I'm putting a collection onto the wire in an EXECUTE request with exactly the
same bytes that were received and I get:
"Can't apply operation on column with
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)
type"
Here's the full trace log from cassandra:
DEBUG 19:24:15,414 Received: PREPARE INSERT INTO things (id, set_text) VALUES
(?, ?);
TRACE 19:24:15,414 CQL QUERY: INSERT INTO things (id, set_text) VALUES (?, ?);
TRACE 19:24:15,415 Stored prepared statement #413587006 with 2 bind markers
DEBUG 19:24:15,415 Responding: RESULT PREPARED 413587006 [id(gocql_collections,
things),
org.apache.cassandra.db.marshal.TimeUUIDType][set_text(gocql_collections,
things),
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)]
DEBUG 19:24:15,416 Received: EXECUTE 413587006 with 2 values
TRACE 19:24:15,416 [1] 'java.nio.HeapByteBuffer[pos=18 lim=34 cap=53]'
TRACE 19:24:15,416 [2] 'java.nio.HeapByteBuffer[pos=38 lim=51 cap=53]'
DEBUG 19:24:15,417 Responding: ERROR INVALID: Can't apply operation on column
with
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)
type.
The prepared statement is:
INSERT INTO things (id, set_text) VALUES (?, ?);
and the collection value ({'asdf', 'sdf'}) is encoded as:
00 02 00 04 61 73 64 66 00 03 73 64 66
which is byte-for-byte exactly the same as what I get from Cassandra off the
wire when I do a query for the same data.
I already have the driver working with other queries/inserts with all types, so
this is just a collection encoding problem.
Thanks,
Jonathan
On Sep 30, 2012, at 2:34 PM, Sylvain Lebresne <[email protected]> wrote:
> On Sun, Sep 30, 2012 at 6:02 PM, Jonathan Rudenberg
> <[email protected]> wrote:
>> I found CASSANDRA-4453, but this only seems to specify the response format.
>
> It's the same format for EXECUTE.
>
>> Any pointers would be appreciated.
>
> I'm afraid there isn't much more than the source at this point but
> I'll try to add something about that in the protocol spec.
>
> --
> Sylvain
