## Summary
Fixes several high-impact Sentry errors reported in production.
### Fixed Issues
- **[SUPABASE-APP-EJ3](https://supabase.sentry.io/issues/7356937474/)**
— `TypeError: Cannot read properties of undefined (reading 'direct')`.
`connectionStringPooler` could be `undefined` when the connection source
doesn't match any key in the connection strings map. Added an early
return guard in `resolveConnectionString`.
- **[SUPABASE-APP-B17](https://supabase.sentry.io/issues/7117468199/)**
— `RangeError: Invalid time zone specified: Etc/Unknown`.
`dayjs.tz.guess()` returns `"Etc/Unknown"` for some users with
misconfigured browser/OS timezones. Added a shared
`guessLocalTimezone()` helper that validates the guessed timezone via
`Intl.DateTimeFormat` and falls back to UTC. Applied across all 4 call
sites.
- **[SUPABASE-APP-BCM](https://supabase.sentry.io/issues/7192934901/)**
— `TypeError: Cannot convert undefined or null to object`.
`Object.entries(definition.properties)` crashed when a JSON schema
definition existed but had no `properties` field. Updated the guard to
check `definition?.properties` instead of just `definition`.
- https://supabase.sentry.io/issues/7357780302/?project=5459134
- https://supabase.sentry.io/issues/7358344652/?project=5459134
- https://supabase.sentry.io/issues/7096737077/?project=5459134
## Test plan
- [ ] Verify connect dialog renders without errors when connection data
is still loading
- [ ] Verify API docs Entity view handles schema definitions without
properties
- [ ] Verify charts/tooltips display correct timezone labels
---------
Co-authored-by: Ivan Vasilov <vasilov.ivan@gmail.com>
## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.
YES
## What kind of change does this PR introduce?
This introduces Query Insights. It's the first edition of possible
future updates. This takes our old prototype and builds upon it for a
more action driven insights view.
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: Ali Waseem <waseema393@gmail.com>
