Add timezone setting for query_string

[ppf2]

The timezone addition to DSL for range query/filter is great ! (#7113). The Lucene standard query parser appears to support setTimeZone so maybe there is a way for us to expose that as an option when using query_string?

[ppf2]

Actually looks like we can specify timezone offset directly in the query_string:
start_date:[* TO 2014-09-22T23:59:59+02:00]

[dadoonet]

Still, I think that end user need in that case to know this syntax and that all dates has been entered previously with this timezone.

I think it might be a good option that the developer set the timezone in the query, so user only need to think about dates and enter in its interface something like date:[* TO 2014] and that's it.

Behind the scene, it will end up with a query like:

{
"query": {
  "query_string": {
    "text": "date:[* TO 2014]",
    "timezone": "GMT+1"
  } 
 }
}

[ppf2]

Agreed :) having a separate timezone option will also provide consistency with the DSL implementation.

[fterrier]

+1 here, we would like to get the ES clients to use date:[* TO 2014-10-01] without having to worry about any timezone.