CQL transport (was: CQL DELETE statement)
On Tue, 19 Apr 2011 00:21:44 +0100 Courtney Robinson sa...@live.co.uk wrote: CR Cool... Okay, the plan is to eventually not use thrift underneath, CR for the CQL stuff right? Once this is done and the new transport is CR in place, or evening while designing the new transport, is this not CR something that's worth looking into again? I think it'd be a nice CR feature. I'm assuming your question was tangential and not in the sense that fixing the transport will fix the reported issue. There's https://issues.apache.org/jira/browse/CASSANDRA-2478 for a custom non-Thrift protocol. Most of the Cassandra developers feel HTTP+JSON or XML is inadequate for this purpose; while this may be true for some cases, it's also true that for many of the end users HTTP+JSON or XML is easier to support and use from a client. So I hope eventually HTTP as the transport and JSON or XML as the serialization format are at least an option. Ted
Re: CQL DELETE statement
Cool... Okay, the plan is to eventually not use thrift underneath, for the CQL stuff right? Once this is done and the new transport is in place, or evening while designing the new transport, is this not something that's worth looking into again? I think it'd be a nice feature. -Original Message- From: Jonathan Ellis Sent: Monday, April 18, 2011 3:24 AM To: user@cassandra.apache.org Cc: Tyler Hobbs Subject: Re: CQL DELETE statement Very old. https://issues.apache.org/jira/browse/CASSANDRA-494 On Sun, Apr 17, 2011 at 7:49 PM, Tyler Hobbs ty...@datastax.com wrote: You are correct, but this is also a limitation with the Thrift API -- it's not CQL specific. It turns out that deleting a slice of columns is difficult. There's an old JIRA ticket somewhere that describes the issues. On Sun, Apr 17, 2011 at 7:45 PM, Courtney Robinson sa...@live.co.uk wrote: Looking at the CQL spec, it doesn’t seem to be possible to delete a range of columns for a given key without specifying the individual columns to be removed, for e.g. DELETE col1 .. col20 from CF WHERE KEY=key|(key1,key2) Am I correct in thinking so or have I missed that somewhere? -- Tyler Hobbs Software Engineer, DataStax Maintainer of the pycassa Cassandra Python client library -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
Re: CQL DELETE statement
Transport isn't the problem. On Mon, Apr 18, 2011 at 6:21 PM, Courtney Robinson sa...@live.co.uk wrote: Cool... Okay, the plan is to eventually not use thrift underneath, for the CQL stuff right? Once this is done and the new transport is in place, or evening while designing the new transport, is this not something that's worth looking into again? I think it'd be a nice feature. -Original Message- From: Jonathan Ellis Sent: Monday, April 18, 2011 3:24 AM To: user@cassandra.apache.org Cc: Tyler Hobbs Subject: Re: CQL DELETE statement Very old. https://issues.apache.org/jira/browse/CASSANDRA-494 On Sun, Apr 17, 2011 at 7:49 PM, Tyler Hobbs ty...@datastax.com wrote: You are correct, but this is also a limitation with the Thrift API -- it's not CQL specific. It turns out that deleting a slice of columns is difficult. There's an old JIRA ticket somewhere that describes the issues. On Sun, Apr 17, 2011 at 7:45 PM, Courtney Robinson sa...@live.co.uk wrote: Looking at the CQL spec, it doesn’t seem to be possible to delete a range of columns for a given key without specifying the individual columns to be removed, for e.g. DELETE col1 .. col20 from CF WHERE KEY=key|(key1,key2) Am I correct in thinking so or have I missed that somewhere? -- Tyler Hobbs Software Engineer, DataStax Maintainer of the pycassa Cassandra Python client library -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
Re: CQL DELETE statement
Very old. https://issues.apache.org/jira/browse/CASSANDRA-494 On Sun, Apr 17, 2011 at 7:49 PM, Tyler Hobbs ty...@datastax.com wrote: You are correct, but this is also a limitation with the Thrift API -- it's not CQL specific. It turns out that deleting a slice of columns is difficult. There's an old JIRA ticket somewhere that describes the issues. On Sun, Apr 17, 2011 at 7:45 PM, Courtney Robinson sa...@live.co.uk wrote: Looking at the CQL spec, it doesn’t seem to be possible to delete a range of columns for a given key without specifying the individual columns to be removed, for e.g. DELETE col1 .. col20 from CF WHERE KEY=key|(key1,key2) Am I correct in thinking so or have I missed that somewhere? -- Tyler Hobbs Software Engineer, DataStax Maintainer of the pycassa Cassandra Python client library -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
