Re: UUID or auto-increment
Adrian Klaver <adrian.klaver@aklaver.com>
From: Adrian Klaver <adrian.klaver@aklaver.com>
To: Ron <ronljohnsonjr@gmail.com>, pgsql-general@lists.postgresql.org
Date: 2020-08-10T16:58:51Z
Lists: pgsql-general
On 8/10/20 9:51 AM, Ron wrote: > On 8/10/20 11:38 AM, Ravi Krishna wrote: > [snip] >> Finally UUID results in write amplication in wal logs. Keep that in >> mind if your app does lot of writes. > > Because UUID is 32 bytes, while SERIAL is 4 bytes? You mean 32 digits for 128 bits?: https://www.postgresql.org/docs/12/datatype-uuid.html And there is BIGSERIAL which is 8 bytes. > > -- > Angular momentum makes the world go 'round. -- Adrian Klaver adrian.klaver@aklaver.com