Isn't it better to forbid the conbination of the options "-D -", "-F t" and "-X stream" in pg_basebackup? This is obviously invalid setting and the docs warns this as follows. But currently users can specify such setting and pg_basebackup can exit unexpectedly with an error.
----------------------- If the value - (dash) is specified as target directory, the tar contents will be written to standard output, suitable for piping to for example gzip. This is only possible if the cluster has no additional tablespaces. -----------------------
Yes, definitely. I'd say that's an oversight in implementing the support for stream-to-tar that it did not detect this issue.
Do you want to provide a patch for it, or should I?
