jecsand838 commented on code in PR #8349:
URL: https://github.com/apache/arrow-rs/pull/8349#discussion_r2365863049
##########
arrow-avro/src/reader/record.rs:
##########
@@ -852,6 +1303,94 @@ impl Decoder {
Ok(())
}
+ fn decode_with_promotion(
+ &mut self,
+ buf: &mut AvroCursor<'_>,
+ promotion: Promotion,
+ ) -> Result<(), ArrowError> {
+ match promotion {
+ Promotion::Direct => self.decode(buf),
+ Promotion::IntToLong => match self {
+ Self::Int64(v) => {
+ v.push(buf.get_int()? as i64);
+ Ok(())
+ }
+ _ => Err(ArrowError::ParseError(
+ "Promotion Int->Long target mismatch".into(),
+ )),
+ },
+ Promotion::IntToFloat => match self {
+ Self::Float32(v) => {
+ v.push(buf.get_int()? as f32);
+ Ok(())
+ }
+ _ => Err(ArrowError::ParseError(
+ "Promotion Int->Float target mismatch".into(),
+ )),
+ },
+ Promotion::IntToDouble => match self {
+ Self::Float64(v) => {
+ v.push(buf.get_int()? as f64);
+ Ok(())
+ }
+ _ => Err(ArrowError::ParseError(
+ "Promotion Int->Double target mismatch".into(),
+ )),
+ },
+ Promotion::LongToFloat => match self {
+ Self::Float32(v) => {
+ v.push(buf.get_long()? as f32);
+ Ok(())
+ }
+ _ => Err(ArrowError::ParseError(
+ "Promotion Long->Float target mismatch".into(),
+ )),
+ },
+ Promotion::LongToDouble => match self {
Review Comment:
Yes it does, per the
[spec](https://avro.apache.org/docs/1.11.1/specification/#schema-resolution)
```
long is promotable to float or double
```
100% get what you're saying though.
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