User-defined aggregate (UDA) overview

Users can create user-defined aggregate (UDAs) that use custom logic to manipulate stored data across rows of data, returning a result that is further manipulated by a final function. Retrieving results using standard aggregate functions are also available for queries.

Creating a user-defined aggregate function (UDA)

User-Defined Aggregates (UDAs) can be used to manipulate stored data across rows of data, returning a result that is further manipulated by a final function.

Checking a user-defined aggregate (UDA)

Check existence of UDA.

Dropping a user-defined aggregate (UDA)

Use the DROP AGGREGATE command to drop a UDA.

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