PostgreSQL – Christopher Davis

PostgreSQL’s ROW_TO_JSON and JSON_AGG with JSON Columns

May 12, 2020May 12, 2020 Christopher Davis

I've hit this a few times and had to remind myself how Postgres behaves when aggregating JSON columns or including them in ROW_TO_JSON. The short answer is that Postgres does the right thing. When a JSON column is included in ROW_TO_JSON or JSON_AGG the resulting values are not nested, encoded JSON. Here's our sample table… Continue reading PostgreSQL’s ROW_TO_JSON and JSON_AGG with JSON Columns

Working with PostgreSQL Arrays in PHP

October 8, 2019 Christopher Davis

I recently had to do some work with PostgreSQL arrays in a PHP app. My first question: how do I manage arrays as parameterized values in a query? Turns out there are two ways forward: Array Literals These appear in the Postgres documentation as curly brace surrounded, comma delimited lists: {1,2,3}. A literal like this… Continue reading Working with PostgreSQL Arrays in PHP