Re: Ora2pg migration - Mailing list pgsql-admin

From Rajesh Kumar
Subject Re: Ora2pg migration
Date
Msg-id CAJk5AtZb7Abvym8CVE8m2Nj7SCnVM7qFNg=4OmKWgVHW4hVR4A@mail.gmail.com
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In response to Re: Ora2pg migration  (Laurenz Albe <laurenz.albe@cybertec.at>)
List pgsql-admin
Kindly provide the possible options to perform migration in this case. 

Kindly elaborate more on binary transfer.

On Fri, 22 Mar 2024, 15:34 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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