Allow to specify Oracle-style hint on INSERT/UPSERT statements. For example,
- insert /* +noshuffle */ into table functional.alltypes partition(year,
month) select * from functional.alltypes;
- upsert /* +noshuffle */ into functional_kudu.alltypes select * from
functional.alltypes;
Testing:
Add unit tests to ParserTest#TestPlanHints
Add plan check tests to PlannerTest#testInsert, PlannerTest#testKuduUpsert
Add tests to ToSqlTest#planHintsTest
Change-Id: Ied7629d70197a0270cdc0853e00cc021fdb4dc20
Reviewed-on: http://gerrit.cloudera.org:8080/8676
Reviewed-by: Dimitris Tsirogiannis <dtsirogiannis@cloudera.com>
Tested-by: Impala Public Jenkins
99962d2e81