PostgreSQL 9.1 文档 · 45.27. pg

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45.27. `pg_language`
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45.27. `pg_language` #

目录pg_language注册了可用于编写函数或存储过程的语言。更多关于语言处理器的信息请参阅CREATE LANGUAGE和第 38 章。

表 45.27. pg_language 列

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
`laninline`	`oid`	`pg_proc.oid`	This references a function that is responsible for executing “inline” anonymous code blocks (DO blocks). Zero if inline blocks are not supported.
`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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