Postgres Pro
Downloads
Home   >   mailing lists

Re: How to practice on EXPLAIN/optimizing queries/constructing indices - Mailing list pgsql-novice

From Keith
Subject Re: How to practice on EXPLAIN/optimizing queries/constructing indices
Date
Msg-id CAHw75vsi=suDrGO1CgUsKA8D_nrhYthojcc2+iZ_3frBUyUy9g@mail.gmail.com
Whole thread Raw
In response to How to practice on EXPLAIN/optimizing queries/constructing indices  (Magnus Persson <magnus.e.persson@gmail.com>)
List pgsql-novice
Tree view
Frequent postgresql blogger, depesz, did a great series on understanding the query planner. It helped me a lot

http://www.depesz.com/?s=explaining+the+unexplainable


On Wed, Jul 9, 2014 at 4:24 PM, Magnus Persson <magnus.e.persson@gmail.com> wrote:
So I found https://wiki.postgresql.org/wiki/Using_EXPLAIN but still I feel there should be more to it.
What methods can I use to actually get better at spotting issues with a query? How can I go from looking at a fancy EXPLAIN graph produced by PgAdmin and realize what the problem is (if there is one)?




--
Sent via pgsql-novice mailing list (pgsql-novice@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-novice

pgsql-novice by date:

Previous
From: Magnus Persson
Date:
Subject: How to practice on EXPLAIN/optimizing queries/constructing indices
Next
From: Sergey Konoplev
Date:
Subject: Re: How to practice on EXPLAIN/optimizing queries/constructing indices