DOCS(readme): add example for filtering by key in datastore.

googleapis · Jul 31, 2014 · f2b26dc · f2b26dc
1 parent b0f469c
commit f2b26dc
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -172,6 +172,14 @@ var q = ds.createQuery('Company')
     .filter('size <', 400);
 ~~~~
 
+To filter by key, use `__key__` for the property name. Filtering on keys
+stored as properties is not currently supported.
+
+~~~~ js
+var q = ds.createQuery('Company')
+    .filter('__key__ =', ['Company', 'Google'])
+~~~~
+
 In order to filter by ancestors, use `hasAncestor` helper.
 
 ~~~ js