Module polars_arrow::compute::cast

Available on crate feature compute_cast only.

Defines different casting operators such as cast or [primitive_to_binary].

Structs

• CastOptionsImpl
  options defining how Cast kernels behave

Functions

• binary_large_to_binary
  Conversion of binary
• binary_to_binview
• binary_to_dictionary
  Cast BinaryArray to DictionaryArray, also known as packing.
• binary_to_large_binary
  Conversion of binary
• binary_to_large_utf8
  Conversion to utf8
• binary_to_list
  Conversion of binary
• binary_to_utf8
  Conversion to utf8
• boolean_to_binaryview
  Casts the BooleanArray to a [BinaryArray], casting trues to "1" and falses to "0"
• boolean_to_primitive
  Casts the BooleanArray to a PrimitiveArray.
• boolean_to_utf8view
• cast
  Cast array to the provided data type and return a new Array with type to_type, if possible.
• cast_default
• cast_unchecked
• date32_to_date64
  Conversion of dates
• date64_to_date32
  Conversion of dates
• days_ms_to_months_days_ns
  Casts days_mss to months_days_ns. This operation is infalible and lossless.
• decimal_to_decimal
  Returns a PrimitiveArray<i128> with the casted values. Values are None on overflow
• decimal_to_float
  Returns a PrimitiveArray<i128> with the casted values. Values are None on overflow
• decimal_to_integer
  Returns a PrimitiveArray<i128> with the casted values. Values are None on overflow
• dictionary_to_dictionary_keys
  Casts a DictionaryArray to a new DictionaryArray backed by a different physical type of the keys, while keeping the values equal.
• dictionary_to_dictionary_values
  Casts a DictionaryArray to a new DictionaryArray by keeping the keys and casting the values to values_type.
• f16_to_f32
  Casts f16 into f32
• fixed_size_binary_binary
  Conversion of FixedSizeBinary to Binary.
• fixed_size_binary_to_binview
• float_to_decimal
  Returns a PrimitiveArray<i128> with the casted values. Values are None on overflow
• integer_to_decimal
  Returns a PrimitiveArray<i128> with the casted values. Values are None on overflow
• months_to_months_days_ns
  Casts months represented as i32s to months_days_ns. This operation is infalible and lossless.
• naive_timestamp_to_utf8
  Returns a Utf8Array where every element is the utf8 representation of the timestamp in the rfc3339 format.
• primitive_as_primitive
  Cast PrimitiveArray as a PrimitiveArray Same as number as to_number_type in rust
• primitive_to_boolean
  Returns a BooleanArray where every element is different from zero. Validity is preserved.
• primitive_to_dictionary
  Cast PrimitiveArray to DictionaryArray. Also known as packing.
• primitive_to_primitive
  Cast PrimitiveArray to a PrimitiveArray of another physical type via numeric conversion.
• primitive_to_same_primitive
  Cast PrimitiveArray to a PrimitiveArray of the same physical type. This is O(1).
• time32_to_time64
  Conversion of time
• time32ms_to_time32s
  Conversion of times
• time32s_to_time32ms
  Conversion of times
• time64_to_time32
  Conversion of time
• time64ns_to_time64us
  Conversion of times
• time64us_to_time64ns
  Conversion of times
• timestamp_to_date32
  Conversion of timestamp
• timestamp_to_date64
  Conversion of timestamp
• timestamp_to_timestamp
  Conversion of timestamp
• timestamp_to_utf8
  Returns a Utf8Array where every element is the utf8 representation of the timestamp in the rfc3339 format.
• utf8_large_to_utf8
  Conversion of utf8
• utf8_to_binary
  Conversion to binary
• utf8_to_dictionary
  Cast Utf8Array to DictionaryArray, also known as packing.
• utf8_to_large_utf8
  Conversion of utf8
• utf8_to_utf8view
• utf8view_to_utf8
• wrapping_dictionary_to_dictionary_keys
  Similar to dictionary_to_dictionary_keys, but overflowing cast is wrapped
• wrapping_dictionary_to_dictionary_values
  Similar to dictionary_to_dictionary_values, but overflowing cast is wrapped