Legible and efficient SQL, with CTEs(iron.io)
iron.io
Legible and efficient SQL, with CTEs
http://www.iron.io/blog/2015/09/legible-efficient-sql-with-ctes.html
1 comments
Legible? Absolutely. But it's important to keep in mind that CTE's are optimization fences. Optimizations like predicate pushdown are not currently available. More complicated queries may benefit from being rewritten with subqueries.