yongkyunlee commented on code in PR #8254:
URL: https://github.com/apache/arrow-rs/pull/8254#discussion_r2314778575
##########
arrow-avro/src/reader/record.rs:
##########
@@ -590,10 +590,23 @@ impl Decoder {
)));
}
}
+ // Extract the value field nullability from the schema
+ let is_value_nullable = match map_field.data_type() {
+ DataType::Struct(fields) => fields
+ .iter()
+ .find(|f| f.name() == "value")
+ .map(|f| f.is_nullable())
+ .unwrap_or(false),
+ _ => true, // default to nullable
+ };
let entries_struct = StructArray::new(
Fields::from(vec![
Arc::new(ArrowField::new("key", DataType::Utf8,
false)),
- Arc::new(ArrowField::new("value",
val_arr.data_type().clone(), true)),
+ Arc::new(ArrowField::new(
+ "value",
+ val_arr.data_type().clone(),
+ is_value_nullable,
Review Comment:
That makes sense. I'll close this PR and raise a new PR later with only
tests.
##########
arrow-avro/src/reader/record.rs:
##########
@@ -590,10 +590,23 @@ impl Decoder {
)));
}
}
+ // Extract the value field nullability from the schema
+ let is_value_nullable = match map_field.data_type() {
+ DataType::Struct(fields) => fields
+ .iter()
+ .find(|f| f.name() == "value")
+ .map(|f| f.is_nullable())
+ .unwrap_or(false),
+ _ => true, // default to nullable
+ };
let entries_struct = StructArray::new(
Fields::from(vec![
Arc::new(ArrowField::new("key", DataType::Utf8,
false)),
- Arc::new(ArrowField::new("value",
val_arr.data_type().clone(), true)),
+ Arc::new(ArrowField::new(
+ "value",
+ val_arr.data_type().clone(),
+ is_value_nullable,
Review Comment:
Thanks for the comments!
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