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https://issues.apache.org/jira/browse/CASSANDRA-6136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dave Brosius updated CASSANDRA-6136:
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Attachment: (was: 6136_v2.txt)
> CQL should not allow an empty string as column identifier
> ---------------------------------------------------------
>
> Key: CASSANDRA-6136
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6136
> Project: Cassandra
> Issue Type: Bug
> Reporter: Michaël Figuière
> Assignee: Dave Brosius
> Priority: Minor
> Attachments: 6136.txt, 6136_v2.txt
>
>
> CQL currently allows users to create a table with an empty string as column
> identifier:
> {code}
> CREATE TABLE t (k int primary key, "" int);
> {code}
> Which results in the following table:
> {code}
> CREATE TABLE t (
> k int,
> "" int,
> PRIMARY KEY (k)
> ) WITH
> bloom_filter_fp_chance=0.010000 AND
> caching='KEYS_ONLY' AND
> comment='' AND
> dclocal_read_repair_chance=0.000000 AND
> gc_grace_seconds=864000 AND
> index_interval=128 AND
> read_repair_chance=0.100000 AND
> replicate_on_write='true' AND
> populate_io_cache_on_flush='false' AND
> default_time_to_live=0 AND
> speculative_retry='NONE' AND
> memtable_flush_period_in_ms=0 AND
> compaction={'class': 'SizeTieredCompactionStrategy'} AND
> compression={'sstable_compression': 'SnappyCompressor'};
> {code}
> Empty strings are not allowed for keyspace and table identifiers though.
> I guess it's just a case that we haven't covered. Of course making it illegal
> in a future version would be a breaking change, but nobody serious would
> manually have chosen such an identifier...
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