openstack/deb-python-sqlalchemy-utils
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Update agg docs

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Konsta Vesterinen
2014-01-23 09:49:24 +02:00
parent 9e067b8f53
commit 9a741aa146
1 changed files with 3 additions and 1 deletions
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4
sqlalchemy_utils/aggregates.py
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@@ -84,6 +84,9 @@ Simple aggregates
Custom aggregate expressions
----------------------------
Aggregate expression can be virtually any SQL expression not just a simple function taking one parameter. You can try things such as subqueries and different kinds of functions.
In the following example we have a Catalog of products where each catalog knows the net worth of its products.
::
@@ -294,7 +297,6 @@ Average movie rating
TODO
----
* Support calculation of many-to-many aggregates
* Special consideration should be given to `deadlocks`_.