Function duckdb_vector_ensure_validity_writable 

pub unsafe extern "C" fn duckdb_vector_ensure_validity_writable(
    vector: duckdb_vector,
)

Ensures the validity mask is writable by allocating it.

After this function is called, duckdb_vector_get_validity will ALWAYS return non-NULL. This allows NULL values to be written to the vector, regardless of whether a validity mask was present before.

history:

• stable: v0.3.3

@param vector The vector to alter @return void