Method slice

arrow-array/src/record_batch.rs:681–695

Return a new RecordBatch where each column is sliced according to `offset` and `length` # Panics Panics if `offset` with `length` is greater than column length.

(&self, offset: usize, length: usize)

    ///
    /// Panics if `offset` with `length` is greater than column length.
    pub fn slice(&self, offset: usize, length: usize) -> RecordBatch {
        assert!((offset + length) <= self.num_rows());

        let columns = self
            .columns()
            .iter()
            .map(|column| column.slice(offset, length))
            .collect();

        Self {
            schema: self.schema.clone(),
            columns,
            row_count: length,
        }
    }

    /// Create a `RecordBatch` from an iterable list of pairs of the
    /// form `(field_name, array)`, with the same requirements on