Bloom filter for JOIN queries

Speed up some JOIN queries by building a bloom filter from the right subtree at runtime and pass this filter to the scan in the left subtree. This can be beneficial for queries like SELECT avg(o_totalprice) FROM orders, customer, nation WHERE c_custkey = o_custkey AND c_nationkey=n_nationkey AND n_name = 'FRANCE'. #84772 (Alexander Gololobov).