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https://issues.apache.org/jira/browse/CASSANDRA-4377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402002#comment-13402002
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Sylvain Lebresne commented on CASSANDRA-4377:
---------------------------------------------
What happens is that columns metadata for composite CQL3 columns refers to only
one of the component of the column name. So internally they have a
'componentIndex' parameter which allow to handle them correctly (otherwise you
don't know which comparator to use to display those column metadata). However,
we decided that thrift users shouldn't have to care about this, so we don't
expose those metadata to thrift at all. In other words, the CF does have
metadata for 'sum' and 'uniques' internally, but they are not exposed to thrift.
So I guess it is more of a cqlsh problem that shouldn't use the thrift describe
call for CQL3. Instead, it should directly query the system.keyspace,
system.columnfamilies and system.columns table. However, it'd be much more
easier to do that with CASSANDRA-4018, but that is not in 1.1.
> CQL3 column value validation bug
> --------------------------------
>
> Key: CASSANDRA-4377
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4377
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.1.1
> Reporter: Nick Bailey
> Assignee: Sylvain Lebresne
> Fix For: 1.1.2
>
>
> {noformat}
> cqlsh> create keyspace test with strategy_class = 'SimpleStrategy' and
> strategy_options:replication_factor = 1;
> cqlsh> use test;
> cqlsh:test> CREATE TABLE stats (
> ... gid blob,
> ... period int,
> ... tid blob,
> ... sum int,
> ... uniques blob,
> ... PRIMARY KEY(gid, period, tid)
> ... );
> cqlsh:test> describe columnfamily stats;
> CREATE TABLE stats (
> gid blob PRIMARY KEY
> ) WITH
> comment='' AND
>
> comparator='CompositeType(org.apache.cassandra.db.marshal.Int32Type,org.apache.cassandra.db.marshal.BytesType,org.apache.cassandra.db.marshal.UTF8Type)'
> AND
> read_repair_chance=0.100000 AND
> gc_grace_seconds=864000 AND
> default_validation=text AND
> min_compaction_threshold=4 AND
> max_compaction_threshold=32 AND
> replicate_on_write='true' AND
> compaction_strategy_class='SizeTieredCompactionStrategy' AND
> compression_parameters:sstable_compression='SnappyCompressor';
> {noformat}
> You can see in the above output that the stats cf is created with the column
> validator set to text, but neither of the non primary key columns defined are
> text. It should either be setting metadata for those columns or not setting a
> default validator or some combination of the two.
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