--Dump from Postgres 17 instance and pipe to Borg create.
pg_dump -Fc --compress=none --no-toast-compression -d pp_archive -U postgres  |
borg create --stats --stdin-name pg_file  --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_17 -

--Dump from 17 instance and then restore to 18b3 instance
pg_dump -Fc  -d pp_archive -U postgres -f pp_archive_17.out
pg_restore -c -C -d postgres -U postgres -p 5434 pp_archive_17.out

--Initial Postgres 18 dump after restore from Postgres 17 dump
pg_dump -Fc --compress=none --no-toast-compression -d pp_archive -U postgres -p 5434 |
borg create --stats --stdin-name pg_file  --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_1 -

--Second Postgres 18 dump.
pg_dump -Fc --compress=none --no-toast-compression -d pp_archive -U postgres -p 5434 |
borg create --stats --stdin-name pg_file  --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_2 -


--Update single field across 644129 rows of a table.
pg_dump -Fc --compress=none --no-toast-compression -d pp_archive -U postgres -p 5434 |
borg create --stats --stdin-name pg_file  --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_3 -


borg info --last 4 borg_test/

Archive name: PgTest_17
Archive fingerprint: 14163251a84f93e992b8304bbeac15056daa45ce3c8c5f76655af9ee1ef641de
Comment:
Hostname: mauradog
Username: aklaver
Time (start): Mon, 2025-09-01 10:07:20
Time (end): Mon, 2025-09-01 10:07:23
Duration: 2.80 seconds
Number of files: 1
Command line: borg create --stats --stdin-name pg_file --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_17 -
Utilization of maximum supported archive size: 0%
------------------------------------------------------------------------------
                       Original size      Compressed size    Deduplicated size
This archive:              208.87 MB             42.00 MB              6.92 MB
All archives:              835.47 MB            168.09 MB             84.90 MB

                       Unique chunks         Total chunks
Chunk index:                     162                  324

Archive name: PgTest_18_1
Archive fingerprint: 5fd88a99b5765d0af71d450b917157fa1d682691db33306e550ff7d0597fb05f
Comment:
Hostname: mauradog
Username: aklaver
Time (start): Mon, 2025-09-01 10:08:15
Time (end): Mon, 2025-09-01 10:08:17
Duration: 2.24 seconds
Number of files: 1
Command line: borg create --stats --stdin-name pg_file --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_1 -
Utilization of maximum supported archive size: 0%
------------------------------------------------------------------------------
                       Original size      Compressed size    Deduplicated size
This archive:              208.87 MB             42.00 MB              1.58 MB
All archives:              835.47 MB            168.09 MB             84.90 MB

                       Unique chunks         Total chunks
Chunk index:                     162                  324

Archive name: PgTest_18_2
Archive fingerprint: fcd113299afd6673c10e44dcd621722a46e35871d7171b24a3d7d61e3f48d1da
Comment:
Hostname: mauradog
Username: aklaver
Time (start): Mon, 2025-09-01 10:08:43
Time (end): Mon, 2025-09-01 10:08:45
Duration: 2.17 seconds
Number of files: 1
Command line: borg create --stats --stdin-name pg_file --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_2 -
Utilization of maximum supported archive size: 0%
------------------------------------------------------------------------------
                       Original size      Compressed size    Deduplicated size
This archive:              208.87 MB             42.00 MB              1.58 MB
All archives:              835.47 MB            168.09 MB             84.90 MB

                       Unique chunks         Total chunks
Chunk index:                     162                  324

Archive name: PgTest_18_3
Archive fingerprint: dbc0ddcfdad566d38ab3e210e376490e3e5cd1510c9cd45861b9ab550a04913f
Comment:
Hostname: mauradog
Username: aklaver
Time (start): Mon, 2025-09-01 10:09:33
Time (end): Mon, 2025-09-01 10:09:36
Duration: 2.65 seconds
Number of files: 1
Command line: borg create --stats --stdin-name pg_file --stdin-user aklaver --stdin-group aklaver borg_test/::PgTest_18_3 -
Utilization of maximum supported archive size: 0%
------------------------------------------------------------------------------
                       Original size      Compressed size    Deduplicated size
This archive:              208.87 MB             42.09 MB             34.40 MB
All archives:              835.47 MB            168.09 MB             84.90 MB

                       Unique chunks         Total chunks
Chunk index:                     162                  324