Handle enclosing characters in delimited fields

People have requested in the past to have Hive support enclosing characters in delimited row format.

An example of such data:

"1", "123456", " ", "Charlotte, NC" 

The format of the create table statement may look like:

DELIMITED [FIELDS TERMINATED BY char] [COLLECTION ITEMS TERMINATED BY char] [FIELDS ENCLOSED BY char]

The first pass solution to this JIRA may disallow inclusion of enclosing characters within the data. A latter improvement could be to allow escaping of enclosing characters within the data.

Reference mailing list thread:
http://mail-archives.apache.org/mod_mbox/hive-user/201204.mbox/%3CCAENxBwwrZrqBSJXtJHpqc_FfcZvwRMoaT9W7dR=JGtYJoXPqLw@mail.gmail.com%3E