Merge pull request #28541 from nextcloud/path-prefix-index2

add a prefix index to filecache.path, attempt 2

core/Application.php

@@ -31,6 +31,7 @@
  */
 namespace OC\Core;
 
+use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
 use OC\Authentication\Events\RemoteWipeFinished;
 use OC\Authentication\Events\RemoteWipeStarted;
 use OC\Authentication\Listeners\RemoteWipeActivityListener;
@@ -118,6 +119,10 @@ class Application extends App {
 					if (!$table->hasIndex('fs_id_storage_size')) {
 						$subject->addHintForMissingSubject($table->getName(), 'fs_id_storage_size');
 					}
+
+					if (!$table->hasIndex('fs_storage_path_prefix') && !$schema->getDatabasePlatform() instanceof PostgreSQL94Platform) {
+						$subject->addHintForMissingSubject($table->getName(), 'fs_storage_path_prefix');
+					}
 				}
 
 				if ($schema->hasTable('twofactor_providers')) {

core/Command/Db/AddMissingIndices.php

@@ -33,6 +33,7 @@ declare(strict_types=1);
  */
 namespace OC\Core\Command\Db;
 
+use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
 use OC\DB\Connection;
 use OC\DB\SchemaWrapper;
 use OCP\IDBConnection;
@@ -151,6 +152,13 @@ class AddMissingIndices extends Command {
 				$updated = true;
 				$output->writeln('<info>Filecache table updated successfully.</info>');
 			}
+			if (!$table->hasIndex('fs_storage_path_prefix') && !$schema->getDatabasePlatform() instanceof PostgreSQL94Platform) {
+				$output->writeln('<info>Adding additional path index to the filecache table, this can take some time...</info>');
+				$table->addIndex(['storage', 'path'], 'fs_storage_path_prefix', [], ['lengths' => [null, 64]]);
+				$this->connection->migrateToSchema($schema->getWrappedSchema());
+				$updated = true;
+				$output->writeln('<info>Filecache table updated successfully.</info>');
+			}
 		}
 
 		$output->writeln('<info>Check indices of the twofactor_providers table.</info>');

core/Migrations/Version13000Date20170718121200.php

@@ -31,6 +31,7 @@
  */
 namespace OC\Core\Migrations;
 
+use Doctrine\DBAL\Platforms\PostgreSQL94Platform;
 use OCP\DB\Types;
 use OCP\DB\ISchemaWrapper;
 use OCP\IDBConnection;
@@ -264,6 +265,9 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 			$table->addIndex(['fileid', 'storage', 'size'], 'fs_id_storage_size');
 			$table->addIndex(['mtime'], 'fs_mtime');
 			$table->addIndex(['size'], 'fs_size');
+			if (!$schema->getDatabasePlatform() instanceof PostgreSQL94Platform) {
+				$table->addIndex(['storage', 'path'], 'fs_storage_path_prefix', [], ['lengths' => [null, 64]]);
+			}
 		}
 
 		if (!$schema->hasTable('group_user')) {

lib/private/DB/SchemaWrapper.php

@@ -23,6 +23,8 @@
  */
 namespace OC\DB;
 
+use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Schema\Schema;
 use OCP\DB\ISchemaWrapper;
 
@@ -129,4 +131,15 @@ class SchemaWrapper implements ISchemaWrapper {
 	public function getTables() {
 		return $this->schema->getTables();
 	}
+
+	/**
+	 * Gets the DatabasePlatform for the database.
+	 *
+	 * @return AbstractPlatform
+	 *
+	 * @throws Exception
+	 */
+	public function getDatabasePlatform() {
+		return $this->connection->getDatabasePlatform();
+	}
 }

lib/public/DB/ISchemaWrapper.php

@@ -22,6 +22,9 @@
  */
 namespace OCP\DB;
 
+use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+
 /**
  * Interface ISchemaWrapper
  *
@@ -81,7 +84,7 @@ interface ISchemaWrapper {
 	 * @since 13.0.0
 	 */
 	public function getTableNames();
-	
+
 	/**
 	 * Gets all table names
 	 *
@@ -89,4 +92,14 @@ interface ISchemaWrapper {
 	 * @since 13.0.0
 	 */
 	public function getTableNamesWithoutPrefix();
+
+	/**
+	 * Gets the DatabasePlatform for the database.
+	 *
+	 * @return AbstractPlatform
+	 *
+	 * @throws Exception
+	 * @since 23.0.0
+	 */
+	public function getDatabasePlatform();
 }