PostgreSQL 7.4 Documentation
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# 32.30. 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.

Table 32-28. 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; currently 1999
sql_language_comformance | `character_data` | The standard conformance level for the language binding. For ISO 9075:1999 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.

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