The grid (core) ยท console.warn
this DuckDB connection has no prepare(), so ...
Printed by The grid (core), prefixed [lattice], since 1.63.0.
Warnings reference › source.duckdb.unprepared.group
- Identifier
source.duckdb.unprepared.group- Raised by
- The grid (core)
- Since
- 1.63.0
What happened
The same refusal on the grouping path: a level of the group tree could not be fetched, so that branch stays empty.
The fix
Use a connection that implements prepare().
Reference
Covered in full at the API reference.