zeroshade commented on a change in pull request #11359:
URL: https://github.com/apache/arrow/pull/11359#discussion_r741364114
##########
File path: go/arrow/array/decimal128.go
##########
@@ -229,6 +253,67 @@ func (b *Decimal128Builder) newData() (data *Data) {
return
}
+func (b *Decimal128Builder) unmarshalOne(dec *json.Decoder) error {
+ t, err := dec.Token()
+ if err != nil {
+ return err
+ }
+
+ var out *big.Float
+
+ switch v := t.(type) {
+ case float64:
+ out = big.NewFloat(v)
+ case string:
+ out, _, err = big.ParseFloat(v, 10, 0, big.ToNearestAway)
Review comment:
No strong rationale, just happened to be what got me the closest to the
value I had input when I used it and I couldn't think of a good way to easily
make this configurable in the current interface. I'll add a comment to document
it.
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