Am 03.05.2021 um 10:41 schrieb Laurenz Albe:
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.
This is a useful hint. I did this already in my PG10 <-> libpq10(x86)
testinstallation.
Thank you.
--
May the source be with you
