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+'\" t
+.\"     Title: dblink_cancel_query
+.\"    Author: The PostgreSQL Global Development Group
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 2024
+.\"    Manual: PostgreSQL 16.2 Documentation
+.\"    Source: PostgreSQL 16.2
+.\"  Language: English
+.\"
+.TH "DBLINK_CANCEL_QUERY" "3" "2024" "PostgreSQL 16.2" "PostgreSQL 16.2 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"
+dblink_cancel_query \- cancels any active query on the named connection
+.SH "SYNOPSIS"
+.sp
+.nf
+dblink_cancel_query(text connname) returns text
+.fi
+.SH "DESCRIPTION"
+.PP
+\fBdblink_cancel_query\fR
+attempts to cancel any query that is in progress on the named connection\&. Note that this is not certain to succeed (since, for example, the remote query might already have finished)\&. A cancel request simply improves the odds that the query will fail soon\&. You must still complete the normal query protocol, for example by calling
+\fBdblink_get_result\fR\&.
+.SH "ARGUMENTS"
+.PP
+\fIconnname\fR
+.RS 4
+Name of the connection to use\&.
+.RE
+.SH "RETURN VALUE"
+.PP
+Returns
+OK
+if the cancel request has been sent, or the text of an error message on failure\&.
+.SH "EXAMPLES"
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+SELECT dblink_cancel_query(\*(Aqdtest1\*(Aq);
+.fi
+.if n \{\
+.RE
+.\}