From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Dip <dds98(at)doc(dot)ic(dot)ac(dot)uk> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Postgres Internals |
Date: | 2001-06-21 01:00:59 |
Message-ID: | 200106210100.f5L10x628196@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-hackers |
> Hi All,
>
> Im running some benchmarking tests on mysql, postgres and interbase
> database servers.
>
> does anyone know the reasons why or know where i can find out some
> technical reasons why the postgres database server is particularly good
> in relation to the others or just by itself e.g. use of query
> optimisation or indexing etc. I'm only looking at creates, selects,
> inserts, update and delete statements. I've noticed it is slow at
> inserting data into tables, but especially quick at doing complex
> selects (i.e. containing many joins). Why is this so?
Our optimizer is very good compared to MySQL. Not sure about Interbase.
We even have GEQO for joins of >10 tables.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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