Assertion: defined function | /r/HasProperty | udf
Facets:
Source sentences:
text: A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment.
text: Apache Hive defines, in addition to the regular user defined functions (UDF), also user defined aggregate functions (UDAF) and table-generating functions (UDTF).