以下は公式ドキュメントをもとに、僕が使っていて気づいたことや失敗例も織り交ぜて、記録用に整理した勉強用のnoteです。 何をするノードか：分岐や別系統から来た複数のストリーム（線）を1本に合流したり、アイテムを突き合わせて結合する。

The Output Clause returns information from, or expressions based on, each row affected by an INSERT, UPDATE, DELETE, or MERGE statement. Using the Output Clause helps us keep track of what we are ...

This system stored procedure takes a table name as a parameter and generates a MERGE statement containing all the table data. This is useful if you need to migrate static data between databases, eg.

EnterpriseDB (EDB), a provider accelerating Postgres in the enterprise, is adding a series of contributions to PostgreSQL 15, which is now globally available, marking the introduction of the MERGE SQL ...