zeroshade commented on code in PR #43957:
URL: https://github.com/apache/arrow/pull/43957#discussion_r1773729468
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cpp/src/arrow/util/decimal.cc:
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@@ -92,6 +93,12 @@ struct DecimalRealConversion : public
BaseDecimalRealConversion {
constexpr int kMantissaBits = RealTraits<Real>::kMantissaBits;
constexpr int kMantissaDigits = RealTraits<Real>::kMantissaDigits;
+ // to avoid precision and rounding issues, we'll unconditionally
+ // throw Decimal32 to the approx algorithm instead.
Review Comment:
Issue opened and referenced here (#44216)
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