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help / color / mirror / Atom feedFrom: Rob Sargent <[email protected]>
To: [email protected]
Subject: Re: PARALLEL CTAS
Date: Mon, 12 Dec 2022 10:25:08 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
<CAFcck8HhsTh70ZjQEuvm2kfx0LULJAZR3NZNHvSEX1Y5BaxAMg@mail.gmail.com>
<[email protected]>
On 12/12/22 10:13, Shane Borden wrote:
> 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.
> ---
>
> Thanks,
>
Today I suspect you're left with something like the following:
- CTAS from source where 1=2 (i.e. table definition via select semantics)
- copy from stdin (filled with intended CTAS select)
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