Merge pull request rails#43549 from cgriego/no-select-all-from-information-schema-tables

Don't `SELECT * FROM information_schema.tables`

Author: kamipo

activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb

@@ -206,7 +206,7 @@ def add_options_for_index_columns(quoted_columns, **options)
           def data_source_sql(name = nil, type: nil)
             scope = quoted_scope(name, type: type)
 
-            sql = +"SELECT table_name FROM (SELECT * FROM information_schema.tables "
+            sql = +"SELECT table_name FROM (SELECT table_name, table_type FROM information_schema.tables "
             sql << " WHERE table_schema = #{scope[:schema]}) _subquery"
             if scope[:type] || scope[:name]
               conditions = []