mariadb-columnstore-engine/utils/udfsdk/docs/source/reference/UDAFMap.rst

UDAFMap

UDAFMap holds a mapping from the function name to its implementation. The engine uses the map when a UDA(n)F is called by a SQL statement.

You must enter your function into the map. This means you must:

• #include your header file
• add an entry into UDAFMap::getMap().

The map is fully populated the first time it is called, i.e., the first time any UDA(n)F is called by a SQL statement.

The need for you to manually enter your function into this map may be alleviated by future enhancements.