Combine

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	123 of 123	0%	6 of 6	0%	9	9	22	22	6	6
deriveRowType()		0%		0%	2	2	6	6	1	1
explainTerms(RelWriter)		0%		0%	2	2	5	5	1	1
computeSelfCost(RelOptPlanner, RelMetadataQuery)		0%		0%	2	2	6	6	1	1
Combine(RelOptCluster, RelTraitSet, List)		0%		n/a	1	1	3	3	1	1
create(RelOptCluster, RelTraitSet, List)		0%		n/a	1	1	1	1	1	1
getInputs()		0%		n/a	1	1	1	1	1	1