Contains information about all columns of all streams.
| Column | Type | Description |
|---|---|---|
| usename | string | Hard-coded as "user". |
| relname | string | The name of the stream that contains columns described by this row. |
| attname | string | The name of the column described by this row. |
| attypid | integer | The internal PostgreSQL value representing the type of this column. Valid values:
|
| attnum | integer | The position of this column in the schema, starting from 0. |