RussellSpitzer commented on a change in pull request #3775:
URL: https://github.com/apache/iceberg/pull/3775#discussion_r772586836
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File path: core/src/main/java/org/apache/iceberg/util/SnapshotUtil.java
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@@ -102,43 +102,37 @@ public static Snapshot oldestAncestor(Table table) {
}
/**
- * Traverses the history of the table's current snapshot and:
- * 1. returns null, if no snapshot exists or target timestamp is more recent
than the current snapshot.
- * 2. else return the first snapshot which satisfies {@literal >=}
targetTimestamp.
- * <p>
- * Given the snapshots (with timestamp): [S1 (10), S2 (11), S3 (12), S4 (14)]
- * <p>
- * firstSnapshotAfterTimestamp(table, x {@literal <=} 10) = S1
- * firstSnapshotAfterTimestamp(table, 11) = S2
- * firstSnapshotAfterTimestamp(table, 13) = S4
- * firstSnapshotAfterTimestamp(table, 14) = S4
- * firstSnapshotAfterTimestamp(table, x {@literal >} 14) = null
- * <p>
- * where x is the target timestamp in milliseconds and Si is the snapshot
+ * Traverses the history of the table's current snapshot and finds the first
snapshot committed after the given time.
*
* @param table a table
- * @param targetTimestampMillis a timestamp in milliseconds
- * @return the first snapshot which satisfies {@literal >=} targetTimestamp,
or null if the current snapshot is
- * more recent than the target timestamp
+ * @param timestampMillis a timestamp in milliseconds
+ * @return the first snapshot after the given timestamp, or null if the
current snapshot is older than the timestamp
Review comment:
I would add the word "committed" again here and before all the "afters".
I don't know why I can't handle both concepts in my head at the same time, but
I keep visualizing a linked list fo snapshots.
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