ZachDischner commented on code in PR #9731:
URL: https://github.com/apache/iceberg/pull/9731#discussion_r1802300273
##########
spark/v3.5/spark/src/main/java/org/apache/iceberg/spark/actions/RewriteManifestsSparkAction.java:
##########
@@ -160,6 +172,32 @@ public RewriteManifestsSparkAction stagingLocation(String
newStagingLocation) {
return this;
}
+ @Override
+ public RewriteManifestsSparkAction clusterBy(List<String> clusteringColumns)
{
+ // Collect set of allowable partition columns to cluster on
+ Set<String> availablePartitionNames =
+
spec.fields().stream().map(PartitionField::name).collect(Collectors.toSet());
+
+ // Check if these partition fields are included in the spec
+ Preconditions.checkArgument(
+ clusteringColumns.stream().allMatch(availablePartitionNames::contains),
+ "Cannot use custom clustering to rewrite manifests '%s'. All partition
columns must be "
+ + "defined in the current partition spec: %s. Choose from the
available partitionable columns: %s",
+ clusteringColumns,
+ this.spec.specId(),
Review Comment:
Can change
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