[jira] [Updated] (CASSANDRA-2903) Default behavior of generating index_name for columns might need to be improved.

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-2903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-2903:
--------------------------------------

    Attachment: 2903.txt

patch to include CF name in default name

> Default behavior of generating index_name for columns might need to be improved.
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2903
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2903
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: API
>    Affects Versions: 0.8.1
>            Reporter: Boris Yen
>             Fix For: 0.8.2
>
>         Attachments: 2903.txt
>
>
> I have a few column families, each has a column called user_name. I tried to use secondary index on user_name column for each of the column family. However, when creating these column families, cassandra keeps reporting "Duplicate index name..." exception. I finally figured out that it seems the default index name is "column name"+"_idx", this make my column family violate the "uniqueness of index name" rule.
> I was wondering if the default index_name generating rule could be like "column name"+"cf name", so the index name would not collide with each other that easily, if the user do not assign "index_name" when creating a column family.

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