Important
New database features are no longer connected to engine versions; features are now enabled independently during scheduled update windows, and “major” and “minor” releases no longer exist in Helios. Please visit the release notes to view the latest features available in your database clusters.
SHOW KEYS
On this page
Show the list of keys associated with a given table.
Syntax
SHOW KEYS
{FROM | IN} tbl_name
[{FROM | IN} db_name]
[WHERE expr]Remarks
-
tbl_- name of a table in a SingleStore Helios database.name -
db_- name of a SingleStore Helios database.name -
expr- SQL WHERE clause
Output
|
Column |
Description |
|---|---|
|
|
Table name |
|
|
Non-unique |
|
|
Key name |
|
|
Sequence in the index |
|
|
Column name |
|
|
Collation |
|
|
Cardinality |
|
|
Sub-part |
|
|
Packed |
|
|
Null |
|
|
Index type (see 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)Last modified: