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+'\" t
+.\"     Title: SPI_getargtypeid
+.\"    Author: The PostgreSQL Global Development Group
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 2023
+.\"    Manual: PostgreSQL 15.5 Documentation
+.\"    Source: PostgreSQL 15.5
+.\"  Language: English
+.\"
+.TH "SPI_GETARGTYPEID" "3" "2023" "PostgreSQL 15.5" "PostgreSQL 15.5 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_getargtypeid \- return the data type OID for an argument of a statement prepared by \fBSPI_prepare\fR
+.SH "SYNOPSIS"
+.sp
+.nf
+Oid SPI_getargtypeid(SPIPlanPtr \fIplan\fR, int \fIargIndex\fR)
+.fi
+.SH "DESCRIPTION"
+.PP
+\fBSPI_getargtypeid\fR
+returns the OID representing the type for the
+\fIargIndex\fR\*(Aqth argument of a statement prepared by
+\fBSPI_prepare\fR\&. First argument is at index zero\&.
+.SH "ARGUMENTS"
+.PP
+SPIPlanPtr \fIplan\fR
+.RS 4
+prepared statement (returned by
+\fBSPI_prepare\fR)
+.RE
+.PP
+int \fIargIndex\fR
+.RS 4
+zero based index of the argument
+.RE
+.SH "RETURN VALUE"
+.PP
+The type OID of the argument at the given index\&. If the
+\fIplan\fR
+is
+NULL
+or invalid, or
+\fIargIndex\fR
+is less than 0 or not less than the number of arguments declared for the
+\fIplan\fR,
+\fISPI_result\fR
+is set to
+SPI_ERROR_ARGUMENT
+and
+InvalidOid
+is returned\&.