Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|
| prey_id | serial | 10 | √ | nextval('examples.prey_prey_id_seq'::regclass) |
|
|
||||
| predator_id | int4 | 10 | null |
|
|
The stomach this sample was found in |
||||
| species_id | int8 | 19 | √ | null |
|
|
||||
| digestion_stage_id | int4 | 10 | √ | null |
|
|
Digestion stage |
|||
| length | float4 | 8,8 | √ | null |
|
|
Length of prey / mean length of all prey |
|||
| weight | float4 | 8,8 | √ | null |
|
|
Weight of prey / mean weight of all prey |
|||
| count | float8 | 17,17 | √ | 1 |
|
|
Number of prey meeting this criteria |
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| prey_pkey | Primary key | Asc | prey_id |
Relationships
Close relationships within degrees of separation
