Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments |
|---|---|---|---|---|---|---|---|---|
| id | int4 | 10 | √ | null |
|
|
||
| currency | bpchar | 3 | √ | null |
|
|
Currency code |
|
| rate_type | bpchar | 1 | √ | 'N'::bpchar |
|
|
N = Bank Note, T = Travel Cheque |
|
| start_date | date | 13 | √ | null |
|
|
||
| end_date | date | 13 | √ | null |
|
|
||
| description | text | 2147483647 | √ | null |
|
|
||
| rate | t_money | 15,2 | √ | null |
|
|
||
| unit | int4 | 10 | √ | 1 |
|
|
||
| update_time | timestamptz | 35,6 | √ | CURRENT_TIMESTAMP |
|
|
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| exchange_rate_pkey | Primary key | Asc | id |
| exchange_rate_currency_ratetype_date_unq | Must be unique | Asc/Asc/Asc | currency + rate_type + start_date |
Relationships
Close relationships within degrees of separation
