diff --git a/model/connect/MySQLSchemaManager.php b/model/connect/MySQLSchemaManager.php
index 5881e2426..85157de58 100644
--- a/model/connect/MySQLSchemaManager.php
+++ b/model/connect/MySQLSchemaManager.php
@@ -125,9 +125,16 @@ class MySQLSchemaManager extends DBSchemaManager {
 	}
 
 	public function checkAndRepairTable($tableName) {
+		// Flag to ensure we only send the warning about PDO + native mode once
+		static $pdo_warning_sent = false;
+
 		// If running PDO and not in emulated mode, check table will fail
 		if($this->database->getConnector() instanceof PDOConnector && !PDOConnector::is_emulate_prepare()) {
-			$this->alterationMessage('CHECK TABLE command disabled for PDO in native mode', 'notice');
+			if (!$pdo_warning_sent) {
+				$this->alterationMessage('CHECK TABLE command disabled for PDO in native mode', 'notice');
+				$pdo_warning_sent = true;
+			}
+
 			return true;
 		}