elasticsearch/elasticsearch — pull request #6708 by colings86 (2014-07-03 11:47:05+00:00)
Title: Aggregations: Aggregation names can now include dot

Aggregation name are now able to use any character except '[', ']', and '>'. Dot syntax may still be used to reference values (e.g. in the order field) but may only reference the value directly beneath the last aggregation in the list. more complex structures will need to be accessed using the aggname[value] syntax

Closes #6702