Josh Levy created PIG-2705: ------------------------------ Summary: outputSchema modification from scripting UDFs Key: PIG-2705 URL: https://issues.apache.org/jira/browse/PIG-2705 Project: Pig Issue Type: Improvement Affects Versions: 0.10.0, 0.9.2 Reporter: Josh Levy
The examples for @schemaFunction that I've seen on the web (http://pig.apache.org/docs/r0.10.0/udf.html#decorators) tend to be trivial ones that return the same schema passed in. I had a problem where I wrote a python udf that added a new field into a tuple in a bag. I ended up not specifying schema in python and then casting in pig. How does the community feel about making it easier to generate a dynamic schema from a scripting UDF? This could be done by modifying JythonFunction.outputSchema to handle outputSchemaFunc returning a string like @outputSchema does, or by exposing a public api that makes it easier to manipulate org.apache.pig.impl.logicalLayer.schema.Schema -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira