rdblue commented on a change in pull request #3966:
URL: https://github.com/apache/iceberg/pull/3966#discussion_r801828625
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File path: core/src/main/java/org/apache/iceberg/util/ZOrderByteUtils.java
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@@ -108,54 +108,70 @@ private ZOrderByteUtils() {
* Strings are lexicographically sortable BUT if different byte array
lengths will
* ruin the Z-Ordering. (ZOrder requires that a given column contribute the
same number of bytes every time).
* This implementation just uses a set size to for all output byte
representations. Truncating longer strings
- * and right padding 0 for shorter strings.
+ * and right padding 0 for shorter strings. Requires UTF8 (or ASCII)
encoding for ordering guarantees to hold.
Review comment:
I agree. We should ensure that we use UTF-8 to convert to bytes.
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