Thanks for the report. I don’t think this is specific to HyperDB because that’s in use on WordPress.com VIP and I haven’t had any reports about that error there, but I can’t be 100% sure.
Could you let me know which components are listed in the Duplicate Queries panel in QM? It might be that one of them is doing something unexpected.
SELECT name, val, autoload
FROM wp_wfconfig
WHERE name = 'detectProxyRecommendation'
SELECT *
FROM wp_yoast_indexable
WHERE object_id = '8192513'
AND object_type = 'post'
LIMIT 1
SELECT *
FROM wp_gf_form
WHERE id=20
SELECT *
FROM wp_gf_addon_feed
WHERE addon_slug='gravityformsauthorizenet'
AND form_id=20
ORDER BY feed_order, id ASC
SELECT *
FROM wp_gf_addon_feed
WHERE addon_slug='gravityformsppcp'
AND form_id=20
ORDER BY feed_order, id ASC
SELECT *
FROM wp_gf_form
WHERE id=19
SELECT *
FROM wp_gf_addon_feed
WHERE addon_slug='gravityformsauthorizenet'
AND form_id=19
ORDER BY feed_order, id ASC
SELECT *
FROM wp_gf_addon_feed
WHERE addon_slug='gravityformsppcp'
AND form_id=19
ORDER BY feed_order, id ASC
Sure, here are the queries. It seems like it’s Wordfence, Yoast, and Gravity Forms. The Gravity Forms add-ons appear to be the worst offenders.