backup only 38mb?

Running this and sending over with rsync. The .gz is only 38mb. Is this normal? I thought it was backing up the photos.

docker exec -t immich_postgres pg_dumpall --clean --if-exists --username=postgres | gzip > "/immich-backup/dump.sql.gz"

docker exec -t immich_postgres pg_dumpall --clean --if-exists --username=postgres | gzip > "/immich-backup/dump.sql.gz"

backup only 38mb? - Immich