sql_languages
The table sql_languages contains one row for
each SQL language binding that is supported by
PostgreSQL.
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.
Table 37.44. sql_languages Columns
| Name | Data Type | Description |
|---|---|---|
sql_language_source | character_data |
The name of the source of the language definition; always
ISO 9075, that is, the SQL standard
|
sql_language_year | character_data |
The year the standard referenced in
sql_language_source was approved.
|
sql_language_conformance | character_data |
The standard conformance level for the language binding. For
ISO 9075:2003 this is always CORE.
|
sql_language_integrity | character_data | Always null (This value is relevant to an earlier version of the SQL standard.) |
sql_language_implementation | character_data | Always null |
sql_language_binding_style | character_data |
The language binding style, either DIRECT or
EMBEDDED
|
sql_language_programming_language | character_data |
The programming language, if the binding style is
EMBEDDED, else null. PostgreSQL only
supports the language C.
|