadrant.com>
Re: BUG #14932: SELECT DISTINCT val FROM table gets stuck in aninfinite loop "Todd A. Cook" <tcook@blackducksoftware.com>
Re: BUG #14891: Old cancel request presented by pgbouncer honoredafter skipping a query. Skarsol <postgresql@skarsol.com>
On 2017-11-28 09:55:13 -0500, Todd A. Cook wrote: > On 11/27/17 23:03, Tom Lane wrote: > > > > Note that the sample data has a lot of collisions: > > > > regression=# select hashint8(val), count(*) from reproducer group by 1 order by 2 desc; > > hashint8 | count > > -------------+------- > > 441526644 | 2337 > > -1117776826 | 1221 > > -1202007016 | 935 > > -2068831050 | 620 > > 1156644653 | 538 > > 553783815 | 510 > > 259780770 | 444 > > 371047036 | 394 > > 915722575 | 359 > > ... etc etc ... > > In case it matters, the complete data set will have some outlier values with 10k to 100k > collisions in this column. To make sure we're on the same page, this is data intentionally created to have a lot of hash collisions, is that right? Greetings, Andres Freund
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