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From "Blake Visin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2939) CQL regex to match column family in query
Date Fri, 22 Jul 2011 19:38:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13069692#comment-13069692
] 

Blake Visin commented on CASSANDRA-2939:
----------------------------------------

How do I do code blocks?  The regex's don't show up correctly in the description and the syntax
is underlining it.

> CQL regex to match column family in query
> -----------------------------------------
>
>                 Key: CASSANDRA-2939
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2939
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Drivers
>         Environment: Python CQL
>            Reporter: Blake Visin
>              Labels: CQL, python
>
> In the file cursor.py (https://svn.apache.org/repos/asf/cassandra/drivers/py/cql/cursor.py)
> Line 37: _cfamily_re = re.compile("\s*SELECT\s+.+\s+FROM\s+[\']?(\w+)", re.I | re.M)
> The Regex will improperly match anything after the word  'from' even if it is in the
WHERE clause
> I believe the fix is:
> _cfamily_re = re.compile("\s*SELECT\s+.+?\s+FROM\s+[\']?(\w+)", re.I | re.M)
> Added the ? so the regex is not so greedy
> use this query to reproduce the results:
> SELECT key FROM column_family WHERE key = 'break from chores'"

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