Re: Recommended Training and Books for PostgreSql
- From: Mladen Gogala <gogala.mladen@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 18 Aug 2016 22:50:22 -0400
On 08/18/2016 04:28 PM, kyle Hailey wrote:
Thanks Michael.
Any recommendations for Postgres performance specifically?
This is probably the best book on the market:
https://www.amazon.com/PostgreSQL-High-Performance-Gregory-Smith-ebook/dp/B0057G9RUG
You will probably also be interested in this:
http://pghintplan.osdn.jp/pg_hint_plan.html
https://dbwhisperer.wordpress.com/2015/03/21/postgresql-hints-and-dbms_stats/
Postgres community has a famously negative attitude toward hints:
https://wiki.postgresql.org/wiki/OptimizerHintsDiscussion
You can even find comic texts like this:
http://it.toolbox.com/blogs/database-soup/why-postgresql-doesnt-have-query-hints-44121
BTW, I am the Oracle DBA mentioned in that text. I have a knack for
bringing out the best in people. I helped our good baker turned DB
architect to reach the apex of stupidity. Needless to say, the hints
are now available, but the official Postgres community doesn't want to
talk about them and still considers them as something not worthy of
being mentioned in polite society.
Postgres architecture is bad, it prevents it from performing well. The
problem is the fact that undo information is stored within the table
itself. What that means for a full table scan is not hard to imagine.
There is no parallelism of any kind and partitioning is a joke. It is
not possible to create a global index. The open source version of
Postgres is, in my humble opinion, just an engine for selling
EnterpriseDB, which does have hints. Problem with open source databases
is in the old adage, which is still valid: you get what you pay for.
They're simply not capable of replacing any of the big 3 commercial
databases.
I just started at Amazon RDS and one of my first tasks will be working
on performance monitoring for Postgres.
- Kyle
http://kylehailey.com
Oh you poor thing! I wish you the best of luck!
On Tue, Aug 2, 2016 at 7:07 PM, Vijay Sehgal <vijaysehgal21@xxxxxxxxx
<mailto:vijaysehgal21@xxxxxxxxx>> wrote:
Thanks for your help, Michael and Matthew.
Regards,
Vijay Sehgal
On Aug 1, 2016, at 7:34 PM, Michael Cunningham
<napacunningham@xxxxxxxxx <mailto:napacunningham@xxxxxxxxx>> wrote:
Here are some of what I have been using.
PostgreSQL Video Tutorials (30 videos)
This video series uses EnterpriseDB and does some things for you
automatically.
https://www.youtube.com/watch?v=CkjQSkWl0F0&list=PLFRIKEguV54bgwAcgFiOs5GMo3q2DhVDj
<https://www.youtube.com/watch?v=CkjQSkWl0F0&list=PLFRIKEguV54bgwAcgFiOs5GMo3q2DhVDj>
PostgreSQL Installation
I like this video because it does not use EnterpriseDB and you
get to learn a little more about the install.
https://www.youtube.com/watch?v=y2haO82SPd4
<https://www.youtube.com/watch?v=y2haO82SPd4>
PostgreSQL Docs
These docs are really well written in my opinion
https://www.postgresql.org/docs/9.5/static/index.html
<https://www.postgresql.org/docs/9.5/static/index.html>
Michael
On Mon, Aug 1, 2016 at 1:12 PM, vijayrsehgal
<vijaysehgal21@xxxxxxxxx <mailto:vijaysehgal21@xxxxxxxxx>> wrote:
Dear Experts,
Our Team has to build skills on PostgreSql, we have to help
developers and also take tasks of DBA. The team has worked
mostly only on Oracle.
I would appreciate if you could please point me to some books
and also trainings available either online or in-person, so
that our team can take this new learning forward.
Thanking you all for your help and time.
Kind Regards,
Vijay Sehgal
--
Michael Cunningham
--
Mladen Gogala
Oracle DBA
http://mgogala.freehostia.com
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