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https://issues.apache.org/jira/browse/CASSANDRA-8973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558556#comment-14558556
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Mike Mansell commented on CASSANDRA-8973:
-----------------------------------------

This seems like a limitation that should be documented though, since I also ran 
into this one, and until I found this ticket, I couldn't find any other 
reference in the Cassandra docs about length limitations on column family names.

> Remove or lift arbitrary hard limit on names of schema elements.
> ----------------------------------------------------------------
>
>                 Key: CASSANDRA-8973
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8973
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Sergey Nagaytsev
>
> ERROR: "Column family names shouldn't be more than 48 characters long"
> Why 48 ? Why not 64, 256, or 8 like in good old DOS filenames ?
> I have schema generated from XML, it makes names by concatenation for some 
> kinds of column families, used as manual indexes.
> I did all my best for shortening of column names, since they repeat every 
> time in data (is that true for CQL 3.0.0 ?), but I feel so sad about the 
> necessity of adding extra shortening logic to other places.



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