36.46. 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 36.44. 
    
     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. |