I'm trying to get my head wrapped around how timezones are used within a
date_histogram facet, I think I'm slightly confused!
Right now I have ~1mil docs with a timestamp field, each one stored with a
+2:00 timezone. I limit a query with a date range also specifying the
timezone as follows:
However, if I specify date ranges set in -07:00 timezone things things get
a little confusing.
Consider it is 2012-08-04 22:00+00:00 right now.
If I set "time_zone" in the date_histogram facet to -07:00, the date
buckets returned are missing everything within 2012-08-04 when actually
there should be thousands - 15 hours worth.
Trying to read the timezone docs on the guide (
are the times returned actually in UTC despite the time_zone setting? If
this is the case, then it would make sense that I would need to set the
post_zone setting also to -07:00. However this pushes the times back as
expected making things look worse.
Should I need to set post_zone? If so, what to?
And as a side question, can you pass anything to post_zone and ES simply
adjusts the times returned while keeping the bucket counts the same? This
seems odd.. if I've understood it correctly.