Method append_nulls

parquet-variant-compute/src/variant_array_builder.rs:160–169

Appends `n` null rows to the builder.

(&mut self, n: usize)

    /// Appends `n` null rows to the builder.
    pub fn append_nulls(&mut self, n: usize) {
        self.nulls.append_n_nulls(n);
        // The subfields are expected to be non-nullable according to the parquet variant spec.
        let metadata_offset = self.metadata_builder.offset();
        let value_offset = self.value_builder.offset();
        self.metadata_offsets
            .extend(std::iter::repeat_n(metadata_offset, n));
        self.value_offsets
            .extend(std::iter::repeat_n(value_offset, n));
    }

    /// Append the [`Variant`] to the builder as the next row
    pub fn append_variant(&mut self, variant: Variant) {