## 52.29. `pg_language`[]() The catalog `pg_language` registers languages in which you can write functions or stored procedures. See [CREATE LANGUAGE](sql-createlanguage.html) and [Chapter 42](xplang.html) for more information about language handlers.**Table 52.29. `pg_language` Columns**| Column Type<br/><br/> Description ||----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|| `oid``oid`<br/><br/> Row identifier || `lanname``name`<br/><br/> Name of the language || `lanowner``oid` (references [`pg_authid`](catalog-pg-authid.html).`oid`)<br/><br/> Owner of the language || `lanispl``bool`<br/><br/> 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`<br/><br/> 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` (references [`pg_proc`](catalog-pg-proc.html).`oid`)<br/><br/> 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. Zero for internal languages.|| `laninline``oid` (references [`pg_proc`](catalog-pg-proc.html).`oid`)<br/><br/> This references a function that is responsible for executing “inline” anonymous code blocks ([DO](sql-do.html) blocks). Zero if inline blocks are not supported. || `lanvalidator``oid` (references [`pg_proc`](catalog-pg-proc.html).`oid`)<br/><br/> 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[]`<br/><br/> Access privileges; see [Section 5.7](ddl-priv.html) for details |
