Support

Import PostgreSQL EXPLAIN JSON offline, compare estimated and actual rows, trace loops and predicates, and turn plan evidence into review actions.

Start with the included sample

The app opens with a complete local sample workspace, so every main workflow can be reviewed without an account or external hardware.

Reset local data

Use the restore sample action in the editable workspace screen. This replaces the app's local workspace only.

Contact

Email support@shadowfetch.com with the app name, iOS version, device model, and steps that reproduce the issue. Do not include confidential field data.

Querycairn interprets recorded PostgreSQL plan fields and entered context; it does not connect to a database, execute SQL, recommend an index automatically, or prove a change is safe. EXPLAIN ANALYZE executes the statement. Use controlled data, representative parameters, and expert review.