I'm rather new to the mailing list, are there any additional steps I should take (i.e. posting to pgsql-hackers, etc.)?
On Thu, Dec 28, 2023 at 11:23 AM Adrian Klaver <adrian.kla...@aklaver.com> wrote: > On 12/28/23 09:13, Sean Flaherty wrote: > > Follow-up: > > Working with AWS, we found that starting in RDS Postgres 15, the > > default_toast_compression parameter is set to use lz4 compression > > instead of pglz. This resulted in the increased json storage size we > > were seeing. > > > > I have been able to reproduce the increased storage size on RDS Postgres > > and using my local docker instance of postgres 15.5 by changing the > > local default_toast_compression value in postgresql.conf. > > > > I have attached the test script we use to create a table, insert some > > test records and a query to test the JSON data size on disk. > > I can confirm I see the same results using Postgres 16 installed from > the PGDG repo on Ubuntu 22.04. That the lz4 data size is greater then > the pglz data size. > > > > > > > Kind regards, > > Sean > > > > > -- > Adrian Klaver > adrian.kla...@aklaver.com > >
