| PostgreSQL 8.3.4 Documentation | ||||
|---|---|---|---|---|
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The catalog pg_language registers languages in which you can write functions or stored procedures. See CREATE LANGUAGE and Chapter 37 for more information about language handlers.
Table 44-21. pg_language Columns
| Name | Type | References | Description |
|---|---|---|---|
| lanname | name | Name of the language | |
| lanowner | oid | pg_authid.oid | Owner of the language |
| lanispl | bool | This is false for internal languages (such as SQL) and true for user-defined languages. Currently, pg_dump still uses this to determine which languages need to be dumped, but this might be replaced by a different mechanism in the future | |
| lanpltrusted | bool | True if this is a trusted language, which means that it is believed not to grant access to anything outside the normal SQL execution environment. Only superusers can create functions in untrusted languages | |
| lanplcallfoid | oid | pg_proc.oid | For noninternal languages this references the language handler, which is a special function that is responsible for executing all functions that are written in the particular language |
| lanvalidator | oid | pg_proc.oid | This references a language validator function that is responsible for checking the syntax and validity of new functions when they are created. Zero if no validator is provided |
| lanacl | aclitem[] | Access privileges; see GRANT and REVOKE for details |
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