pengzhiwei2018 commented on a change in pull request #2645:
URL: https://github.com/apache/hudi/pull/2645#discussion_r601147731
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File path:
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/io/HoodieWriteHandle.java
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@@ -54,9 +53,18 @@
public abstract class HoodieWriteHandle<T extends HoodieRecordPayload, I, K,
O> extends HoodieIOHandle<T, I, K, O> {
private static final Logger LOG =
LogManager.getLogger(HoodieWriteHandle.class);
+ /**
+ * The input schema of the incoming dataframe.
+ */
+ protected final Schema inputSchema;
Review comment:
For the case of MergeInto with a custom `HoodiePayload`, the input
schema may be different from the write schema as the are transformation logical
in the `payload`. So I distinguish between input and write schema.
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