transform_arrow

iceberg_rust::arrow::transform

Function transform_arrow 

Source 
pub fn transform_arrow(
    array: ArrayRef,
    transform: &Transform,
) -> Result<ArrayRef, ArrowError>
Expand description

Applies an Iceberg partition transform to an Arrow array

§Arguments

  • array - The Arrow array to transform
  • transform - The Iceberg partition transform to apply

§Returns

  • Ok(ArrayRef) - A new Arrow array containing the transformed values
  • Err(ArrowError) - If the transform cannot be applied to the array’s data type

§Supported Transforms

  • Identity - Returns the input array unchanged
  • Day - Extracts day from date32 or timestamp
  • Month - Extracts month from date32 or timestamp
  • Year - Extracts year from date32 or timestamp
  • Hour - Extracts hour from timestamp
  • Int16 - Truncate value
  • Int32 - Truncate value
  • Int64 - Truncate value
  • Int32 - Use hash of value to repart it between bucket
  • Int64 - Use hash of value to repart it between bucket
  • Date32 - Use hash of value to repart it between bucket
  • Time32 - Use hash of value to repart it between bucket
  • Utf8 - Use hash of value to repart it between bucket