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(dot)klaver(at)aklaver(dot)com