public inbox for [email protected]  

help / color / mirror / Atom feed

From: Adrian Klaver <[email protected]>
To: [email protected] <[email protected]>
To: Pgsql-general <[email protected]>
Subject: Re: To take backup of Postgresql Database without large objects
Date: Fri, 11 Apr 2025 08:01:04 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

On 4/11/25 05:55, [email protected] 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
[email protected]

view thread (6+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected]
  Subject: Re: To take backup of Postgresql Database without large objects
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox