The shell uses an external module called sqlparse to strip the comments from a query file.
When sqlparse.format() is invoked, it runs several grouping functions on the
tokenized query text; some of these methods are very slow, and not needed for comment
removal. This change restricts sqlparse to only invoke the grouping function for removing
comments.
Change-Id: I3a067187667fcd3cd331156a325960a3de2db9c2
Reviewed-on: http://gerrit.ent.cloudera.com:8080/944
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: jenkins
