Beta Shell v2.0

File Manager

Name	Size	Perms	Modified	Actions
[ .. / .. ]
SPI_connect.3	2.18 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_copytuple.3	1.76 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_cursor_close.3	1.71 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_fetch.3	2.06 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_find.3	1.71 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_move.3	1.93 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_open.3	3.5 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_open_with_args.3	3.77 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_cursor_open_with_paramlist.3	2.78 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_exec.3	1.72 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_execp.3	2.65 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_execute.3	7.86 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_execute_plan.3	3.14 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_execute_plan_with_paramlist.3	2.63 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_execute_with_args.3	3.87 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_finish.3	2.05 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_fname.3	1.87 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_fnumber.3	2.1 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_freeplan.3	1.7 KB	-rw-r--r--	2021-11-08 22:28:37	Edit Del
SPI_freetuple.3	1.68 KB	-rw-r--r--	2021-11-08 22:28:37	Edit Del
SPI_freetuptable.3	2.38 KB	-rw-r--r--	2021-11-08 22:28:37	Edit Del
SPI_getargcount.3	1.84 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_getargtypeid.3	2.1 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_getbinval.3	2.24 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_getnspname.3	1.78 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_getrelname.3	1.69 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_gettype.3	1.88 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_gettypeid.3	1.8 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_getvalue.3	2.12 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_is_cursor_plan.3	2.33 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_keepplan.3	2.03 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_modifytuple.3	3.36 KB	-rw-r--r--	2021-11-08 22:28:37	Edit Del
SPI_palloc.3	1.6 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_pfree.3	1.69 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_pop.3	1.45 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_prepare.3	5.21 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_prepare_cursor.3	2.53 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_prepare_params.3	2.34 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_push.3	2.2 KB	-rw-r--r--	2021-11-08 22:28:34	Edit Del
SPI_repalloc.3	1.92 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_returntuple.3	2.13 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_saveplan.3	2.41 KB	-rw-r--r--	2021-11-08 22:28:36	Edit Del
SPI_scroll_cursor_fetch.3	2.37 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
SPI_scroll_cursor_move.3	2.42 KB	-rw-r--r--	2021-11-08 22:28:35	Edit Del
dblink.3	6.49 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_build_sql_delete.3	3.26 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_build_sql_insert.3	3.85 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_build_sql_update.3	4.1 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_cancel_query.3	2.1 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_close.3	2.71 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_connect.3	5.67 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_connect_u.3	2.74 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_disconnect.3	2.1 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_error_message.3	2.21 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_exec.3	3.74 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_fetch.3	4.15 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_get_connections.3	1.71 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_get_notify.3	2.48 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_get_pkey.3	2.64 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_get_result.3	4.87 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_is_busy.3	1.82 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del
dblink_open.3	3.21 KB	-rw-r--r--	2021-11-08 22:28:59	Edit Del
dblink_send_query.3	2.33 KB	-rw-r--r--	2021-11-08 22:29:00	Edit Del

Editing: dblink_build_sql_update.3 (4.1 KB)

'\" t
.\"     Title: dblink_build_sql_update
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 2021
.\"    Manual: PostgreSQL 9.6.24 Documentation
.\"    Source: PostgreSQL 9.6.24
.\"  Language: English
.\"
.TH "DBLINK_BUILD_SQL_UPDATE" "3" "2021" "PostgreSQL 9.6.24" "PostgreSQL 9.6.24 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"
dblink_build_sql_update \- builds an UPDATE statement using a local tuple, replacing the primary key field values with alternative supplied values
.SH "SYNOPSIS"
.sp
.nf
dblink_build_sql_update(text relname,
                        int2vector primary_key_attnums,
                        integer num_primary_key_atts,
                        text[] src_pk_att_vals_array,
                        text[] tgt_pk_att_vals_array) returns text
.fi
.SH "DESCRIPTION"
.PP
\fBdblink_build_sql_update\fR
can be useful in doing selective replication of a local table to a remote database\&. It selects a row from the local table based on primary key, and then builds a SQL
\fBUPDATE\fR
command that will duplicate that row, but with the primary key values replaced by the values in the last argument\&. (To make an exact copy of the row, just specify the same values for the last two arguments\&.) The
\fBUPDATE\fR
command always assigns all fields of the row \(em the main difference between this and
\fBdblink_build_sql_insert\fR
is that it\*(Aqs assumed that the target row already exists in the remote table\&.
.SH "ARGUMENTS"
.PP
\fIrelname\fR
.RS 4
Name of a local relation, for example
foo
or
myschema\&.mytab\&. Include double quotes if the name is mixed\-case or contains special characters, for example
"FooBar"; without quotes, the string will be folded to lower case\&.
.RE
.PP
\fIprimary_key_attnums\fR
.RS 4
Attribute numbers (1\-based) of the primary key fields, for example
1 2\&.
.RE
.PP
\fInum_primary_key_atts\fR
.RS 4
The number of primary key fields\&.
.RE
.PP
\fIsrc_pk_att_vals_array\fR
.RS 4
Values of the primary key fields to be used to look up the local tuple\&. Each field is represented in text form\&. An error is thrown if there is no local row with these primary key values\&.
.RE
.PP
\fItgt_pk_att_vals_array\fR
.RS 4
Values of the primary key fields to be placed in the resulting
\fBUPDATE\fR
command\&. Each field is represented in text form\&.
.RE
.SH "RETURN VALUE"
.PP
Returns the requested SQL statement as text\&.
.SH "NOTES"
.PP
As of
PostgreSQL
9\&.0, the attribute numbers in
\fIprimary_key_attnums\fR
are interpreted as logical column numbers, corresponding to the column\*(Aqs position in
SELECT * FROM relname\&. Previous versions interpreted the numbers as physical column positions\&. There is a difference if any column(s) to the left of the indicated column have been dropped during the lifetime of the table\&.
.SH "EXAMPLES"
.sp
.if n \{\
.RS 4
.\}
.nf
SELECT dblink_build_sql_update(\*(Aqfoo\*(Aq, \*(Aq1 2\*(Aq, 2, \*(Aq{"1", "a"}\*(Aq, \*(Aq{"1", "b"}\*(Aq);
                   dblink_build_sql_update
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
 UPDATE foo SET f1=\*(Aq1\*(Aq,f2=\*(Aqb\*(Aq,f3=\*(Aq1\*(Aq WHERE f1=\*(Aq1\*(Aq AND f2=\*(Aqb\*(Aq
(1 row)
.fi
.if n \{\
.RE
.\}