As a user I would like to use CSVInputFormat to handle the CSV files following this RFC http://www.ietf.org/rfc/rfc4180.txt.
Many developers use Apache StringEscapeUtils.escapeCsv( ) method to escape their CSVs. The method escapes the CSV following the RFC4180.
The CSVLineReader throws exception in such a case. We can enhance the code to support the CSVs that use escape same as the quote characters.
I would appreciate a comment, if someone has knowingly rejected the idea due to some technical limitation or a problem with allowing escape and quote as same characters. By the way Apache HAWQ seem to get around this issue somehow and reads such CSVs alright.