ajantha-bhat commented on code in PR #6582:
URL: https://github.com/apache/iceberg/pull/6582#discussion_r1080799876
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core/src/main/java/org/apache/iceberg/puffin/StandardBlobTypes.java:
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@@ -26,4 +26,6 @@ private StandardBlobTypes() {}
* href="https://datasketches.apache.org/";>Apache DataSketches</a> library
*/
public static final String APACHE_DATASKETCHES_THETA_V1 =
"apache-datasketches-theta-v1";
+
+ public static final String NDV_BLOB = "ndv-blob";
Review Comment:
@huaxingao: I am just wondering why are we not using the real sketches and
update them incrementally. Isn't calling `APPROX_COUNT_DISTINCT` to compute
freshly every time gonna be expensive in the long run?
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