Re: PARALLEL CTAS
| От | Shane Borden |
|---|---|
| Тема | Re: PARALLEL CTAS |
| Дата | |
| Msg-id | C1789BA9-1AAE-4BD7-A9FF-E0FB8AF5B54F@gmail.com обсуждение исходный текст |
| Ответ на | Re: PARALLEL CTAS (Erik Brandsberg <erik@heimdalldata.com>) |
| Ответы |
Re: PARALLEL CTAS
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| Список | pgsql-sql |
The issue is there are certain performance benefits to be had by doing parallel CTAS operations and when converting from Oracle to PostgreSQL switching to a “COPY” operation isn’t feasible.
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Thanks,
Shane Borden
sborden76@gmail.com
Thanks,
Shane Borden
sborden76@gmail.com
On Dec 12, 2022, at 11:55 AM, Erik Brandsberg <erik@heimdalldata.com> wrote:Copy operations are by far the most efficient way to do bulk loads. The fdw extension isn't very efficient based on prior experience.On Mon, Dec 12, 2022 at 11:17 AM Shane Borden <sborden76@gmail.com> wrote:Based on testing thus far, it appears that the only way to get a bulk load operation (similar to oracle) would be to use the COPY command or to use multiple connections and break up the inserts across connections. I did see a possibility of using the postgres_fdw extension and use the batch functionality, but I haven’t tested that yet.Does anyone know the status of this feature / patch that was discussed in this link?Is there a way in PostgreSQL to parallelize a CTAS statement similar to how you can do it in Oracle?
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