On 3/29/21 3:00 PM, Don Seiler wrote: > > I'm wondering if this is expected behavior that PG uses the > dts_orders.order_id value in the subquery "select order_id from > dts_temp" when dts_temp doesn't have its own order_id column. I would > have expected an error that the column doesn't exist. Seems very > counter-intuitive to think PG would use a column from a different table.