IMPALA-1021: Fix loading of views with decimal and complex-typed columns.

Change-Id: I8b63c31be47dd64f1e13fb29be3105b0f7e245dc
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/3820
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: jenkins