| feature_id | character_data | Identifier string of the feature |
| feature_name | character_data | Descriptive name of the feature |
| sub_feature_id | character_data | Identifier string of the subfeature, or a zero-length string if not a subfeature |
| sub_feature_name | character_data | Descriptive name of the subfeature, or a zero-length string if not a subfeature |
| is_supported | character_data | YES if the feature is fully supported by the
current version of PostgreSQL, NO if not
|
| is_verified_by | character_data | Always null, since the PostgreSQL development group does not
perform formal testing of feature conformance
|
| comments | character_data | Possibly a comment about the supported status of the feature |
