Re: Ora2pg migration

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От Ron Johnson
Тема Re: Ora2pg migration
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Msg-id CANzqJaAPK69aA9UVhTvatMX=5fEVt==B8eSpGoZekHy-mFGsug@mail.gmail.com
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Ответ на Re: Ora2pg migration  ("Narendran .j" <jnarendran3@gmail.com>)
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I can't help asking: what in the heck are you storing that's eight gigabytes???

On Mon, Mar 25, 2024 at 2:33 PM Narendran .j <jnarendran3@gmail.com> wrote:
Hello 
It's almost 8gb, could you explain me how can I transfer as binary file?.I'm new on this.

On Fri, 22 Mar 2024, 3:33 pm Laurenz Albe, <laurenz.albe@cybertec.at> wrote:
On Fri, 2024-03-22 at 11:08 +0530, Narendran .j wrote:
> I have export one table which has blob data type by ora2pg tool.while Importing insert file in postgres I'm getting this error .
> psql:ERROR: out of memory 
> DETAIL: Cannot enlarge string buffer containing 1073741808 bytes by 8191 more bytes.
>
> Please give me any suggestions and I adjust shared_buffer it didn't work.

1GB is a hard limit for memory allocations.

How big are those BLOBs?  The theoretical limit in PostgreSQL is 1GB, but in
practice things start getting difficult around 500MB, unless you use binary
transfer.

Yours,
Laurenz Albe

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