Revert "add a prefix index to filecache.path"

core/Application.php

@@ -112,10 +112,6 @@ class Application extends App {
 					if (!$table->hasIndex('fs_size')) {
 						$subject->addHintForMissingSubject($table->getName(), 'fs_size');
 					}
-
-					if (!$table->hasIndex('fs_path_prefix')) {
-						$subject->addHintForMissingSubject($table->getName(), 'fs_path_prefix');
-					}
 				}
 
 				if ($schema->hasTable('twofactor_providers')) {

core/Command/Db/AddMissingIndices.php

@@ -144,13 +144,6 @@ class AddMissingIndices extends Command {
 				$updated = true;
 				$output->writeln('<info>Filecache table updated successfully.</info>');
 			}
-			if (!$table->hasIndex('fs_path_prefix')) {
-				$output->writeln('<info>Adding additional path index to the filecache table, this can take some time...</info>');
-				$table->addIndex(['size'], 'fs_path_prefix', [], ["lengths" => [128]]);
-				$this->connection->migrateToSchema($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

@@ -262,7 +262,6 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 			$table->addIndex(['storage', 'size', 'fileid'], 'fs_storage_size');
 			$table->addIndex(['mtime'], 'fs_mtime');
 			$table->addIndex(['size'], 'fs_size');
-			$table->addIndex(['path'], 'fs_path_prefix', [], ["lengths" => [128]]);
 		}
 
 		if (!$schema->hasTable('group_user')) {