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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 >SPI_cursor_fetch</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="SPI_cursor_find" HREF="spi-spi-cursor-find.html"><LINK REL="NEXT" TITLE="SPI_cursor_move" HREF="spi-spi-cursor-move.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="SPI_cursor_find" HREF="spi-spi-cursor-find.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_cursor_move" HREF="spi-spi-cursor-move.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SPI-SPI-CURSOR-FETCH" ></A >SPI_cursor_fetch</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN61266" ></A ><H2 >Name</H2 >SPI_cursor_fetch -- fetch some rows from a cursor</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN61271" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >void SPI_cursor_fetch(Portal <TT CLASS="PARAMETER" >portal</TT >, bool <TT CLASS="PARAMETER" >forward</TT >, long <TT CLASS="PARAMETER" >count</TT >)</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN61276" ></A ><H2 >Description</H2 ><P > <CODE CLASS="FUNCTION" >SPI_cursor_fetch</CODE > fetches some rows from a cursor. This is equivalent to a subset of the SQL command <TT CLASS="COMMAND" >FETCH</TT > (see <CODE CLASS="FUNCTION" >SPI_scroll_cursor_fetch</CODE > for more functionality). </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN61282" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="LITERAL" >Portal <TT CLASS="PARAMETER" >portal</TT ></TT ></DT ><DD ><P > portal containing the cursor </P ></DD ><DT ><TT CLASS="LITERAL" >bool <TT CLASS="PARAMETER" >forward</TT ></TT ></DT ><DD ><P > true for fetch forward, false for fetch backward </P ></DD ><DT ><TT CLASS="LITERAL" >long <TT CLASS="PARAMETER" >count</TT ></TT ></DT ><DD ><P > maximum number of rows to fetch </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN61303" ></A ><H2 >Return Value</H2 ><P > <TT CLASS="VARNAME" >SPI_processed</TT > and <TT CLASS="VARNAME" >SPI_tuptable</TT > are set as in <CODE CLASS="FUNCTION" >SPI_execute</CODE > if successful. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN61309" ></A ><H2 >Notes</H2 ><P > Fetching backward may fail if the cursor's plan was not created with the <TT CLASS="SYMBOL" >CURSOR_OPT_SCROLL</TT > option. </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="spi-spi-cursor-find.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-cursor-move.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SPI_cursor_find</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_cursor_move</TD ></TR ></TABLE ></DIV ></BODY ></HTML >