caican00 commented on code in PR #4292:
URL: https://github.com/apache/gravitino/pull/4292#discussion_r1703672068
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catalogs/catalog-lakehouse-paimon/src/main/java/org/apache/gravitino/catalog/lakehouse/paimon/GravitinoPaimonTable.java:
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@@ -102,6 +121,77 @@ public static Transform[]
toGravitinoPartitioning(List<String> partitionKeys) {
return
partitionKeys.stream().map(Transforms::identity).toArray(Transform[]::new);
}
+ private static List<String> getPartitionKeys(Transform[] partitioning) {
+ if (partitioning == null) {
+ return Collections.emptyList();
+ }
+
+ return Arrays.stream(partitioning)
+ .map(
+ partition -> {
+ NamedReference[] references = partition.references();
+ Preconditions.checkArgument(
+ references.length == 1, "Partitioning column must be
single-column, like 'a'.");
+ return references[0].toString();
+ })
+ .collect(Collectors.toList());
+ }
+
+ private List<String> getPrimaryKeysFromIndexes(Index[] indexes) {
+ if (indexes == null || indexes.length == 0) {
+ return Collections.emptyList();
+ }
+
+ Preconditions.checkArgument(
Review Comment:
this check seems to help better understand `Index primaryKeyIndex =
indexes[0];`
WDYT？
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