This kind of errors usually happens when there is an unsupported schema change in the json files, but you should be able to reproduce the error with just a select statement. Can you share both queries you tried (the failing CTAS and the successful SELECT *) ?
Thanks On Fri, Sep 18, 2015 at 5:38 AM, Stefán Baxter <[email protected]> wrote: > Hi, > > I have some json files that I want to transform to parquet. > > We have been doing this without any issues but this time around I get this > exception: > > Error: SYSTEM ERROR: IllegalStateException: Failure while reading vector. > Expected vector class of org.apache.drill.exec.vector.NullableVarCharVector > but was holding vector class > org.apache.drill.exec.vector.complex.MapVector. > > Fragment 2:0 > > [Error Id: 86501e92-5319-4540-9cf3-9a1aede4554b on localhost:31010] > (state=,code=0) > > Adding verbosity adds no additional information regarding the > source/row/column that triggers this reaction. > > I have successfully executed "select * from <same-directory>" and that has > run perfectly. For me this means that the issue is CTAS related. > > I'm running a fresh build from master to execute this. > > Any ideas/pointers? > > Regards, > -Stefán > -- Abdelhakim Deneche Software Engineer <http://www.mapr.com/> Now Available - Free Hadoop On-Demand Training <http://www.mapr.com/training?utm_source=Email&utm_medium=Signature&utm_campaign=Free%20available>
