copy from shouldn't create not exist directories

[MichaelScofield]

What type of bug is this?

User Experience

What subsystems are affected?

Standalone mode

Minimal reproduce step

Start a standalone locally and execute:

create table foo (ts timestamp time index);
copy foo from '/tmp/should-not-have-been-existed-dir/foo.parquet' with (format = 'parquet');

You'll see the directory /tmp/should-not-have-been-existed-dirbeen created. I think it's a bad side effect which must be resolved, since "copy from" is expected to be a read only operation for the file system, from the perspective of users.

What did you expect to see?

If the directory is not existed, don't create it.

What did you see instead?

Directory been created.

What operating system did you use?

macos

What version of GreptimeDB did you use?

latest

Relevant log output and stack trace