Function partition_record_batch 

pub fn partition_record_batch<'a>(
    record_batch: &'a RecordBatch,
    partition_fields: &[BoundPartitionField<'_>],
) -> Result<impl Iterator<Item = Result<(Vec<Value>, RecordBatch), ArrowError>> + 'a, ArrowError>

Partitions a record batch according to the given partition fields.

This function takes a record batch and partition field specifications, then splits the batch into multiple record batches based on unique combinations of partition values.

Arguments

• record_batch - The input record batch to partition
• partition_fields - The partition field specifications that define how to split the data

Returns

An iterator over results containing:

• A vector of partition values that identify the partition
• The record batch containing only rows matching those partition values

Errors

Returns an ArrowError if:

• Required columns are missing from the record batch
• Transformation operations fail
• Data type conversions fail