elasticsearch/elasticsearch — pull request #7277 by konradkonrad (2014-08-14 10:24:28+00:00)
Title: Remove the 'Factor' paragraph to reflect #6490

The current implementation of 'date_histogram' does not understand
the `factor` parameter. Since the docs shouldn't raise false hopes,
I removed the section.

SN: I wonder, wether the parameter was intentionally left out
in anticipation of #6599 ?