'null' is how cqlsh displays empty cells: https://github.com/apache/cassandra/blob/trunk/pylib/cqlshlib/formatting.py#L47-L58
On Thu, Oct 23, 2014 at 9:36 AM, DuyHai Doan <doanduy...@gmail.com> wrote: > Hello Jens > > What do you mean by "cqlsh explicitely writes 'null' in those cells" ? > Are you seing textual value "null" written in the cells ? > > > Null in CQL can have 2 meanings: > > 1. the column did not exist (or more precisely, has never been created) > 2. the column did exist sometimes in the past (has been created) but then > has been deleted (tombstones) > > > > On Thu, Oct 23, 2014 at 8:37 AM, Jens Rantil <jens.ran...@tink.se> wrote: > >> Hi, >> >> Not sure this is a Datastax specific question to be asked elsewhere. In >> that case, let me know. >> >> Anyway, I have populated a Cassandra table from DSE Hive. When I fire up >> cqlsh and execute a SELECT against the table I have columns of INT type >> that are empty. At first I thought these were null, but it turns out that >> cqlsh explicitly writes "null" in those cells. What can I make of this? A >> bug in Hive serialization to Cassandra? >> >> Cheers, >> Jens >> >> — >> Sent from Mailbox <https://www.dropbox.com/mailbox> >> > >
