alamb commented on code in PR #7720:
URL: https://github.com/apache/arrow-rs/pull/7720#discussion_r2160334082
##########
parquet-variant/src/builder.rs:
##########
@@ -484,13 +486,33 @@ impl<'a> ObjectBuilder<'a> {
}
}
+ fn check_duplicate_field_name(&self, key: &str) -> Result<(), ArrowError> {
+ if let Some(field_name_id) = self.parent.dict.get(key) {
+ if self.fields.contains_key(field_name_id) {
+ return Err(ArrowError::InvalidArgumentError(
+ "field name must be unique and already exists in this
object".to_string(),
+ ));
+ }
+ }
+
+ Ok(())
+ }
+
/// Add a field with key and value to the object
- pub fn append_value<'m, 'd, T: Into<Variant<'m, 'd>>>(&mut self, key:
&str, value: T) {
- let id = self.parent.add_key(key);
+ pub fn append_value<'m, 'd, T: Into<Variant<'m, 'd>>>(
Review Comment:
The other alternate to erroring on adding a new field would be to just
overwrite the existing value, which I think is more inline with other Rust
collection apis such as
https://doc.rust-lang.org/std/collections/struct.HashMap.html#method.insert
##########
parquet-variant/src/builder.rs:
##########
@@ -484,13 +486,33 @@ impl<'a> ObjectBuilder<'a> {
}
}
+ fn check_duplicate_field_name(&self, key: &str) -> Result<(), ArrowError> {
+ if let Some(field_name_id) = self.parent.dict.get(key) {
+ if self.fields.contains_key(field_name_id) {
+ return Err(ArrowError::InvalidArgumentError(
Review Comment:
If we are going to make this an error, I think we should at least return the
name of the field in the message to make it easier to debug
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