jackye1995 commented on a change in pull request #2074:
URL: https://github.com/apache/iceberg/pull/2074#discussion_r556296067
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File path: api/src/main/java/org/apache/iceberg/Accessors.java
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@@ -26,6 +26,21 @@
import org.apache.iceberg.types.TypeUtil;
import org.apache.iceberg.types.Types;
+
+/**
+ * Position2Accessor and Position3Accessor here is an optimization. For a
nested schema like:
+ *
+ * root
+ * |-- a: struct (nullable = false)
+ * | |-- b: struct (nullable = false)
+ * | | -- c: string (containsNull = false)
+ *
+ * Then we will use Position3Accessor to access nested field 'c'. It can be
accessed like this:
+ * {@code row.get(p0, StructLike.class).get(p1, StructLike.class).get(p2,
javaClass).
Review comment:
`}` is missing in the end.
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