Function extract_decimal_column 

pub fn extract_decimal_column<'a>(
    record_batch: &'a RecordBatch,
    column_key: &'static str,
) -> Result<&'a Decimal128Array, EncodingError>

Extracts a decimal column by its schema name.

Errors

Returns an error if the named column is missing or is not Decimal128(38, 16).