Re: IoT/sensor data and B-Tree page splits

From: Arcadiy Ivanov <arcadiy(at)gmail(dot)com>
To: Peter Geoghegan <pg(at)bowt(dot)ie>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: IoT/sensor data and B-Tree page splits
Date: 2019-08-26 23:59:49
Message-ID: 750555c1-a170-46b3-4dab-5a89f8998f67@gmail.com
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On 8/26/19 7:49 PM, Peter Geoghegan wrote:
> Not surprising, since the TPC-E benchmark models a financial trading
> application.

> The good news there is that that will almost certainly be a lot better
> in Postgres 12. TPC-E also has a number of very low cardinality
> indexes, despite being an OLTP benchmark.

But apart from TPC-E and having to perform to it, is there any practical
real world usefulness in trying to have a B-tree index on TS-based data
just to have a PK on it, as opposed to having a BRIN on a TS field and
calling it a day?

--
Arcadiy Ivanov
arcadiy(at)gmail(dot)com | @arcivanov | https://ivanov.biz
https://github.com/arcivanov

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