UglyWillDuckling

diff --git a/Declaration/Schema/Comparator.php b/Declaration/Schema/Comparator.php
--- a/Setup/Declaration/Schema/Comparator.php
+++ b/Setup/Declaration/Schema/Comparator.php
@@ -24,7 +24,39 @@
      */
     public function compare(ElementInterface $first, ElementInterface $second)
     {
+        // Code below pulled from https://github.com/magento/magento2/issues/19597#issuecomment-463611130
+        //Ugly patch (MariaDB compatibility)
+        $firstParams = $first->getDiffSensitiveParams();

UglyWillDuckling

select rd.review_id,  rd.customer_id, r.entity_pk_value, r.created_at, count(*) as c from review r
      inner join review_detail rd on rd.review_id = r.review_id

group by entity_pk_value, rd.customer_id, rd.detail
having c > 1
;