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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6402) cannot query using DynamicCompositeType
Date Mon, 25 Nov 2013 08:18:36 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831262#comment-13831262
] 

Sylvain Lebresne commented on CASSANDRA-6402:
---------------------------------------------

Then can't we just bail on the parsing and use the same treatment as 'regular' custom types?
Being pedantic, it would actually be possible for a custom type to use the same kind of definition
than DCT.

> 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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