Thread: Table clustering -- useful, or not?

Table clustering -- useful, or not?

From
Josh Berkus
Date:
Folks:

On my projects, I haven't found PostgreSQL's implementation of clustered
indexes to be particularly useful ... gains of only a few percent in query
efficiency in exchange for a substantial management task.  Obviously, not
everyone has had the same experience, or we wouldn't still have the feature.

When I re-vamp my articles on indexing, I would like to include something
about clustered indexes.   Can people give me some examples of cases where
they have found clustered indexes to be useful, preferably with some
statistics?

--
-Josh Berkus
 Aglio Database Solutions
 San Francisco