Re: Beginner Question:Why it always make sure that the postgres better than common csv file storage in disaster recovery? - Mailing list pgsql-general

On 7/3/22 20:06, Wen Yi wrote:
> I am a student who are interesting in database kernel.When I am 
> reviewing my database course,a question make me confused.
> 
> In file system,if a error happen when I insert some data into data 
> saving system,the whole data exists will be broken and can't recovery 
> anymore.
> 
> But when I check the code in postgres,I found the postgres also use the 
> write function(That! is a UNIX file system api)
> 
> My question is:
> 
> Since it's all built on top of the file system,why it always make sure 
> that the postgres better than common csv file storage in disaster recovery?

https://www.postgresql.org/docs/current/wal.html

> 
> Thanks in advance!


-- 
Adrian Klaver
adrian.klaver@aklaver.com