Apache Druid

This represents the UTC date time value for epoch `Long.MAX_VALUE` in java (9223372036854775807). Druid by default uses an `ETERNITY` time interval filter on the queries which corresponds to `[Long.MIN_VALUE, Long.MAX_VALUE]` epoch range.

One clarification, the epoch values are actually `Long.MAX_VALUE / 2` and `Long.MIN_VALUE / 2` instead of `Long.MAX_VALUE` and `Long.MIN_VALUE`
It is so because the interval duration is needed to be storable in a java long - (`Long.MAX_VALUE - Long.MIN_VAUE` can't come in a java long but `Long.MAX_VALUE / 2 - Long.MIN_VALUE / 2` ) can

Thank you <@U031A2GTWEM> for a very comprehensive answer!