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From: "David G. Johnston" <david.g.johnston@gmail.com>
Date: Mon, 10 Nov 2025 07:05:09 -0500
Message-ID: 
 <CAKFQuwYWC3wOLHQ1GwpxJqk9VuRzSmYCTyzWiBYub95U-cM_wQ@mail.gmail.com>
Subject: Re: question about parallel. i read document and i can't solve it.
 provide the solution please.
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	"pgsql-docs@lists.postgresql.org" <pgsql-docs@lists.postgresql.org>
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On Sunday, November 9, 2025, PG Doc comments form <noreply@postgresql.org>
wrote:

> The following documentation comment has been logged on the website:
>
> Page: https://www.postgresql.org/docs/18/when-can-parallel-
> query-be-used.html
> Description:
>
> I'm inquiring because I have some problem getting parallel processing to
> run
> effectively in PostgreSQL.


This is not the right place to seek support.  We have a -general mailing
list for that.


>
> How can I increase the Workers Launched value to match the Workers Planned
> value, or at least raise it to 4?


That level of control is not provided.


>
> I want to use parallel to speed up for index creation and data insertion
>

This page clearly states that data writing is not parallelized.

David J.

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On Sunday, November 9, 2025, PG Doc comments form &lt;<a href=3D"mailto:nor=
eply@postgresql.org">noreply@postgresql.org</a>&gt; wrote:<br><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex">The following documentation comment has been logged on th=
e website:<br>
<br>
Page: <a href=3D"https://www.postgresql.org/docs/18/when-can-parallel-query=
-be-used.html" target=3D"_blank">https://www.postgresql.org/<wbr>docs/18/wh=
en-can-parallel-<wbr>query-be-used.html</a><br>
Description:<br>
<br>
I&#39;m inquiring because I have some problem getting parallel processing t=
o run<br>
effectively in PostgreSQL.</blockquote><div><br></div><div>This is not the =
right place to seek support.=C2=A0 We have a -general mailing list for that=
.</div><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0=
 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
How can I increase the Workers Launched value to match the Workers Planned<=
br>
value, or at least raise it to 4?</blockquote><div><br></div><div>That leve=
l of control is not provided.</div><div>=C2=A0</div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-le=
ft:1ex">
<br>
I want to use parallel to speed up for index creation and data insertion<br=
>
</blockquote><div><br></div><div>This page clearly states that data writing=
 is not parallelized.</div><div><br></div><div>David J.</div><div>=C2=A0</d=
iv>

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