Important

The SingleStore 9.1 release candidate (RC) is available now. It will be promoted to general availability (GA) soon and at that time it will be renamed to SingleStore 10.

In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10, while SingleStore 9.0 is recommended for production workloads.

SHOW KEYS

Syntax

SHOW KEYS
{FROM | IN} tbl_name
[{FROM | IN} db_name]
[WHERE expr]

Remarks

tbl_name - name of a table in a SingleStore database.
db_name - name of a SingleStore database.
expr - SQL WHERE clause
This command must be run on the master aggregator or a child aggregator node (see Node Requirements for SingleStore Commands).

Output

Column	Description
`Table`	Table name
`Non_unique`	Non-unique
`Key_name`	Key name
`Seq_in_index`	Sequence in the index
`Column_name`	Column name
`Collation`	Collation
`Cardinality`	Cardinality
`Sub_part`	Sub-part
`Packed`	Packed
`Null`	Null
`Index_type`	Index type (see Index)
`Comment`	Comment
`Index_comment`	Comment

Example

SHOW KEYS in mytbl;
+-------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name  | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| mytbl |          1 | seq       |            1 | seq         | NULL      |        NULL |     NULL | NULL   | YES  | BTREE      |         |               |
| mytbl |          1 | seq_index |            1 | seq         | NULL      |        NULL |     NULL | NULL   | YES  | BTREE      |         |               |
+-------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
2 rows in set (0.00 sec)