-- Backfill any category that exists in categories_v2_lft_rgt but is missing
-- from the canonical `categories` table. The canonical table is what
-- product_category references via FK, so every v2 category must have a
-- corresponding row there (with is_v2 = true).
--
-- This covers categories 1824 and 1825 (created before insertNode was fixed)
-- and any other gaps that may exist. ON CONFLICT makes it safe to re-run.
INSERT INTO categories (id, name, is_v2)
SELECT  v2.id, v2.name, true
FROM    categories_v2_lft_rgt v2
WHERE   NOT EXISTS (
            SELECT 1 FROM categories c WHERE c.id = v2.id
        )
ON CONFLICT (id) DO NOTHING;