solr - CqlSolrQueryExecutor: Undefined name x in selection clause -

i'm using dse solr , ran problem whenever query via cql using 'as' assign value not defined in schema.

eg:

      select f_2 d881 solr_query='f_2:1';

would return results. doing:

      select f_2, token(f_n) fk d881 solr_query='f_2:1';

would yield:

      unable complete request: 1 or more nodes unavailable.

checking logs can see error:

      error [thrift:7] 2015-03-21 02:59:58,272 cqlsolrqueryexecutor.java (line 202) java.lang.runtimeexception: undefined name fk in selection clause

i understand it's because solr isn't aware of fieldnames, don't know how configure ignore them.

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