Add tpch.q17 test query to big_query tests group
That query often causes JVM on travis to hit the travis memory limit.
Because of that this and all the subsequent tests are failing.
--- database: presto; groups: tpch; tables: lineitem,part
+-- database: presto; groups: tpch, big_query; tables: lineitem,part
SELECT sum(l_extendedprice) / 7.0 AS avg_yearly
FROM
lineitem,
