-RE: HIVE-49 and other forms of CLI niceness
Ashish Thusoo 2010-01-27, 21:55
Looks like a good suggestion. Ideally the driver code should just return a structure that encodes the columns separately as opposed to a single serialized string today and the formatting logic should all be in the CliDriver
From: Edward Capriolo [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 27, 2010 1:00 PM
To: [EMAIL PROTECTED]
Subject: HIVE-49 and other forms of CLI niceness
Some simple features in Hive can really bring down the learning curve for new users. I am teaching some how to use hive.
A buddy if mine did this.
hive> select * from mt_date_test;
a 2010-01-01 NULL
b 2009-12-31 NULL
c 2010-01-27 NULL
hive> select * from mt_date_test where my_date > '2010-01-01';
2010-01-27 08:18:27,008 map = 100%, reduce =100% Ended Job = job_200909171715_20264 OK
I instantly suspected 1) whiteplace 2) delimeters
hive> select key from mt_date_test;
Should we use a pipe | or some other column delimiter like the mysql CLI does? and have this be a property that is on by default
In its current state the user understandably made the assumption that '>' does not work on strings.
Should we add some expose the format of the results in Driver so that the CLI can effectively split the rows by column?