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36.45. 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 36.43. 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.

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36.44. sql_implementation_info

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