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+'\" t
+.\"     Title: dblink_exec
+.\"    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 "DBLINK_EXEC" "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"
+dblink_exec \- executes a command in a remote database
+.SH "SYNOPSIS"
+.sp
+.nf
+dblink_exec(text connname, text sql [, bool fail_on_error]) returns text
+dblink_exec(text connstr, text sql [, bool fail_on_error]) returns text
+dblink_exec(text sql [, bool fail_on_error]) returns text
+.fi
+.SH "DESCRIPTION"
+.PP
+\fBdblink_exec\fR
+executes a command (that is, any SQL statement that doesn\*(Aqt return rows) in a remote database\&.
+.PP
+When two
+text
+arguments are given, the first one is first looked up as a persistent connection\*(Aqs name; if found, the command is executed on that connection\&. If not found, the first argument is treated as a connection info string as for
+\fBdblink_connect\fR, and the indicated connection is made just for the duration of this command\&.
+.SH "ARGUMENTS"
+.PP
+\fIconnname\fR
+.RS 4
+Name of the connection to use; omit this parameter to use the unnamed connection\&.
+.RE
+.PP
+\fIconnstr\fR
+.RS 4
+A connection info string, as previously described for
+\fBdblink_connect\fR\&.
+.RE
+.PP
+\fIsql\fR
+.RS 4
+The SQL command that you wish to execute in the remote database, for example
+insert into foo values(0, \*(Aqa\*(Aq, \*(Aq{"a0","b0","c0"}\*(Aq)\&.
+.RE
+.PP
+\fIfail_on_error\fR
+.RS 4
+If true (the default when omitted) then an error thrown on the remote side of the connection causes an error to also be thrown locally\&. If false, the remote error is locally reported as a NOTICE, and the function\*(Aqs return value is set to
+ERROR\&.
+.RE
+.SH "RETURN VALUE"
+.PP
+Returns status, either the command\*(Aqs status string or
+ERROR\&.
+.SH "EXAMPLES"
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+SELECT dblink_connect(\*(Aqdbname=dblink_test_standby\*(Aq);
+ dblink_connect
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+ OK
+(1 row)
+
+SELECT dblink_exec(\*(Aqinsert into foo values(21, \*(Aq\*(Aqz\*(Aq\*(Aq, \*(Aq\*(Aq{"a0","b0","c0"}\*(Aq\*(Aq);\*(Aq);
+   dblink_exec
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+ INSERT 943366 1
+(1 row)
+
+SELECT dblink_connect(\*(Aqmyconn\*(Aq, \*(Aqdbname=regression\*(Aq);
+ dblink_connect
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+ OK
+(1 row)
+
+SELECT dblink_exec(\*(Aqmyconn\*(Aq, \*(Aqinsert into foo values(21, \*(Aq\*(Aqz\*(Aq\*(Aq, \*(Aq\*(Aq{"a0","b0","c0"}\*(Aq\*(Aq);\*(Aq);
+   dblink_exec
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
+ INSERT 6432584 1
+(1 row)
+
+SELECT dblink_exec(\*(Aqmyconn\*(Aq, \*(Aqinsert into pg_class values (\*(Aq\*(Aqfoo\*(Aq\*(Aq)\*(Aq,false);
+NOTICE:  sql error
+DETAIL:  ERROR:  null value in column "relnamespace" violates not\-null constraint
+
+ dblink_exec
+\-\-\-\-\-\-\-\-\-\-\-\-\-
+ ERROR
+(1 row)
+.fi
+.if n \{\
+.RE
+.\}