fix plangen and plan difference

Author: max-hoffman

enginetest/join_planning_tests.go

@@ -731,7 +731,7 @@ with recursive rec(x) as (
 )
 select * from uv
 where u in (select * from rec);`,
-				types: []plan.JoinType{plan.JoinTypeSemi, plan.JoinTypeHash},
+				types: []plan.JoinType{plan.JoinTypeSemi, plan.JoinTypeInner},
 				exp:   []sql.Row{{1, 1}},
 			},
 			{

enginetest/plangen/testdata/spec.yaml

@@ -5,9 +5,8 @@ plans:
     path: enginetest/queries/index_query_plans.go
   - name: IntegrationPlanTests
     path: enginetest/queries/integration_plans.go
-# this suite is throwing a missing table error, despite the table being in the set up
-#  - name: TpchPlanTests
-#    path: enginetest/queries/tpch_plans.go
+  - name: TpchPlanTests
+    path: enginetest/queries/tpch_plans.go
   - name: TpccPlanTests
     path: enginetest/queries/tpcc_plans.go
 #  - name: TpcdsPlanTests

enginetest/queries/tpch_plans.go

@@ -1,11 +1,3 @@
-exec
-CREATE DATABASE tpch character set utf8mb4;
-----
-
-exec
-USE tpch;
-----
-
 exec
 CREATE TABLE nation  ( N_NATIONKEY INTEGER primary key,
     N_NAME       CHAR(25) NOT NULL,