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The "PigJournal" page has been changed by AlanGates. http://wiki.apache.org/pig/PigJournal?action=diff&rev1=2&rev2=3 -------------------------------------------------- '''Estimated Development Effort:''' depends on how much SQL we decide to implement + ==== Standard UDFs From Piggybank Need to be Moved to Pig ==== + 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 + 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. + + '''Category:''' Usability + + '''Dependency:''' + + '''References:''' + + '''Estimated Development Effort:''' small to medium, depending on how many UDFs are moved and written + ==== Standardize on Parser and Scanner Technology ==== Currently Pig Latin and grunt use Javacc for parsing and scanning. The SQL implementation uses Jflex for scanning and Cup for parsing. Javacc has proven to be difficult to work with, very poorly documented, and gives users horrible, barely understandable error messages. Pig needs to select parsing and scanning
