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.\"     Title: SPI_cursor_open_with_args
.\"    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_CURSOR_OPEN_WITH_ARGS" "3" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 Documentation"
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.SH "NAME"
SPI_cursor_open_with_args \- set up a cursor using a query and parameters
.\" SPI_cursor_open_with_args
.SH "SYNOPSIS"
.sp
.nf
Portal SPI_cursor_open_with_args(const char *\fIname\fR,
                                 const char *\fIcommand\fR,
                                 int \fInargs\fR, Oid *\fIargtypes\fR,
                                 Datum *\fIvalues\fR, const char *\fInulls\fR,
                                 bool \fIread_only\fR, int \fIcursorOptions\fR)
.fi
.SH "DESCRIPTION"
.PP
\fBSPI_cursor_open_with_args\fR
sets up a cursor (internally, a portal) that will execute the specified query\&. Most of the parameters have the same meanings as the corresponding parameters to
\fBSPI_prepare_cursor\fR
and
\fBSPI_cursor_open\fR\&.
.PP
For one\-time query execution, this function should be preferred over
\fBSPI_prepare_cursor\fR
followed by
\fBSPI_cursor_open\fR\&. If the same command is to be executed with many different parameters, either method might be faster, depending on the cost of re\-planning versus the benefit of custom plans\&.
.PP
The passed\-in parameter data will be copied into the cursor\*(Aqs portal, so it can be freed while the cursor still exists\&.
.SH "ARGUMENTS"
.PP
const char * \fIname\fR
.RS 4
name for portal, or
NULL
to let the system select a name
.RE
.PP
const char * \fIcommand\fR
.RS 4
command string
.RE
.PP
int \fInargs\fR
.RS 4
number of input parameters ($1,
$2, etc\&.)
.RE
.PP
Oid * \fIargtypes\fR
.RS 4
an array containing the
OIDs of the data types of the parameters
.RE
.PP
Datum * \fIvalues\fR
.RS 4
an array of actual parameter values
.RE
.PP
const char * \fInulls\fR
.RS 4
an array describing which parameters are null
.sp
If
\fInulls\fR
is
NULL
then
\fBSPI_cursor_open_with_args\fR
assumes that no parameters are null\&.
.RE
.PP
bool \fIread_only\fR
.RS 4
true
for read\-only execution
.RE
.PP
int \fIcursorOptions\fR
.RS 4
integer bit mask of cursor options; zero produces default behavior
.RE
.SH "RETURN VALUE"
.PP
Pointer to portal containing the cursor\&. Note there is no error return convention; any error will be reported via
\fBelog\fR\&.
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