From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
---|---|
To: | Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: integration bloat tables (indexes) to core |
Date: | 2016-06-16 19:10:41 |
Message-ID: | CAFj8pRBvyrA_-i56rqw2YTTv+fuVZWLVVg4e1NUGseFi5W8xkA@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
2016-06-16 20:31 GMT+02:00 Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>:
> On 6/13/16 12:16 PM, Tom Lane wrote:
>
>> At the same time, I'm pretty suspicious of putting stuff like this in
>> core, because the expectations for cross-version compatibility go up
>> by orders of magnitude as soon as we do that.
>>
>
> On a first go-round, I don't think we should add entire views, but rather
> functions that serve specific purposes. For table bloat that means a
> function that returns what the heap size should be based on pg_stats. For
> locking, it means providing information about which PID is blocking which
> PID. After that, most everything else is just window dressing.
>
could be
if you look on current bloating queries, then you can see pretty complex
queries due implementation on high level. C implementation should be more
faster. There are lot of changes in core, but these queries is working for
PostgreSQL 8.2 to today, so they are relatively stable.
Regards
Pavel
> --
> Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
> Experts in Analytics, Data Architecture and PostgreSQL
> Data in Trouble? Get it in Treble! http://BlueTreble.com
> 855-TREBLE2 (855-873-2532) mobile: 512-569-9461
>
From | Date | Subject | |
---|---|---|---|
Next Message | Vik Fearing | 2016-06-16 20:31:02 | Re: proposal: integration bloat tables (indexes) to core |
Previous Message | Andres Freund | 2016-06-16 19:01:34 | Re: [HACKERS] Re: pgsql: Avoid extra locks in GetSnapshotData if old_snapshot_threshold < |