jayzhan211 commented on code in PR #14057:
URL: https://github.com/apache/datafusion/pull/14057#discussion_r1911863137
##########
datafusion/common/src/dfschema.rs:
##########
@@ -319,52 +465,56 @@ impl DFSchema {
qualifiers.push(qualifier.cloned());
}
}
- let mut metadata = self.inner.metadata.clone();
- metadata.extend(other_schema.inner.metadata.clone());
+ let mut metadata = self.inner.schema.metadata.clone();
+ metadata.extend(other_schema.inner.schema.metadata.clone());
let finished = schema_builder.finish();
let finished_with_metadata = finished.with_metadata(metadata);
- self.inner = finished_with_metadata.into();
- self.field_qualifiers.extend(qualifiers);
+ self.inner.schema = finished_with_metadata.into();
+ self.inner.field_qualifiers.extend(qualifiers);
}
/// Get a list of fields
pub fn fields(&self) -> &Fields {
- &self.inner.fields
+ &self.inner.schema.fields
}
/// Returns an immutable reference of a specific `Field` instance selected
using an
/// offset within the internal `fields` vector
pub fn field(&self, i: usize) -> &Field {
- &self.inner.fields[i]
+ if i >= self.inner.len() {
+ if let Some(metadata) = &self.metadata {
+ return metadata.field(i - self.inner.len());
+ }
+ }
+ self.inner.field(i)
}
/// Returns an immutable reference of a specific `Field` instance selected
using an
/// offset within the internal `fields` vector and its qualifier
pub fn qualified_field(&self, i: usize) -> (Option<&TableReference>,
&Field) {
- (self.field_qualifiers[i].as_ref(), self.field(i))
+ if i >= self.inner.len() {
+ if let Some(metadata) = &self.metadata {
+ return metadata.qualified_field(i - self.inner.len());
+ }
+ }
+ self.inner.qualified_field(i)
Review Comment:
`(-1 as usize)` what is this trick? This is a large offset, we have vector
instead of map, how does this work?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For additional commands, e-mail: github-h...@datafusion.apache.org
