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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >pg_language</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="System Catalogs" HREF="catalogs.html"><LINK REL="PREVIOUS" TITLE="pg_inherits" HREF="catalog-pg-inherits.html"><LINK REL="NEXT" TITLE="pg_largeobject" HREF="catalog-pg-largeobject.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="SECT1" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="pg_inherits" HREF="catalog-pg-inherits.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="catalogs.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Chapter 45. System Catalogs</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="pg_largeobject" HREF="catalog-pg-largeobject.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="CATALOG-PG-LANGUAGE" >45.27. <TT CLASS="STRUCTNAME" >pg_language</TT ></A ></H1 ><P > The catalog <TT CLASS="STRUCTNAME" >pg_language</TT > registers languages in which you can write functions or stored procedures. See <A HREF="sql-createlanguage.html" >CREATE LANGUAGE</A > and <A HREF="xplang.html" >Chapter 38</A > for more information about language handlers. </P ><DIV CLASS="TABLE" ><A NAME="AEN91307" ></A ><P ><B >Table 45-27. <TT CLASS="STRUCTNAME" >pg_language</TT > Columns</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><COL><COL><THEAD ><TR ><TH >Name</TH ><TH >Type</TH ><TH >References</TH ><TH >Description</TH ></TR ></THEAD ><TBODY ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanname</TT ></TD ><TD ><TT CLASS="TYPE" >name</TT ></TD ><TD > </TD ><TD >Name of the language</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanowner</TT ></TD ><TD ><TT CLASS="TYPE" >oid</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-authid.html" ><TT CLASS="STRUCTNAME" >pg_authid</TT ></A >.oid</TT ></TD ><TD >Owner of the language</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanispl</TT ></TD ><TD ><TT CLASS="TYPE" >bool</TT ></TD ><TD > </TD ><TD > This is false for internal languages (such as <ACRONYM CLASS="ACRONYM" >SQL</ACRONYM >) and true for user-defined languages. Currently, <SPAN CLASS="APPLICATION" >pg_dump</SPAN > still uses this to determine which languages need to be dumped, but this might be replaced by a different mechanism in the future. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanpltrusted</TT ></TD ><TD ><TT CLASS="TYPE" >bool</TT ></TD ><TD > </TD ><TD > 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. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanplcallfoid</TT ></TD ><TD ><TT CLASS="TYPE" >oid</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-proc.html" ><TT CLASS="STRUCTNAME" >pg_proc</TT ></A >.oid</TT ></TD ><TD > 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 </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >laninline</TT ></TD ><TD ><TT CLASS="TYPE" >oid</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-proc.html" ><TT CLASS="STRUCTNAME" >pg_proc</TT ></A >.oid</TT ></TD ><TD > This references a function that is responsible for executing <SPAN CLASS="QUOTE" >"inline"</SPAN > anonymous code blocks (<A HREF="sql-do.html" >DO</A > blocks). Zero if inline blocks are not supported. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanvalidator</TT ></TD ><TD ><TT CLASS="TYPE" >oid</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-proc.html" ><TT CLASS="STRUCTNAME" >pg_proc</TT ></A >.oid</TT ></TD ><TD > 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. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >lanacl</TT ></TD ><TD ><TT CLASS="TYPE" >aclitem[]</TT ></TD ><TD > </TD ><TD > Access privileges; see <A HREF="sql-grant.html" >GRANT</A > and <A HREF="sql-revoke.html" >REVOKE</A > for details </TD ></TR ></TBODY ></TABLE ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="catalog-pg-inherits.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="catalog-pg-largeobject.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><TT CLASS="STRUCTNAME" >pg_inherits</TT ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="catalogs.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><TT CLASS="STRUCTNAME" >pg_largeobject</TT ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >