liukun4515 commented on code in PR #2360:
URL: https://github.com/apache/arrow-rs/pull/2360#discussion_r944062951
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arrow/src/array/array_decimal.rs:
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@@ -332,15 +331,30 @@ impl Decimal128Array {
impl Decimal256Array {
/// Validates decimal values in this array can be properly interpreted
/// with the specified precision.
- pub fn validate_decimal_precision(&self, precision: usize) -> Result<()> {
- if precision < self.precision {
- for v in self.iter().flatten() {
- validate_decimal256_precision(&v.to_big_int(), precision)?;
+ fn validate_decimal_precision(&self, precision: usize) -> Result<()> {
+ let current_end = self.data.len();
+ let mut current: usize = 0;
+ let data = &self.data;
+
+ while current != current_end {
+ if self.is_null(current) {
+ current += 1;
+ continue;
+ } else {
+ let offset = current + data.offset();
+ current += 1;
+ let raw_val = unsafe {
Review Comment:
`value_unchecked` also use it.
Maybe you can extract them with follow-up pr
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