Is there a way to migrate a bunch of fields in our indices from names that have dots in them (e.g., "http.responseCode") to nested objects?
I'd like to upgrade our ES 1.6 cluster to ES 2.0, but in letting the Migration Checker plugin do its thing, it turns out we have an issue with dots in the field names in nearly all our indices. (It looks like one of our Java logging libraries happily included dots in the field names of data it sends to Logstash and thus through to ES, rather than nesting the data structure — so we have field names like "http.responseCode" and "db.queryTime".)
Is there some way to easily fix this in our indices? I've hunted and hunted for pre-existing solutions, to no avail — and dots in field names is one of the issues that absolutely prevents an ES 2.0 upgrade.
Thanks in advance.