How to add my own operators, functions, aggregates?



Are there any documents for developing self-created operators, functions, aggregates?

Huiqun Zhou


For user defined functions, check out the example in the source directory ‘examples/more_math.cpp’. For a more recent example, you can also look at the paradigm4/github example dcast in load_tools on github: … ctions.cpp

For user defined operators, check out the directory in the source code examples/example_udos. Start with README. For a more recent example, look at chunk_unique on github.

For user defined aggregates, a search of the forum has lead me to the following post:

I am not sure if the api for udas have changed. Perhaps someone from paradigm4 could update us?