Undefined column 'boomarks.post_id' after update

[codingCoffee (Ameya Shenoy)]

Faced the same issue while updating today. Adding back the post_id column helped fix it.

Steps:

1. enter the discourse container

./launcher enter app

2. Enter psql

sudo -u postgres psql discourse

3. Add back the post_id column in the bookmarks table

ALTER TABLE bookmarks ADD COLUMN post_id int;