Support prefix for files

[kwando]

Have a config option that is a prefix, this way you can have multiple .cub files living in the same directory.

(I'm just tossing ideas here, feel free to disregard)

[lucaong]

Hi @kwando ,
thanks for your idea. This is technically feasible. My only concern would be around the use-case: do you have specific examples when using different directories is not advisable or not possible?

Specifying the data directory is already a form of "namespacing", and the directory will be created if it doesn't exist already. Therfore one can easily specify, for example, /some/path/db1 and /some/path/db2 as data directories for different CubDB instances. The nice thing about it, is that backing up a database is as simple as copying the latest .cub file (which is usually the only file in the directory, apart from when a compaction is running), or even the whole directory. Am I missing a use-case when it is more desirable to have multiple .cub files in the same directory?

[lucaong]

I'll close this for now, but happy to reopen it if a use-case arises.

[kwando]

Yeah, it is fine like it is. I was thinking about starting a "cubdb instance" per "table" in my app to get some more concurrency out of it and I din't want to have nested directories.. but that is not a real problem :)