Giorgi / DuckDB.NET / 22734550158

90%

Build Type

push

github

Committed by Giorgi

Commit Message

Add NULL handling support for scalar functions

Replace `isPureFunction` bool with `ScalarFunctionOptions`
record that supports `IsPureFunction` and `HandlesNulls`.

- Add `ScalarFunctionOptions` with `IsPureFunction` and
  `HandlesNulls` properties
- Bind `duckdb_scalar_function_set_special_handling` native
  method to enable NULL passthrough
- Update simplified scalar function extensions to validate
  nullable parameter types when `HandlesNulls` is true
- Propagate NULL correctly: nullable types get default,
  non-nullable types throw with a clear error message
- Update existing tests to use new options API

Coverage Stats

1287 of 1499 branches covered (85.86%)

Branch coverage included in aggregate %.

41 of 49 new or added lines in 3 files covered. (83.67%)

2 existing lines in 2 files now uncovered.

2630 of 2878 relevant lines covered (91.38%)

446353.59 hits per line