Update Column With Another Column From Same Table - postgresql

Question

I have a table named items_list:
id item_name required_number group_id alcoholic alt_item dislciamer alt_disclaimer
---------------------------------------------------------------------------------------------
1 Draft Beer 1 24 true Appetizer Local Brand null
2 Burger 3 24 false null null null
3 Margarita 10 24 true Street Corn null Only one
4 Alcohol 1 10 true Burger null null
5 Frito Lay 3 10 false null null null
And I want to update the item_name with the alt_item IF the alcoholic is TRUE AND it's not NULL.
I tried this query
UPDATE items_list rl
SET item_name = rl2.alt_item AND disclaimer = rl2.alt_disclaimer
FROM items_list rl2
WHERE rl.required_number = rl2.required_number AND rl.group_id = 24 AND rl.alt_item IS NOT NULL AND rl.alcoholic = TRUE;
But I get: Query Error: error: argument of AND must be type boolean, not type character varying
The only boolean I have is the alcoholic option but I don't know why is throwing that error, do I need to change something on my query?
Here's a DB Fiddle for example: https://www.db-fiddle.com/f/7BvUh2FzkDhZhjqFfy1niT/4

Answer 1

Try to remove AND in the SET clause:
UPDATE items_list rl
SET item_name = rl2.alt_item,
disclaimer = rl2.alt_disclaimer
FROM items_list rl2
WHERE rl.required_number = rl2.required_number
AND rl.group_id = 24
AND rl.alt_item IS NOT NULL
AND rl.alcoholic = TRUE;