Could you try to use $”a” rather than df(“a”)? The latter one sometimes
doesn’t work.
On Thu, Mar 21, 2019 at 10:41 AM kineret M wrote:
> I try to read a stream using my custom data source (v2, using spark 2.3),
> and it fails *in the second iteration* with the following exception while
>
I try to read a stream using my custom data source (v2, using spark 2.3),
and it fails *in the second iteration* with the following exception while
reading prune columns:Query [id=xxx, runId=yyy] terminated with exception:
assertion failed: Invalid batch: a#660,b#661L,c#662,d#663,,... 26 more