yyanyy commented on a change in pull request #1975:
URL: https://github.com/apache/iceberg/pull/1975#discussion_r552347390
##########
File path: api/src/main/java/org/apache/iceberg/ContentFile.java
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@@ -141,4 +141,13 @@
* null value counts, or nan value counts
*/
F copyWithoutStats();
+
+ /**
+ * Returns the sort order id of this file, which describes how the file is
ordered.
+ * This information will be useful for merging data and equality delete
files more efficiently
+ * when they share the same sort order id.
+ */
+ default Integer sortOrderId() {
Review comment:
I was thinking to add it to ensure backward compatibility in case people
implement their own `ContentFile`, do you think it's unlikely so it's safe for
us to not have default?
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