On Sat, 2021-05-01 at 12:59 +0200, Wolfgang Rißler wrote: > Am 30.04.2021 um 16:16 schrieb Tom Lane: > > I would recommend trying to use a reasonably late-vintage libpq; we do > > fix bugs in it on a regular basis. > > The common stumbling block for cross-version situations is that the > > client makes assumptions about system catalog contents that are not > > valid in some other server release. libpq proper doesn't really touch > > the catalogs, so it's mostly impervious to that problem; but you'll need > > to test your applications. > > Of course we'll do. One thing is, that we load and write bytea's. And as > I read, there have been some changes. All other Operations are less > problematic.
Version 9.0 changed the default "bytea" output format to hexadecimal. If you want the old text output format, set "bytea_output" to "escape". If you output "bytea"s in binary form, nothing has changed. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com
