Not implemented `SELECT INTO`

[r4ntix]

Describe the bug

Currently we do not support SELECT INTO, but the SQL does not report errors and does not execute correctly:

❯ select table_catalog, table_schema into test from information_schema.tables;
+---------------+--------------------+
| table_catalog | table_schema       |
+---------------+--------------------+
| datafusion    | information_schema |
| datafusion    | information_schema |
| datafusion    | information_schema |
| datafusion    | information_schema |
+---------------+--------------------+
4 rows in set. Query took 0.002 seconds.

❯ explain select table_catalog, table_schema into test from information_schema.tables;
+---------------+-------------------------------------------------------------------------------+
| plan_type     | plan                                                                          |
+---------------+-------------------------------------------------------------------------------+
| logical_plan  | TableScan: information_schema.tables projection=[table_catalog, table_schema] |
| physical_plan | ExecutionPlan(PlaceHolder)                                                    |
|               |                                                                               |
+---------------+-------------------------------------------------------------------------------+
2 rows in set. Query took 0.003 seconds.

❯ show tables;
+---------------+--------------------+-------------+------------+
| table_catalog | table_schema       | table_name  | table_type |
+---------------+--------------------+-------------+------------+
| datafusion    | information_schema | tables      | VIEW       |
| datafusion    | information_schema | views       | VIEW       |
| datafusion    | information_schema | columns     | VIEW       |
| datafusion    | information_schema | df_settings | VIEW       |
+---------------+--------------------+-------------+------------+
4 rows in set. Query took 0.002 seconds.

To Reproduce

👆

Expected behavior

No response

Additional context

If we don't support it now, the SQL execution can return NotImplemented.