RE: Parallel INSERT (INTO ... SELECT ...)
От | Hou, Zhijie |
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Тема | RE: Parallel INSERT (INTO ... SELECT ...) |
Дата | |
Msg-id | 8f4ec40e02e1427ab584e9acdc4336b4@G08CNEXMBPEKD05.g08.fujitsu.local обсуждение исходный текст |
Ответ на | Re: Parallel INSERT (INTO ... SELECT ...) (Greg Nancarrow <gregn4422@gmail.com>) |
Ответы |
Re: Parallel INSERT (INTO ... SELECT ...)
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Список | pgsql-hackers |
> Posting an updated set of patches. A minor comment about doc. + <para> + Where the above target table features are determined to be, at worst, + parallel-restricted, rather than parallel-unsafe, at least a parallel table + scan may be used in the query plan for the <literal>INSERT</literal> + statement. For more information about Parallel Safety, see + <xref linkend="parallel-safety"/>. + </para> It seems does not mention that if target table is a foreign/temp table, a parallel table scan may be used. So how about: + <para> + Where the target table is a foreign/temporary table or the above target table features + are determined to be, at worst, parallel-restricted, rather than parallel-unsafe, + at least a parallel table scan may be used in the query plan for the + <literal>INSERT</literal> statement. For more information about Parallel Safety, + see <xref linkend="parallel-safety"/>. + </para> Best regards, houzj
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