gh-yzou commented on code in PR #4237:
URL: https://github.com/apache/polaris/pull/4237#discussion_r3314921888
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runtime/service/src/main/java/org/apache/polaris/service/catalog/common/CatalogUtils.java:
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@@ -95,4 +143,177 @@ public static void validateLocationsForTableLike(
}
});
}
+
+ /**
+ * Validate no location overlap exists between the entity path and its
sibling entities. This
+ * resolves all siblings at the same level as the target entity (namespaces
if the target entity
+ * is a namespace whose parent is the catalog, namespaces and tables
otherwise) and checks the
+ * base-location property of each. The target entity's base location may not
be a prefix or a
+ * suffix of any sibling entity's base location.
+ */
+ public static <T extends PolarisEntity & LocationBasedEntity> void
validateNoLocationOverlap(
Review Comment:
those functions are pure copy from IcebergCatalog.java
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