[Bug] [python] Cryptic error when opening database built under earlier version

[biostu24]

Describe the bug

From a database built using version 1.16.2 of the tiledbsoma python package, the follow error was raised when a colleague tried opening the database using version 1.14 of the package:

RuntimeError: ArraySchema: Unable to check if unknown enumeration is loaded. No enumeration named 'species'.

It took quite a while for us to find the cause of the error. Would it be possible to include a database version check and provide a more informative error. Something along the lines of "Database built with version x not compatible with tiledbsoma package version y".

To Reproduce

Database built with version 1.16.2

Try connecting to database using package version 1.14

Versions (please complete the following information):

• TileDB-SOMA version: See above
• Language and language version (e.g. Python 3.9, R 4.3.2): Python 3.9
• OS (e.g. MacOS, Ubuntu Linux): Ubuntu

[bkmartinjr]

Hi @biostu24 - thanks for the bug report. Could you provide additional details necessary to reproduce this issue?

I did a simple test where I ingested an H5AD using version 1.16.2, and then tried to open it using version 1.14.5. This results in a better (still imperfect) error:

ValueError: Unsupported SOMA object encoding version 1.1.0

thanks!

---

Code inspection revealed a number of ways the above check could be bypassed and potentially cause trouble. I would like to make sure I cover your test case, so let me know if you can provide additional info. Thanks!