Optimize app startup with Materialized View for trip statistics#45
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srepetsk wants to merge 2 commits into
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Optimize app startup with Materialized View for trip statistics#45srepetsk wants to merge 2 commits into
srepetsk wants to merge 2 commits into
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srepetsk
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Mar 21, 2026
srepetsk
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- Implemented 'station_trip_stats_mv' PostgreSQL materialized view to pre-calculate station-to-station average and median trip durations.
- Refactored 'TrainService' to query the materialized view at startup, eliminating the N+1 query bottleneck against the 12M+ row history table.
- Added 'refreshTripStatsView' scheduled task to refresh the view nightly at 4 AM.
- Added 'sql/create_station_trip_stats_mv.sql' migration script.
- Updated README.md with instructions for initializing the materialized view in local and server environments.
- Implemented 'station_trip_stats_mv' PostgreSQL materialized view to pre-calculate station-to-station average and median trip durations. - Refactored 'TrainService' to query the materialized view at startup, eliminating the N+1 query bottleneck against the 12M+ row history table. - Added 'refreshTripStatsView' scheduled task to refresh the view nightly at 4 AM. - Added 'sql/create_station_trip_stats_mv.sql' migration script. - Updated README.md with instructions for initializing the materialized view in local and server environments.
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