Answer by madhuri Buddhadev for How to do an update + join in PostgreSQL?

--goal: update selected columns with join (postgres)--

UPDATE table1 t1      SET    column1 = 'data'FROM   table1           RIGHT JOIN table2                  ON table2.id = table1.id   WHERE  t1.id IN     (SELECT table2.id   FROM   table2   WHERE  table2.column2 = 12345)