0004-Documentation-for-parallel-copy.patch
application/octet-stream
Filename: 0004-Documentation-for-parallel-copy.patch
Type: application/octet-stream
Part: 3
Message:
Re: Parallel copy
Patch
Same data as JSON:
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the parsed metadata as JSON — format, series position, per-file stats; never the diff bytes.
API reference →
Format: format-patch
Series: patch 0004
Subject: Documentation for parallel copy.
| File | + | − |
|---|---|---|
| doc/src/sgml/ref/copy.sgml | 16 | 0 |
From d04485ce9e4768cbab3f2722dadcf032586fda33 Mon Sep 17 00:00:00 2001
From: Vignesh C <vignesh21@gmail.com>
Date: Wed, 17 Jun 2020 07:34:56 +0530
Subject: [PATCH 4/6] Documentation for parallel copy.
This patch has the documentation changes for parallel copy.
---
doc/src/sgml/ref/copy.sgml | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/doc/src/sgml/ref/copy.sgml b/doc/src/sgml/ref/copy.sgml
index 18189ab..95d349d 100644
--- a/doc/src/sgml/ref/copy.sgml
+++ b/doc/src/sgml/ref/copy.sgml
@@ -37,6 +37,7 @@ COPY { <replaceable class="parameter">table_name</replaceable> [ ( <replaceable
DELIMITER '<replaceable class="parameter">delimiter_character</replaceable>'
NULL '<replaceable class="parameter">null_string</replaceable>'
HEADER [ <replaceable class="parameter">boolean</replaceable> ]
+ PARALLEL <replaceable class="parameter">integer</replaceable>
QUOTE '<replaceable class="parameter">quote_character</replaceable>'
ESCAPE '<replaceable class="parameter">escape_character</replaceable>'
FORCE_QUOTE { ( <replaceable class="parameter">column_name</replaceable> [, ...] ) | * }
@@ -275,6 +276,21 @@ COPY { <replaceable class="parameter">table_name</replaceable> [ ( <replaceable
</varlistentry>
<varlistentry>
+ <term><literal>PARALLEL</literal></term>
+ <listitem>
+ <para>
+ Perform <command>COPY FROM</command> in parallel using <replaceable
+ class="parameter"> integer</replaceable> background workers. Please
+ note that it is not guaranteed that the number of parallel workers
+ specified in <replaceable class="parameter">integer</replaceable> will
+ be used during execution. It is possible for a copy to run with fewer
+ workers than specified, or even with no workers at all. This option is
+ allowed only in <command>COPY FROM</command>.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><literal>QUOTE</literal></term>
<listitem>
<para>
--
1.8.3.1