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'\" t .\" Title: SPI_saveplan .\" Author: The PostgreSQL Global Development Group .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> .\" Date: 2017-11-06 .\" Manual: PostgreSQL 9.2.24 Documentation .\" Source: PostgreSQL 9.2.24 .\" Language: English .\" .TH "SPI_SAVEPLAN" "3" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 Documentation" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" SPI_saveplan \- save a prepared statement .\" SPI_saveplan .SH "SYNOPSIS" .sp .nf SPIPlanPtr SPI_saveplan(SPIPlanPtr \fIplan\fR) .fi .SH "DESCRIPTION" .PP \fBSPI_saveplan\fR copies a passed statement (prepared by \fBSPI_prepare\fR) into memory that will not be freed by \fBSPI_finish\fR nor by the transaction manager, and returns a pointer to the copied statement\&. This gives you the ability to reuse prepared statements in the subsequent invocations of your procedure in the current session\&. .SH "ARGUMENTS" .PP SPIPlanPtr \fIplan\fR .RS 4 the prepared statement to be saved .RE .SH "RETURN VALUE" .PP Pointer to the copied statement; or NULL if unsuccessful\&. On error, \fISPI_result\fR is set thus: .PP SPI_ERROR_ARGUMENT .RS 4 if \fIplan\fR is NULL or invalid .RE .PP SPI_ERROR_UNCONNECTED .RS 4 if called from an unconnected procedure .RE .SH "NOTES" .PP The originally passed\-in statement is not freed, so you might wish to do \fBSPI_freeplan\fR on it to avoid leaking memory until \fBSPI_finish\fR\&. .PP In most cases, \fBSPI_keepplan\fR is preferred to this function, since it accomplishes largely the same result without needing to physically copy the prepared statement\*(Aqs data structures\&.
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