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From manishgupta88 <...@git.apache.org>
Subject [GitHub] incubator-carbondata pull request #526: [CARBONDATA-629] Issue with database...
Date Thu, 12 Jan 2017 09:19:57 GMT
GitHub user manishgupta88 opened a pull request:

    https://github.com/apache/incubator-carbondata/pull/526

    [CARBONDATA-629] Issue with database name case sensitivity

    **Analysis:** When database name is provided in any DDL/DML command, the database name
is interpreted and used in the same case as provided by the user. This leads to different
behavior in windows and unix systems as windows is case sensitive and linux systems are case
insensitive.
    Consider a case for create database. Lets say database name is "Carbon". While executing
database name is provided as Carbon but while deleting or using or creating table the case
is changed to "CARbOn". In these cases system will not behave correctly and if HDFS UI is
checked the database Carbon will still exist even after dropping database as the case for
database name was different in the 2 commands execution.
    
    **Fix:** Always convert the database name to lower case for any DDL/DML operation while
parsing so that the behavior remains consistent.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/manishgupta88/incubator-carbondata database_name_case_fix

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-carbondata/pull/526.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #526
    
----
commit 8d77f3c046c5fadb4ad659c5ae9f69d3ca08f1ed
Author: manishgupta88 <tomanishgupta18@gmail.com>
Date:   2017-01-11T16:25:36Z

    Problem: Issue with database name case sensitivity
    
    Analysis: When database name is provided in any DDL/DML command, the database name is
interpreted and used in the same case as provided by the user. This leads to different behavior
in windows and unix systems as windows is case sensitive and linux systems are case insensitive.
    Consider a case for create database. Lets say database name is "Carbon". While executing
database name is provided as Carbon but while deleting or using or creating table the case
is changed to "CARbOn". In these cases system will not behave correctly and if HDFS UI is
checked the database Carbon will still exist even after dropping database as the case for
database name was different in the 2 commands execution.
    
    Fix: Always convert the database name to lower case for any DDL/DML operation while parsing
so that the behavior remains consistent.

----


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