Craig Kerstiens • 4/17/2013

Using array_agg in Postgres – powerful and flexible

This technical article explains how to use PostgreSQL's array_agg aggregate function to group and format data directly within SQL queries. It provides a practical example from a project management application, demonstrating how to efficiently compile lists (like overdue tasks per project) for tasks such as email notifications, reducing the need for post-processing in application code.

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#database #sql #postgresql