viirya commented on code in PR #4028:
URL: https://github.com/apache/arrow-rs/pull/4028#discussion_r1160157083
##########
arrow-array/src/record_batch.rs:
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@@ -204,6 +204,25 @@ impl RecordBatch {
})
}
+ /// Override the schema of this [`RecordBatch`]
+ ///
+ /// Returns an error if `schema` is not a superset of the current schema
+ /// as determined by [`Schema::contains`]
+ pub fn with_schema(self, schema: SchemaRef) -> Result<Self, ArrowError> {
+ if !schema.contains(self.schema.as_ref()) {
+ return Err(ArrowError::SchemaError(format!(
+ "{schema} is not a superset of {}",
+ self.schema
+ )));
+ }
Review Comment:
It looks like this is particular used for metadata only? Although looks like
you can override the schema with new field (superset?), but this batch doesn't
have it.
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