Re: Postgres Internals - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Postgres Internals
Date
Msg-id 200106210100.f5L10x628196@candle.pha.pa.us
Whole thread Raw
In response to Postgres Internals  (Dip <dds98@doc.ic.ac.uk>)
List 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@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
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