feat: add hint containing field names to RelCommon

Allows the output field names of any relation to be set or reset Signed-off-by: andrew-coleman <[email protected]> Signed-off-by: Andrew Coleman <[email protected]>
substrait-io · Sep 4, 2024 · cd03365 · cd03365
1 parent aab0153
commit cd03365
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/proto/substrait/algebra.proto b/proto/substrait/algebra.proto
@@ -41,6 +41,9 @@ message RelCommon {
     // Name (alias) for this relation. Can be used for e.g. qualifying the relation (see e.g.
     // Spark's SubqueryAlias), or debugging.
     string alias = 3;
+    // Assigns alternative output field names for any relation.  Equivalent to the names field
+    // in RelRoot but applies to the output of the relation this RelCommon is attached to.
+    repeated string output_names = 4;
 
     substrait.extensions.AdvancedExtension advanced_extension = 10;