Use UTF-8 to encode the name of column in Python 2, or it may failed to encode with default encoding ('ascii').
This PR also fix a bug when there is Java exception without error message.
Author: Davies Liu <davies@databricks.com>
Closes#7165 from davies/non_ascii and squashes the following commits:
02cb61a [Davies Liu] fix tests
3b09d31 [Davies Liu] add encoding in header
867754a [Davies Liu] support non-ascii character in column names
Capture the AnalysisException in SQL, hide the long java stack trace, only show the error message.
cc rxin
Author: Davies Liu <davies@databricks.com>
Closes#7135 from davies/ananylis and squashes the following commits:
dad7ae7 [Davies Liu] add comment
ec0c0e8 [Davies Liu] Update utils.py
cdd7edd [Davies Liu] add doc
7b044c2 [Davies Liu] fix python 3
f84d3bd [Davies Liu] capture SQL AnalysisException in Python API
