PostgreSQL Data Warehouse for 3,000 Vehicles
A multi-region fleet team replaced spreadsheet reporting with a governed Wialon to PostgreSQL warehouse.
Customer
Multi-Region Fleet Operator
Segment
Transport Services
Fleet
3,000 vehicles
Timeline
12 weeks
Challenge
- Reports were generated by different teams with conflicting metric definitions.
- No historical baseline for monthly cost analysis.
- Dashboard trust dropped because figures changed between reports.
Solution
- Implemented immutable staging and versioned transformation layers.
- Built KPI dictionary shared across operations and finance.
- Added freshness and reconciliation controls for daily quality assurance.