Alright, thanks again!
Very sadly, no. It's not (yet?) meant to be a particularly good interactive language, so the only "function" in cql is COUNT(), and that's really just special syntax. It seems, though, that you might actually be better off with a key of type 'ascii' or 'text', if that's how you expect to work with it. Would it be an option to adjust that table?The ASSUME-changes-outgoing-cql ticket (CASSANDRA-3799) would also help, so maybe keep an eye on that.pOn Thu, May 3, 2012 at 1:22 PM, Eric Czech <firstname.lastname@example.org> wrote:
Gotcha, I probably should have guessed that much. Does CQL have any functions to convert ascii to hex so that I don't have to do that conversion elsewhere (I don't see one in the docs)?On Thu, May 3, 2012 at 2:09 PM, paul cannon <email@example.com> wrote:On Thu, May 3, 2012 at 12:46 PM, Eric Czech <firstname.lastname@example.org> wrote:I can't believe I have to ask this but I have a CF with about 10 rows and the keys are literally 1 through 9.Why does this not work if I want the row where the key is ascii('5')?
cqlsh:Keyspace1> select first 1 * from CF where key = '5';KEY-----05This depends on the configured type (key_validation) of the key. From what you've posted, it looks like CQL is treating it as 'blob', not 'ascii'.* I saw the Jira about the sort of phantom row with no values so I know why that's thereListing the keys shows something like this:cqlsh:Keyspace1> select key from CF ;key------333635383231393437If I prepend a '3' to my key queries it works but I can't possibly see why I would have to do that.cqlsh:Keyspace1> select first 1 * from CF where key = '35';( Returns the right rows for key '5')Cause 35 is hex for ascii(5), as you pointed out.Changing the validator appears to make no material difference beyond the key listing:This is because ASSUME is only a cqlsh feature, and only affects how data is deserialized. There is a ticket out for cqlsh also to mangle your outgoing CQL statements to match ASSUMEd types too, but that's not there yet.HTH,p