ok
Direktori : /opt/alt/postgresql11/usr/share/doc/alt-postgresql11-9.2.24/html/ |
Current File : //opt/alt/postgresql11/usr/share/doc/alt-postgresql11-9.2.24/html/spi-spi-connect.html |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >SPI_connect</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="Interface Functions" HREF="spi-interface.html"><LINK REL="PREVIOUS" TITLE="Interface Functions" HREF="spi-interface.html"><LINK REL="NEXT" TITLE="SPI_finish" HREF="spi-spi-finish.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="REFENTRY" ><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="Interface Functions" HREF="spi-interface.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="spi-interface.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="SPI_finish" HREF="spi-spi-finish.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SPI-SPI-CONNECT" ></A >SPI_connect</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN60000" ></A ><H2 >Name</H2 >SPI_connect -- connect a procedure to the SPI manager</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN60005" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >int SPI_connect(void)</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN60007" ></A ><H2 >Description</H2 ><P > <CODE CLASS="FUNCTION" >SPI_connect</CODE > opens a connection from a procedure invocation to the SPI manager. You must call this function if you want to execute commands through SPI. Some utility SPI functions can be called from unconnected procedures. </P ><P > If your procedure is already connected, <CODE CLASS="FUNCTION" >SPI_connect</CODE > will return the error code <SPAN CLASS="RETURNVALUE" >SPI_ERROR_CONNECT</SPAN >. This could happen if a procedure that has called <CODE CLASS="FUNCTION" >SPI_connect</CODE > directly calls another procedure that calls <CODE CLASS="FUNCTION" >SPI_connect</CODE >. While recursive calls to the <ACRONYM CLASS="ACRONYM" >SPI</ACRONYM > manager are permitted when an SQL command called through SPI invokes another function that uses <ACRONYM CLASS="ACRONYM" >SPI</ACRONYM >, directly nested calls to <CODE CLASS="FUNCTION" >SPI_connect</CODE > and <CODE CLASS="FUNCTION" >SPI_finish</CODE > are forbidden. (But see <CODE CLASS="FUNCTION" >SPI_push</CODE > and <CODE CLASS="FUNCTION" >SPI_pop</CODE >.) </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN60022" ></A ><H2 >Return Value</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="SYMBOL" >SPI_OK_CONNECT</TT ></DT ><DD ><P > on success </P ></DD ><DT ><TT CLASS="SYMBOL" >SPI_ERROR_CONNECT</TT ></DT ><DD ><P > on error </P ></DD ></DL ></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="spi-interface.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="spi-spi-finish.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Interface Functions</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="spi-interface.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SPI_finish</TD ></TR ></TABLE ></DIV ></BODY ></HTML >