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The "PigJournal" page has been changed by AlanGates. http://wiki.apache.org/pig/PigJournal?action=diff&rev1=3&rev2=4 -------------------------------------------------- '''Estimated Development Effort:''' depends on how much SQL we decide to implement - ==== Standard UDFs From Piggybank Need to be Moved to Pig ==== + ==== Standard UDFs Should Pig Provide ==== - There are a number of UDFs that might be considered standard, such as UPPER, LOWER, etc. in Piggybank that could be moved into Pig proper so that they are better tested + There are a number of UDFs in Piggybank that might be considered standard, such as UPPER, LOWER, etc. These could be moved into Pig proper so that they are better tested - and maintained. This is in the unknown approach section because there have been no discussions about which UDFs should move and to what extend Pig should go in - providing "standard" UDFs. That is, we could decide to include every conceivable string function, or we could just include basic ones such as upper, lower, and - substring and leave the rest to Piggybank. + and maintained. Also the Pig team should consider what additional UDFs should be added as standard. Categories for consideration + include string functions, math functions, statistics functions, date and time functions. We should also consider if there are + functions unique to Pig that we should add. For example, it has been suggested that Pig should have a !MakeTuple function that would + take existing fields and create a tuple. '''Category:''' Usability - '''Dependency:''' + '''Dependency:''' Date and time functions will depend on having a date and time type. '''References:'''
