The recent documentation formatting changes introduced the navigation
panel on the left. However, due to the length of the query options
navigation title these could overlap with the documentation paragraphs.
This commit removes the underscores from the navigation titles of the
query options, so browsers can break them into multiple lines.
Additionally, the "SET" and "Query Options for the SET Statement" pages
are merged to save some more space for the query option navigation
titles.
Testing:
- Built the documentation and tested manually
Change-Id: Icec787d7a2af848aaaff65be2ecf311a5ce8fe7f
Reviewed-on: http://gerrit.cloudera.org:8080/20556
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Jason Fehr <jfehr@cloudera.com>
Reviewed-by: Peter Rozsa <prozsa@cloudera.com>
Reviewed-by: Tamas Mate <tmater@apache.org>
