> It couldn't be achieved just by introducing a static string "log". The "log_directory" GUC must be examined on both, source and target.
Trouble with doing that is if pg_rewind is run in non-libpq (offline) mode. Then we would have to parse it out of the conf file(s)? Is there a standard way of doing that?
pg_rewind is already doing something similar for "restore_command":
/* * Get value of GUC parameter restore_command from the target cluster. * * This uses a logic based on "postgres -C" to get the value from the * cluster. */ static void getRestoreCommand(const char *argv0)
For the running source cluster one could just use "SHOW log_directory"
