Change sql to show columns index

[shoma]

Update show index results

+-------------------------+---------------------+-------------+--------------+--------------+-------------+-----------------+-------------------+-----------+------------------+-------------+
| TABLE_NAME              | INDEX_NAME          | INDEX_TYPE  | COLUMN_NAME  | SPANNER_TYPE | IS_NULLABLE | COLUMN_ORDERING | PARENT_TABLE_NAME | IS_UNIQUE | IS_NULL_FILTERED | INDEX_STATE |
+-------------------------+---------------------+-------------+--------------+--------------+-------------+-----------------+-------------------+-----------+------------------+-------------+

Fix to find show index command with show\s\sindex