[PATCH] Fix raw SQLite template parameter dropping for distinct_id column

[GableTheSnail]

Hello! It was a tough day figuring out why the "Distinct Id" is not filled in but all other parameters, including geo-parameters such as the Country, Region or City are filled-in more than often. I narrowed it down to an issue in translating from PostgreSql with one field being improperly named.

I fixed it in the meanwhile using a database trigger, which is very elegant to work around the issue:

CREATE TRIGGER IF NOT EXISTS force_distinct_id_sync
AFTER INSERT ON session
FOR EACH ROW
WHEN NEW.distinct_id IS NULL OR NEW.distinct_id = ''
BEGIN
    UPDATE session
    SET distinct_id = NEW.session_id
    WHERE session_id = NEW.session_id;
END;

because it only needs to be set once. After that the "Distinct Id" field started to be populated, which was great.

The patch adds a file under the patches directory to rename the parameter properly so it should work directly without any changes unless I am missing something.

Many thanks for the SQLite port, it's very lightweight and works great for me/us!

Cheers!