Hive User Defined Functions (UDFs) – Complete Guide to extend hive with custom functions (UDF, UDAF, UDTF)

By | February 19, 2017
Hive UDFs (User defined functions)
UDFs provide a way to extend HiveQL. UDFs are implemented in Java.
The jars are added to the session and and they work just like Hive built-in functions.

Hive defined 3 types of UDFs:

  1. UDFs
  2. UDAFs
  3. UDTFs

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