X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;ds=sidebyside;f=README;fp=README;h=14d7b0e48adcf346e0d52d1b3c67ca47814e40f5;hb=4749b3ea80a808a981d2bcd8b85278b4c9160bb0;hp=0b3ea6becd216d51cad4b022de1bcca3fdac5c0d;hpb=97cfbe8bcd3fceea77f36dd78e0948c95e4ee0f7;p=MojoFacets.git

diff --git a/README b/README
index 0b3ea6b..14d7b0e 100644
--- a/README
+++ b/README
@@ -58,6 +58,10 @@ element from your dataset.
 If you want to create or update values, you will have to use $update hash to set
 new values.
 
+If you want to report something from your dataset (also called reduce in map/reduce
+terminology) you can use $out hash to store values which will be used to generate
+new dataset using $key and $value for column names.
+
 All values are repetable, but if you create just a scalar, magic(tm) inside MojoFacets
 will try to upgrade it to [ $scalar ] so you don't have to do it explicitly.