Method from_arrow

crates/paimon/src/spec/binary_row.rs:351–367

Build a BinaryRow from selected columns of an Arrow RecordBatch at a given row. `field_indices` maps each position in the output BinaryRow to a column index in the batch; `fields` provides the Paimon DataField metadata for every column in the schema (indexed by the same column indices).

(
        batch: &RecordBatch,
        row_idx: usize,
        field_indices: &[usize],
        fields: &[crate::spec::DataField],
    )

    /// in the batch; `fields` provides the Paimon DataField metadata for every column
    /// in the schema (indexed by the same column indices).
    pub fn from_arrow(
        batch: &RecordBatch,
        row_idx: usize,
        field_indices: &[usize],
        fields: &[crate::spec::DataField],
    ) -> crate::Result<Self> {
        let arity = field_indices.len() as i32;
        let mut builder = BinaryRowBuilder::new(arity);
        for (pos, &field_idx) in field_indices.iter().enumerate() {
            let field = &fields[field_idx];
            match extract_datum_from_arrow(batch, row_idx, field_idx, field.data_type())? {
                Some(datum) => builder.write_datum(pos, &datum, field.data_type()),
                None => builder.set_null_at(pos),
            }
        }
        Ok(builder.build())
    }

    /// Build a BinaryRow from typed Datum values using `BinaryRowBuilder`.
    /// `None` entries are written as null fields.