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https://issues.apache.org/jira/browse/CASSANDRA-6402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831268#comment-13831268
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Aleksey Yeschenko commented on CASSANDRA-6402:
----------------------------------------------
The issue lies in deep cassandra-dbapi2 internals, not in cqlsh. It will go
away once we switch from cassandra-dbapi2 to python-driver for cqlsh
(CASSANDRA-6307).
> cannot query using DynamicCompositeType
> ---------------------------------------
>
> Key: CASSANDRA-6402
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6402
> Project: Cassandra
> Issue Type: Bug
> Components: API, Core
> Reporter: victorsosa
> Priority: Minor
>
> HI,
> I cannot query using DynamicCompositeType.
> And this is how it is define the column family:
> DynamicCompositeType
> (l=>LongType,t=>TimeUUIDType,s=>UTF8Type,S=>UTF8Type(reversed=true),L=>LongType(reversed=true),T=>TimeUUIDType(reversed=true))
> this code is from the project countandra:
> csdb.createColumnFamily(
> CassandraStorage.s_keySpace,
> countandraCF,
> "UTF8Type",
> "DynamicCompositeType
> (l=>LongType,t=>TimeUUIDType,s=>UTF8Type,S=>UTF8Type(reversed=true),L=>LongType(reversed=true),T=>TimeUUIDType(reversed=true))",
> "CounterColumnType");
> you can get the code for test from:
> https://github.com/milindparikh/Countandra
> The Hector api is calling the same column family with data and it is WORKING
> FINE, the issue is only when I am trying to use CQL to query the table "ddcc".
> NOTE: the project is using cassandra 1.0.1, I updated it to cassandra 2.0.2
> If I try something like:
> select * from ddcc;
> Error get trying to query a table that have a DynamicCompositeType
> ========================================
> cqlsh> use countandra;
> cqlsh:countandra> select * from ddcc;
> Traceback (most recent call last):
> File "./cqlsh", line 901, in perform_statement_untraced
> self.cursor.execute(statement, decoder=decoder)
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cursor.py", line
> 81, in execute
> return self.process_execution_results(response, decoder=decoder)
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/thrifteries.py",
> line 116, in process_execution_results
> self.get_metadata_info(self.result[0])
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cursor.py", line
> 97, in get_metadata_info
> name, nbytes, vtype, ctype = self.get_column_metadata(colid)
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cursor.py", line
> 104, in get_column_metadata
> return self.decoder.decode_metadata_and_type(column_id)
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/decoders.py", line
> 40, in decode_metadata_and_type
> valdtype = cqltypes.lookup_casstype(validator)
> File "./../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cqltypes.py", line
> 145, in lookup_casstype
> raise ValueError("Don't know how to parse type string %r: %s" %
> (casstype, e))
> ValueError: Don't know how to parse type string
> 'org.apache.cassandra.db.marshal.DynamicCompositeType(T=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.TimeUUIDType),t=>org.apache.cassandra.db.marshal.TimeUUIDType,s=>org.apache.cassandra.db.marshal.UTF8Type,S=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.UTF8Type),L=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.LongType),l=>org.apache.cassandra.db.marshal.LongType)':
> weird characters
> '=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.TimeUUIDType),t=>org.apache.cassandra.db.marshal.TimeUUIDType,s=>org.apache.cassandra.db.marshal.UTF8Type,S=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.UTF8Type),L=>org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.LongType),l=>org.apache.cassandra.db.marshal.LongType)'
> at end
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