.raw(`UPDATE pageHistory AS h1 INNER JOIN pageHistory AS h2 ON h2.id = (SELECT prev.id FROM pageHistory AS prev WHERE prev.pageId = h1.pageId AND prev.id < h1.id ORDER BY prev.id DESC LIMIT 1) SET h1.versionDate = h2.createdAt`)
.raw(`UPDATE pageHistory AS h1 SET versionDate = COALESCE((SELECT createdAt FROM pageHistory AS h2 WHERE h2.pageId = h1.pageId AND h2.id < h1.id ORDER BY h2.id DESC LIMIT 1), h1.createdAt, '')`)