Redshift UDF Harness
AWS Redshift recently announced support Python-based User Defined Functions. This repository contains SQL for many helpful Redshift UDFs, and the scripts for generating and testing those UDFs.
If you'd like to contribute more UDFs, please send us a pull request or contact us over at Periscope.io
The scripts require Ruby. To connect to your cluster to add or test UDFs, you'll need the
pg gem and the following vars in your env or in the config.yaml:
UDF_CLUSTER_HOST-- host of your Redshift cluster, e.g.
UDF_CLUSTER_PORT-- cluster's db port, e.g.
UDF_CLUSTER_DB_NAME-- database name, e.g.
UDF_CLUSTER_USER-- database user, e.g.
UDF_CLUSTER_PASSWORD-- database user's password
Running the main file
udf.rb without args shows how to use it:
Usage: ruby udf.rb <action> [udf_name] Actions: load Loads UDFs into your database drop Removes UDFs from your database test Runs UDF unit tests on your database print Pretty-print SQL for making the UDFs Examples: ruby udf.rb load ruby udf.rb drop harmonic_mean ruby udf.rb test json_array_first ruby udf.rb print
We look forward to bug reports, UDF requests, and general feedback :)