4 Jun, 2025

SQL UNION ALL - add column with source

The following is an example on how to add a new column source depending on the origin query

SELECT code, url, 'TABLE_1' AS source
	FROM my_schema.table1
	WHERE code = $1
UNION ALL
SELECT code, url, 'TABLE_2' AS source
	FROM my_schema.table2
	WHERE code = $1