matthewgapp commented on code in PR #5197:
URL: https://github.com/apache/arrow-rs/pull/5197#discussion_r1454577175
##########
arrow-json/src/writer.rs:
##########
@@ -469,11 +469,67 @@ fn set_column_for_json_rows(
row.insert(col_name.to_string(),
serde_json::Value::Object(obj));
}
}
+ DataType::Decimal128(_precision, _scale) |
DataType::Decimal256(_precision, _scale) => {
+ to_json_float(rows, array, col_name, explicit_nulls)?;
+ }
_ => {
return Err(ArrowError::JsonError(format!(
- "data type {:?} not supported in nested map for json writer",
+ "data type {:?} not supported for json writer",
array.data_type()
- )))
+ )));
+ }
+ }
+ Ok(())
+}
+
+fn to_json_float(
+ rows: &mut [Option<JsonMap<String, Value>>],
+ array: &ArrayRef,
+ col_name: &str,
+ explicit_nulls: bool,
+) -> Result<(), ArrowError> {
+ let options = FormatOptions::default();
+ let formatter = ArrayFormatter::try_new(array.as_ref(), &options)?;
Review Comment:
@tustvold are you instead referencing this method in the `arrow_array`
crate?
https://github.com/apache/arrow-rs/blob/bc96ca3f006ca90f86c035c247584ac3bc468b55/arrow-cast/src/display.rs#L441
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