The table sql_packages contains information about which feature packages defined in the SQL standard are supported by PostgreSQL . Refer to Appendix D for background information on feature packages.
Table 34-44. sql_packages Columns
|feature_id||character_data||Identifier string of the package|
|feature_name||character_data||Descriptive name of the package|
|is_supported||yes_or_no||YES if the package 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 package|