Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|
| id | INT | 10 | √ | null |
|
|
Primary id for this table. This uniquely identifies the row. |
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| mapfeaturetype_id | INT | 10 | null |
|
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Foreign key to mapfeaturetypes (mapfeaturetypes.id). |
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| marker_id | INT | 10 | null |
|
|
Foreign key to markers (markers.id). |
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| map_id | INT | 10 | null |
|
|
Foreign key to maps (maps.id). |
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| definition_start | DOUBLE | 64,10 | null |
|
|
Used if the markers location spans over an area more than a single point on the maps. Determines the marker start location. |
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| definition_end | DOUBLE | 64,10 | √ | null |
|
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Used if the markers location spans over an area more than a single point on the maps. Determines the marker end location. |
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| chromosome | VARCHAR | 255 | null |
|
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The chromosome/linkage group that this marker is found on. |
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| arm_impute | VARCHAR | 255 | √ | null |
|
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If a chromosome arm is available then this can be entered here. |
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| created_on | DATETIME | 26 | √ | CURRENT_TIMESTAMP |
|
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When the record was created. |
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| updated_on | TIMESTAMP | 26 | √ | CURRENT_TIMESTAMP |
|
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When the record was updated. This may be different from the created on date if subsequent changes have been made to the underlying record. |
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| PRIMARY | Primary key | Asc | id |
| map_id | Performance | Asc | map_id |
| mapfeaturetype_id | Performance | Asc | mapfeaturetype_id |
| marker_id | Performance | Asc | marker_id |
| marker_id_2 | Performance | Asc/Asc | marker_id + map_id |