Hi Zheng, Is my interpretation about SerDes correct -- "I'm assuming the SerDe stands for Serialization-Deserialization, and is used for importing input files which are not in an standard format."
Do I need SerDes to import an access log in the following format: ip_address "-" apache_uid [dd/MMM/yyyy:HH:mm:ss +0530] "GET /location HTTP/1.1" response_code response_size "referrer" "user_agent_string" "cookies" If possible, please could you let me know the exact CREATE TABLE and LOAD DATA commands that I need to use to load this log file without using SerDes. Thanks, Saurabh. On Mon, Jul 13, 2009 at 2:35 PM, Zheng Shao <[email protected]> wrote: > Hi Saurabh, > > In most cases, you won't need to know about SerDe. > > We are writing a how-to for adding new SerDes. Before that, you might > want to take a look at the code > serde/src/org/apache/hadoop/hive/serde2 if really interested. > > > Zheng > > On Mon, Jul 13, 2009 at 1:26 AM, Saurabh Nanda<[email protected]> > wrote: > > Hi, > > > > The DDL page in the Hive Language Manual > > (http://wiki.apache.org/hadoop/Hive/LanguageManual/DDL) refers to SerDe > > (http://wiki.apache.org/hadoop/SerDe), but the page is non-existent. I'm > > assuming the SerDe stands for Serialization-Deserialization, and is used > for > > importing input files which are not in an standard format. > > > > Where can I find more information on how to use SerDe? > > > > Saurabh. > > -- > > http://nandz.blogspot.com > > http://foodieforlife.blogspot.com > > > > > > -- > Yours, > Zheng > -- http://nandz.blogspot.com http://foodieforlife.blogspot.com
