COPY command fails with FORMAT AS JSON 'auto'

[peterlitvak]

The following command:

COPY event1f0fbc67_3680_46e8_a19f_09948950d2be FROM 's3://test-redshift/event/e30aef8d-996a-404e-8a5a-899dc00d1364' 
CREDENTIALS '...' 
TIMEFORMAT 'YYYY-MM-DD HH:MI:SS'
ENCODING UTF16LE
FORMAT AS JSON 'auto';

Fails with:

jp.ne.opt.redshiftfake.FakeAmazonSQLException: Row List(Column(Some({))) has different value count then Vector(ColumnDefinition(id,Varchar), ...)

I've checked in a debugger and content is read from S3 successfully but then when it comes to:

case CopyFormat.Json(Some(jsonpathsLocation))

the execution skips it and goes to the manifest case.
It appears that only JSONPaths JSON format is supported.