plusplusjiajia commented on code in PR #6993:
URL: https://github.com/apache/paimon/pull/6993#discussion_r2685292296


##########
paimon-common/src/main/java/org/apache/paimon/predicate/Predicate.java:
##########
@@ -32,8 +35,16 @@
  * @since 0.4.0
  */
 @Public
+@JsonTypeInfo(
+        use = JsonTypeInfo.Id.NAME,
+        include = JsonTypeInfo.As.PROPERTY,
+        property = Predicate.FIELD_PREDICATE)
+@JsonSubTypes({
+    @JsonSubTypes.Type(value = LeafPredicate.class, name = LeafPredicate.NAME),
+    @JsonSubTypes.Type(value = CompoundPredicate.class, name = 
CompoundPredicate.NAME)
+})
 public interface Predicate extends Serializable {
-
+    String FIELD_PREDICATE = "predicate";

Review Comment:
   > Let's modify it to `kind`?
   
   done



##########
paimon-common/src/main/java/org/apache/paimon/predicate/Transform.java:
##########
@@ -21,11 +21,26 @@
 import org.apache.paimon.data.InternalRow;
 import org.apache.paimon.types.DataType;
 
+import 
org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonSubTypes;
+import 
org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonTypeInfo;
+
 import java.io.Serializable;
 import java.util.List;
 
 /** Represents a transform function. */
+@JsonTypeInfo(
+        use = JsonTypeInfo.Id.NAME,
+        include = JsonTypeInfo.As.PROPERTY,
+        property = Transform.FIELD_TRANSFORM)
+@JsonSubTypes({
+    @JsonSubTypes.Type(value = FieldTransform.class, name = 
FieldTransform.NAME),
+    @JsonSubTypes.Type(value = CastTransform.class, name = CastTransform.NAME),
+    @JsonSubTypes.Type(value = ConcatTransform.class, name = 
ConcatTransform.NAME),
+    @JsonSubTypes.Type(value = ConcatWsTransform.class, name = 
ConcatWsTransform.NAME),
+    @JsonSubTypes.Type(value = UpperTransform.class, name = 
UpperTransform.NAME)
+})
 public interface Transform extends Serializable {
+    String FIELD_TRANSFORM = "transform";

Review Comment:
   > "name" is better.
   
   done



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