zeroshade commented on code in PR #14278:
URL: https://github.com/apache/arrow/pull/14278#discussion_r984059003
##########
go/arrow/csv/writer.go:
##########
@@ -219,6 +219,38 @@ func (w *Writer) Write(record arrow.Record) error {
recs[i][j] = w.nullValue
}
}
+ case *arrow.Decimal128Type:
+ fieldType :=
w.schema.Field(j).Type.(*arrow.Decimal128Type)
+ scale := fieldType.Scale
+ arr := col.(*array.Decimal128)
+ for i := 0; i < arr.Len(); i++ {
+ if arr.IsValid(i) {
+ decString :=
arr.Value(i).BigInt().Text(10)
+ decimalLocation := len(decString) -
int(scale)
+ if decimalLocation >= 0 && scale > 0 {
+ decString =
decString[:decimalLocation] + "." + decString[decimalLocation:]
+ }
+ recs[i][j] = decString
Review Comment:
No prob! At this rate I should probably just incorporate this to the
`decimal128.Num` and `decimal256.Num` types with a `ToString(precision, scale
int32) string` method, but that can be a separate change. :smile:
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