Update doc on having same aggregation definition in multiple siddhi apps
@@ -1886,6 +1886,9 @@ The above syntax includes the following:
!!! Note
From V4.2.0 onwards, aggregation is carried out at calendar start times for each granularity with the GMT timezone
+!!! Note
+ From V4.2.6 onwards, the same aggregation can be defined in multiple Siddhi apps for joining, however, *only one siddhi app should carry out the processing* (i.e. the aggregation input stream should only feed events to one aggregation definition).
+
**Example**
This Siddhi Application defines an aggregation named `TradeAggregation` to calculate the average and sum for the `price` attribute of events arriving at the `TradeStream` stream. These aggregates are calculated per every time granularity in the second-year range.
