diff --git a/app/code/Magento/SalesRule/Model/ResourceModel/Rule/DateApplier.php b/app/code/Magento/SalesRule/Model/ResourceModel/Rule/DateApplier.php
index 924a998db929d..b38316c0bbfca 100644
--- a/app/code/Magento/SalesRule/Model/ResourceModel/Rule/DateApplier.php
+++ b/app/code/Magento/SalesRule/Model/ResourceModel/Rule/DateApplier.php
@@ -24,7 +24,7 @@ public function applyDate($select, $now)
             'main_table.from_date is null or main_table.from_date <= ?',
             $now
         )->where(
-            'main_table.to_date is null or main_table.to_date >= ?',
+            'main_table.`to_date` is null or main_table.`to_date` >= ?',
             $now
         );
     }
diff --git a/lib/internal/Magento/Framework/Data/Collection/AbstractDb.php b/lib/internal/Magento/Framework/Data/Collection/AbstractDb.php
index c792c83d6b868..931c75b0d6813 100644
--- a/lib/internal/Magento/Framework/Data/Collection/AbstractDb.php
+++ b/lib/internal/Magento/Framework/Data/Collection/AbstractDb.php
@@ -289,7 +289,10 @@ abstract class AbstractDb extends \Magento\Framework\Data\Collection
         'WIDTH_BUCKET' => 898, 'WINDOW' => 899, 'WITH' => 900, 'WITHIN' => 901, 'WITHIN_GROUP' => 902,
         'WITHOUT' => 903, 'WLM' => 904, 'WORK' => 905, 'WRITE' => 906, 'WRITETEXT' => 907,
         'XMLCAST' => 908, 'XMLEXISTS' => 909, 'XMLNAMESPACES' => 910, 'XOR' => 911, 'YEAR' => 912,
-        'YEAR_MONTH' => 913, 'YEARS' => 914, 'ZEROFILL' => 915, 'ZEROIFNULL' => 916, 'ZONE' => 917
+        'YEAR_MONTH' => 913, 'YEARS' => 914, 'ZEROFILL' => 915, 'ZEROIFNULL' => 916, 'ZONE' => 917,
+        // Recent MariaDB reserved parser keywords (unquoted use raises ERROR 1064):
+        // VECTOR (11.6), ST_COLLECT (11.8), CONVERSION and TO_DATE (12.2).
+        'VECTOR' => 918, 'ST_COLLECT' => 919, 'CONVERSION' => 920, 'TO_DATE' => 921
     ];
 
     /**