gnilrets

{% macro trange_join(left_model, row_key_left, right_model, row_key_right, merge_key, series_key, from_at, to_at) %}

-- Assumptions:
--  Within a series key, there can be no overlapping ranges.
--  Overlaping ranges must be resolved prior to using this macro.
--  The row key represents a set of attributes from a model.  It is typically a hash of those
--   attributes.  The user is expected to join the results of this macro back to the
--   original data to get the full attribute set.