On 4/11/25 05:55, sivapostgres@yahoo.com wrote:
> Hello,
>
> Using PostgreSQL 15.1, compiled by Visual C++ build 1914, 64-bit in
> Windows 10.
>
> Trying to take backup of a database, using pg_dump, where one table
> contains bytea datatype, which I don't want to include in the backup.
>
> My command was:
> "E:\DBBackup\bin\pg_dump.exe" -h 192.168.1.1 -p 5432 -U <username>
> --no-blobs -F c -v -f "E:\DBBackup\demo6_110420251637.bak" demo6
>
> the backup includes the bytea field also.
>
> I tried with
> "E:\DBBackup\bin\pg_dump.exe" -h 192.168.1.1 -p 5432 -U <username> -B
> -F c -v -f "E:\DBBackup\demo6_110420251637.bak" demo6
>
> also, which also included the bytea field.
1) Short version
Short version bytea fields != large objects.
2) Long version
From here:
https://www.postgresql.org/docs/current/app-pgdump.html
-B
--no-large-objects
--no-blobs (deprecated)
Exclude large objects in the dump.
When both -b and -B are given, the behavior is to output large
objects, when data is being dumped, see the -b documentation.
Where large objects are defined here:
https://www.postgresql.org/docs/current/largeobjects.html
>
> What wrong I'm doing? Couldn't figure it out. Any help is appreciated.
>
> Happiness Always
> BKR Sivaprakash
>
--
Adrian Klaver
adrian.klaver@aklaver.com
