parallel plan in insert query

From: Grigory Smolkin <g(dot)smolkin(at)postgrespro(dot)ru>
To: pgsql-bugs(at)postgresql(dot)org
Subject: parallel plan in insert query
Date: 2016-10-11 10:01:15
Message-ID: 2950428a-2b07-03cb-4ec0-7454853fe244@postgrespro.ru
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Hello, everyone!

I have a query with following plan:
https://gist.github.com/gsmol/a0e752a3f003330a85e2bf243516a2d6

It fails with:
ERROR: cannot start commands during a parallel operation

I was under impression that for a write query no parallel plan will
every be generated.
Am I missed something?

--
Grigory Smolkin
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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