What is the problem of insert overwrite a table stored by carbondata

[condor]

When I use "insert overwrite tableA select ... from tableB" ,tableA is stored by carbondata and the result is append instead of overwrite, what's wrong?

[David CaiQiang]

Hi,
  Now CarbonData don't implement overwrite InsertInto.

  It is a bug, should be fixed, and we can implement overwrite InsertInto.

Best Regards
David QiangCai