Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|
| id | serial | 10 | √ | nextval('zone.device_attribute_id_seq'::regclass) |
|
|
Unique identifier for device_attribute record |
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| zone_id | int4 | 10 | null |
|
|
Zone Id of a device_attribute record. It maps to zone.id column |
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| device_id | int4 | 10 | null |
|
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Id of a device this attribute belongs to. It maps to device.id |
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| attributetype_id | int4 | 10 | null |
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Id that denotes what type of attribute this record indicates. It maps to system.attributetype.id column. Example values for attributetypes - cifsName, sysDescr, serialNumber. |
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| attribute_id | int4 | 10 | √ | null |
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Id of attribute this mapping represents. It maps to zone.attribute.id |
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| attribute_cidr_id | int4 | 10 | √ | null |
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Id of CIDR that represents device_attribute record. It is mainly populated for ASName attributetype but can be used for any attribute that would contain a cidr. It maps to system.attribute_cidr.id |
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| last_update | timestamp | 29,6 | √ | now() |
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|
The most recent time when a device has responded with given attribute. It gets updated with curren timestamp everytime device response is received for an attribute. |
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Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| pk_devattr | Primary key | Asc | id |
| idx_device_attribute_attribute_id | Performance | Asc | attribute_id |
| idx_device_attribute_attributetype_id | Performance | Asc | attributetype_id |
| idx_device_attribute_device_id | Performance | Asc | device_id |
| idx_device_attribute_devtype | Performance | Asc/Asc | device_id + attributetype_id |
| uk_devattr | Must be unique | Asc/Asc/Asc/Asc | zone_id + device_id + attributetype_id + attribute_id |
Relationships
Close relationships within degrees of separation
