Replace intersect with direct join in processing subquery's AND logic.
bugfix:repeatedly process subquery,TPCH 11.sql 15.sql
bugfix:lost right table's uncorrelated column & reference column name when alias name is exist.TPCH 4.sql & 20.sql
transform NOT EXISTS with LEFT OUTRE JOIN(replacing NOT IN and EXISTS) & bugfix TPCH 4.sql
add ISNULL hint to context for CrossjoinTransformer
Skip moving a condition from Where into join if there is a hint preventing this.