docs: private static DimFilter buildTimeFloorFilter(
        final String column,
        final Granularity granularity,
        final SqlKind operatorKind,
        final long rhsMillis
    )
    {
      final BoundRefKey boundRefKey = new BoundRefKey(column, null, StringComparators.NUMERIC);
      final Interval rhsInterval = granularity.bucket(DateTimes.utc(rhsMillis));
  
      // Is rhs aligned on granularity boundaries?
      final boolean rhsAligned = rhsInterval.getStartMillis() == rhsMillis;
  
      return getBoundTimeDimFilter(operatorKind, boundRefKey, rhsInterval, rhsAligned);
    }