true Michael, pasting the output :
CREATE TABLE `WF_1` (
`id` varchar(255) NOT NULL,
`app_name` varchar(255) DEFAULT NULL,
`app_path` varchar(255) DEFAULT NULL,
`conf` text,
`group_name` varchar(255) DEFAULT NULL,
`parent_id` varchar(255) DEFAULT NULL,
`run` int(11) DEFAULT NULL,
`user_name` varchar(255) DEFAULT NULL,
`bean_type` varchar(31) DEFAULT NULL,
`auth_token` text,
`created_time` datetime DEFAULT NULL,
`end_time` datetime DEFAULT NULL,
`external_id` varchar(255) DEFAULT NULL,
`last_modified_time` datetime DEFAULT NULL,
`log_token` varchar(255) DEFAULT NULL,
`proto_action_conf` text,
`sla_xml` text,
`start_time` datetime DEFAULT NULL,
`status` varchar(255) DEFAULT NULL,
`wf_instance` mediumblob,
PRIMARY KEY (`id`),
KEY `I_WF_1_DTYPE` (`bean_type`),
KEY `I_WF_1_END_TIME` (`end_time`),
KEY `I_WF_1_EXTERNAL_ID` (`external_id`),
KEY `I_WF_1_LAST_MODIFIED_TIME` (`last_modified_time`),
KEY `I_WF_1_STATUS` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
show indexes from WF_1;
+---------+------------+------------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+
| Table | Non_unique | Key_name | Seq_in_index |
Column_name | Collation | Cardinality | Sub_part | Packed | Null |
Index_type | Comment |
+---------+------------+------------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+
|WF_1 | 0 | PRIMARY | 1 | id
| A | 551664 | NULL | NULL | | BTREE
| |
|WF_1 | 1 | I_WF_1_DTYPE | 1 | bean_type
| A | 18 | NULL | NULL | YES | BTREE |
|
|WF_1 | 1 | I_WF_1_END_TIME | 1 | end_time
| A | 551664 | NULL | NULL | YES | BTREE |
|
|WF_1 | 1 | I_WF_1_EXTERNAL_ID | 1 | external_id
| A | 551664 | NULL | NULL | YES | BTREE |
|
|WF_1 | 1 | I_WF_1_LAST_MODIFIED_TIME | 1 |
last_modified_time | A | 551664 | NULL | NULL | YES |
BTREE | |
|WF_1 | 1 | I_WF_1_STATUS | 1 | status
| A | 18 | NULL | NULL | YES | BTREE |
|
+---------+------------+------------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+
Thanks
On Wed, Sep 5, 2012 at 8:43 PM, Michael Dykman <mdyk...@gmail.com> wrote:
> The attachments do not appear to be coming through.
>
> I am more curious what the cardinality of bean_type is. What is the
> result of
> select count(*) as cnt, bean_type from WS_1 group by bean_type ?
>
> Low cardinality can render an index usrless.
>
> On 2012-09-05 5:19 AM, "Adarsh Sharma" <eddy.ada...@gmail.com> wrote:
>
> I already attached the list.
>
> Attaching one more time & thanks for the interest.
>
> Cheers
>
>
>
> On Wed, Sep 5, 2012 at 11:44 AM, Manuel Arostegui <man...@tuenti.com>
> wrote:
> >
> >
> >
> > 2012/9/5 Adar...
>
>
>
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