sql_languages contains one row for
each SQL language binding that is supported by
PostgreSQL supports direct SQL and
embedded SQL in C; that is all you will learn from this table.
This table was removed from the SQL standard in SQL:2008, so there are no entries referring to standards later than SQL:2003.
| The name of the source of the language definition; always
| The year the standard referenced in
| The standard conformance level for the language binding. For
ISO 9075:2003 this is always |
|Always null (This value is relevant to an earlier version of the SQL standard.)|
| The language binding style, either |
| The programming language, if the binding style is