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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_prepared_statements</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_locks" HREF="view-pg-locks.html"><LINK REL="NEXT" TITLE="pg_prepared_xacts" HREF="view-pg-prepared-xacts.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_locks" HREF="view-pg-locks.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_prepared_xacts" HREF="view-pg-prepared-xacts.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="VIEW-PG-PREPARED-STATEMENTS" >45.59. <TT CLASS="STRUCTNAME" >pg_prepared_statements</TT ></A ></H1 ><P > The <TT CLASS="STRUCTNAME" >pg_prepared_statements</TT > view displays all the prepared statements that are available in the current session. See <A HREF="sql-prepare.html" >PREPARE</A > for more information about prepared statements. </P ><P > <TT CLASS="STRUCTNAME" >pg_prepared_statements</TT > contains one row for each prepared statement. Rows are added to the view when a new prepared statement is created and removed when a prepared statement is released (for example, via the <A HREF="sql-deallocate.html" >DEALLOCATE</A > command). </P ><DIV CLASS="TABLE" ><A NAME="AEN94516" ></A ><P ><B >Table 45-60. <TT CLASS="STRUCTNAME" >pg_prepared_statements</TT > Columns</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><COL><THEAD ><TR ><TH >Name</TH ><TH >Type</TH ><TH >Description</TH ></TR ></THEAD ><TBODY ><TR ><TD ><TT CLASS="STRUCTFIELD" >name</TT ></TD ><TD ><TT CLASS="TYPE" >text</TT ></TD ><TD > The identifier of the prepared statement </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >statement</TT ></TD ><TD ><TT CLASS="TYPE" >text</TT ></TD ><TD > The query string submitted by the client to create this prepared statement. For prepared statements created via SQL, this is the <TT CLASS="COMMAND" >PREPARE</TT > statement submitted by the client. For prepared statements created via the frontend/backend protocol, this is the text of the prepared statement itself. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >prepare_time</TT ></TD ><TD ><TT CLASS="TYPE" >timestamptz</TT ></TD ><TD > The time at which the prepared statement was created </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >parameter_types</TT ></TD ><TD ><TT CLASS="TYPE" >regtype[]</TT ></TD ><TD > The expected parameter types for the prepared statement in the form of an array of <TT CLASS="TYPE" >regtype</TT >. The OID corresponding to an element of this array can be obtained by casting the <TT CLASS="TYPE" >regtype</TT > value to <TT CLASS="TYPE" >oid</TT >. </TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >from_sql</TT ></TD ><TD ><TT CLASS="TYPE" >boolean</TT ></TD ><TD > <TT CLASS="LITERAL" >true</TT > if the prepared statement was created via the <TT CLASS="COMMAND" >PREPARE</TT > SQL statement; <TT CLASS="LITERAL" >false</TT > if the statement was prepared via the frontend/backend protocol </TD ></TR ></TBODY ></TABLE ></DIV ><P > The <TT CLASS="STRUCTNAME" >pg_prepared_statements</TT > view is read only. </P ></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="view-pg-locks.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="view-pg-prepared-xacts.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><TT CLASS="STRUCTNAME" >pg_locks</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_prepared_xacts</TT ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >