What we’re shipping. What you’re querying.

Notes from building and running a Wialon extraction in production: where the platform’s API limits actually bite, why a daily row needs a timezone before it means anything, and what becomes answerable once the data sits in a database you can join against. Written for the people who will run the queries.

If you are weighing this up rather than reading for interest, the shorter route is how this compares with Wialon’s own reports and the tables you would be querying.