Properly escape Impala column names
Properly escape Impala column names

In case the table uses Impala SQL reserved keywords, it's better to
escape all columns, so that the user can simply copy and paste the
command in the impala-shell.

Change-Id: I3ce983c67262604167adef2882c24802362b01ba
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/7354
Tested-by: jenkins
Reviewed-by: Adar Dembo <866ca730bfc7f544e3ebce604ceeba4879f23df0@cloudera.com>

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