PostgreSQL, SQL, PerformanceHow to avoid common pitfalls with common table expressions in PostgreSQL
Common table expressions (CTE), also known as the WITH clause, are a very useful feature. They help break down big queries into smaller pieces which makes it easier to read and understand. PostgreSQL Version This article is intended for PostgreSQL versions 11 and prior. Starting at version 12, PostgreSQL changed the way it treats CTE to prevent the issues described in this article.Wha...
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