deniskuzZ commented on code in PR #12629:
URL: https://github.com/apache/iceberg/pull/12629#discussion_r2013847624
##########
core/src/main/java/org/apache/iceberg/PartitionStatsUtil.java:
##########
@@ -53,14 +56,43 @@ public static Collection<PartitionStats> computeStats(Table
table, Snapshot snap
StructType partitionType = Partitioning.partitionType(table);
List<ManifestFile> manifests = snapshot.allManifests(table.io());
- Queue<PartitionMap<PartitionStats>> statsByManifest =
Queues.newConcurrentLinkedQueue();
- Tasks.foreach(manifests)
- .stopOnFailure()
- .throwFailureWhenFinished()
- .executeWith(ThreadPools.getWorkerPool())
- .run(manifest -> statsByManifest.add(collectStats(table, manifest,
partitionType)));
+ return collectStats(table, manifests, partitionType).values();
+ }
+
+ /**
+ * Computes the partition stats incrementally after the given snapshot to
current snapshot.
+ *
+ * @param table the table for which partition stats to be computed.
+ * @param afterSnapshot the snapshot after which partition stats is computed
(exclusive).
+ * @param currentSnapshot the snapshot till which partition stats is
computed (inclusive).
+ * @return the {@link PartitionMap} of {@link PartitionStats}
+ */
+ public static PartitionMap<PartitionStats> computeStatsIncremental(
Review Comment:
agree, ````analyze table <tbl> compute statistics```` could be exercised for
that.
However, why not add just an extra param like `forceRecompute/recompute`
instead of diff method signatures?
##########
core/src/main/java/org/apache/iceberg/PartitionStatsUtil.java:
##########
@@ -53,14 +56,43 @@ public static Collection<PartitionStats> computeStats(Table
table, Snapshot snap
StructType partitionType = Partitioning.partitionType(table);
List<ManifestFile> manifests = snapshot.allManifests(table.io());
- Queue<PartitionMap<PartitionStats>> statsByManifest =
Queues.newConcurrentLinkedQueue();
- Tasks.foreach(manifests)
- .stopOnFailure()
- .throwFailureWhenFinished()
- .executeWith(ThreadPools.getWorkerPool())
- .run(manifest -> statsByManifest.add(collectStats(table, manifest,
partitionType)));
+ return collectStats(table, manifests, partitionType).values();
+ }
+
+ /**
+ * Computes the partition stats incrementally after the given snapshot to
current snapshot.
+ *
+ * @param table the table for which partition stats to be computed.
+ * @param afterSnapshot the snapshot after which partition stats is computed
(exclusive).
+ * @param currentSnapshot the snapshot till which partition stats is
computed (inclusive).
+ * @return the {@link PartitionMap} of {@link PartitionStats}
+ */
+ public static PartitionMap<PartitionStats> computeStatsIncremental(
Review Comment:
agree, ````analyze table <tbl> compute statistics```` could be exercised for
that.
However, why not add just an extra param like `forceRecompute`/`recompute`
instead of diff method signatures?
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