Hadoop PIG Part III
- What is UDF (User Defined Function)?
- Steps for building and using UDF
User Defined Functions (UDF)
What is UDF?
- Pig provides extensive support for user defined functions (UDFs) as a way to specify custom processing
- UDF can be implemented in multiple languages
- You can customize all parts of the Pig processing including
- Data load/store
- Column transformation
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