zachdisc commented on code in PR #12840:
URL: https://github.com/apache/iceberg/pull/12840#discussion_r2054907937
##########
spark/v3.5/spark/src/main/java/org/apache/iceberg/spark/actions/RewriteManifestsSparkAction.java:
##########
@@ -251,12 +282,40 @@ private List<ManifestFile> writeUnpartitionedManifests(
private List<ManifestFile> writePartitionedManifests(
ManifestContent content, Dataset<Row> manifestEntryDF, int numManifests)
{
+ // Extract desired clustering criteria into a dedicated column
+ Dataset<Row> clusteredManifestEntryDF;
+
+ if (partitionFieldClustering != null) {
+ LOG.info(
+ "Clustering manifests for specId {} by partition columns by {} ",
+ spec.specId(),
+ partitionFieldClustering);
+
+ // Map the top level partition column names to the column name
referenced within the manifest
+ // entry dataframe
+ Column[] actualPartitionColumns =
Review Comment:
Understood. will change.
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