liukun4515 commented on code in PR #2041:
URL: https://github.com/apache/arrow-rs/pull/2041#discussion_r917773772
##########
arrow/src/array/array_decimal.rs:
##########
@@ -148,6 +148,32 @@ pub trait BasicDecimalArray<T: BasicDecimal, U:
From<ArrayData>>:
self.value(row).to_string()
}
+ /// Build a decimal array from [`FixedSizeBinaryArray`].
+ ///
+ /// This function does not check the validation of each
+ /// value for performance reason.
+ fn from_fixed_size_binary_array(
+ v: FixedSizeBinaryArray,
+ precision: usize,
+ scale: usize,
+ ) -> U {
+ assert!(
+ v.value_length() == Self::VALUE_LENGTH,
+ "Value length of the array ({}) must equal to the byte width of
the decimal ({})",
Review Comment:
But from this message, this function is just used to convert to the decimal
array.
@HaoYang670
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