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For 2., you can also implement the Sum or Avg as Database views or stored procedure (for more complex queries), which then offloads the processing to the DB and then the Connection will see the view in the list of Entities available.
1.By default it sorts only by ascending order. There is no mechanism available currently to specify sort by descending order . This is an enhancement in our roadmap. Filterclause could be an option to filter by timestamp or field values . Example usage can be referred in link below
2.Aggregate functions are not available in this connector. It is in roadmap . Data mapper has inbuilt functions as max, sum which can be performed over an array object.
https://cloud.google.com/application-integration/docs/data-mapping-functions-reference#size-function
For 2., you can also implement the Sum or Avg as Database views or stored procedure (for more complex queries), which then offloads the processing to the DB and then the Connection will see the view in the list of Entities available.
Thank you, I already did as you suggest