fixup! fixup! fixup! fixup! fixup! fixup! fixup! fix: add handling for MD5 on new MySQL and deprecate MD5 SQL function

Author: susnux

lib/private/Setup/MySQL.php

@@ -48,8 +48,15 @@ public function setupDatabase(): void {
 			$version = $row['Value'];
 			[$major, ] = explode('.', strtolower($version));
 			if ((int)$major >= 9) {
-				$statement = $connection->prepare("INSTALL COMPONENT 'file://component_classic_hashing';");
-				$statement->executeStatement();
+				// check if the component is already loaded, if not load it
+				$statement = $connection->prepare("SELECT COUNT(*) FROM mysql.component WHERE component_urn = 'file://component_classic_hashing';");
+				$result = $statement->executeQuery();
+				$count = $result->fetchOne();
+				if ($count !== false && (int)$count === 0) {
+					// not yet loaded
+					$statement = $connection->prepare("INSTALL COMPONENT 'file://component_classic_hashing';");
+					$statement->executeStatement();
+				}
 			}
 		}