diff --git a/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
index 9130620..404cbb2 100644
--- a/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
@@ -702,12 +702,16 @@ public function fieldSetNoDefault($table, $field) {
   public function findTables($table_expression) {
     $tables = [];
 
-    // Try to find tables in all attached databases.
+    // The SQLite implementation doesn't need to use the same filtering strategy
+    // as the parent one because individually prefixed tables live in their own
+    // schema (database), which means that neither the main database nor any
+    // attached one will contain a prefixed table name, so we just need to loop
+    // over all known schemas and filter by the user-supplied table expression.
     $attached_dbs = $this->connection->getAttachedDatabases();
     foreach ($attached_dbs as $schema) {
-      // Can't use query placeholders for the schema because the query would have
-      // to be :prefixsqlite_master, which does not work. We also need to ignore
-      // the internal SQLite tables.
+      // Can't use query placeholders for the schema because the query would
+      // have to be :prefixsqlite_master, which does not work. We also need to
+      // ignore the internal SQLite tables.
       $result = db_query("SELECT name FROM " . $schema . ".sqlite_master WHERE type = :type AND name LIKE :table_name AND name NOT LIKE :pattern", array(
         ':type' => 'table',
         ':table_name' => $table_expression,