This ticket will handle implementing the validation that will check if the $group for min/max optimization can occur. The requirements for this optimization are...

1. bucketMaxSpanSeconds and bucketRoundingSeconds parameters have not been changed.
2. Given a predicate on timeField T, dateTrunc(T) matches the bucket boundaries. For example, if bucketMaxSpanSeconds is set to 60 seconds, then dateTrunc.unit converted to seconds multiplied by dateTrunc.binSize needs to be a multiple of bucketMaxSpanSeconds.
3. The $group _id field only refers to a combination of the metaField and dateTrunc(timeField).
4. The query does not use an extended range.

This ticket should also check that special timezones such as UTC +05:30 are gracefully handled.