The table sql_parts contains information about which of the several parts of the SQL standard are supported by PostgreSQL.
Table 34-45. sql_parts Columns
|feature_id||character_data||An identifier string containing the number of the part|
|feature_name||character_data||Descriptive name of the part|
|is_supported||yes_or_no||YES if the part 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 part|
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