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The following page has been changed by OlgaN: http://wiki.apache.org/pig/UDFManual ------------------------------------------------------------------------------ Pig comes with a set of builtin in functions. (NEED LINK) Two main properties differentiate builtin functions from UDFs. First, they don't need to be registered because Pig knows where they are. Second, they don't need to be qualified when used because Pig knows where to find them. - In addition to builtins, Pig hosts a UDF repository called `piggybank` that allows users to share UDFs that they have written. The details are described in http://wiki.apache.org/pig/PiggyBank][PiggyBank. + In addition to builtins, Pig hosts a UDF repository called `piggybank` that allows users to share UDFs that they have written. The details are described in [http://wiki.apache.org/pig/PiggyBank PiggyBank]. [[Anchor(Advanced_Topics)]] == Advanced Topics ==
