DESCRIBE of "{from}" failed ({error}), so filter values are typed from the grid column types alone. A timestamp or date filter on a column whose grid type is not declared may be refused by the engine.

Warnings reference › source.duckdb.describe

Identifier

source.duckdb.describe

Raised by

The grid (core)

Since

1.48.0

What happened

The adapter uses DESCRIBE to learn the engine's own column types so that it can bind filter values with the right SQL type. Without it, types come from the grid's column declarations alone - which is enough for a declared column and not enough for an undeclared one, where a date or timestamp comparison may be rejected by the engine.

The fix

Declare the type on the grid columns you filter, or fix whatever made DESCRIBE fail (the error is quoted in the message).

Reference

Covered in full at the API reference.