No exact match for RANGE query for a specific time
Elasticsearch uses Joda-Time for parsing dates. And your problem is that Joda-Time only stores date/time values down to the millisecond.
From the docs:
The library internally uses a millisecond instant which is identical to the JDK and similar to other common time representations. This makes interoperability easy, and Joda-Time comes with out-of-the-box JDK interoperability.
This means that the last 3 digits of the seconds are not taken into account when parsing the date.
2017-11-30T13:23:23.063612+11:002017-11-30T13:23:23.063657+11:002017-11-30T13:23:23.063722+11:00
Are all interpreted as:2017-11-30T13:23:23.063+11:00
And the corresponding epoch time is 1512008603063 for all these values.
You can see this too by adding explain to the query like this:
{ "query": { "range" : { "time" : { "gte": "2017-11-30T13:23:23.063657+11:00", "lte": "2017-11-30T13:23:23.063657+11:00" } } }, "explain": true}That is basically the reason all those documents match your query.