Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|
| lith_id | serial | 10 | √ | nextval('dic_lithology_lith_id_seq'::regclass) |
|
|
PK. Unique identifier. Generated by database |
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| lith_name | varchar | 100 | √ | null |
|
|
Lithological name e.g. shale, mudstone |
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| lith_type | varchar | 50 | √ | null |
|
|
Lithological type e.g. siliciclastic, carbonate, chemical |
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| lith_class | varchar | 50 | √ | null |
|
|
Lithological class e.g. sedimentary, metamorphic |
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| timestamp_created | timestamptz | 35,6 | √ | now() |
|
|
||||
| timestamp_modified | timestamptz | 35,6 | √ | now() |
|
|
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| lith_id | Primary key | Asc | lith_id |
| lith_class_lower_idx | Performance | ||
| lith_name_lower_idx | Performance | ||
| lith_type_lower_idx | Performance |
Relationships
Close relationships within degrees of separation
