slinkydeveloper commented on a change in pull request #18872:
URL: https://github.com/apache/flink/pull/18872#discussion_r811934184
##########
File path:
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/serde/AggregateCallJsonSerializer.java
##########
@@ -18,47 +18,35 @@
package org.apache.flink.table.planner.plan.nodes.exec.serde;
-import org.apache.flink.table.functions.BuiltInFunctionDefinition;
-import org.apache.flink.table.functions.FunctionDefinition;
-import org.apache.flink.table.functions.FunctionKind;
-import
org.apache.flink.table.planner.functions.bridging.BridgingSqlAggFunction;
-import org.apache.flink.table.planner.functions.utils.AggSqlFunction;
-import org.apache.flink.table.utils.EncodingUtils;
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.configuration.ReadableConfig;
+import org.apache.flink.table.api.config.TableConfigOptions;
+import
org.apache.flink.table.api.config.TableConfigOptions.CatalogPlanCompilation;
import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonGenerator;
import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.SerializerProvider;
import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ser.std.StdSerializer;
import org.apache.calcite.rel.core.AggregateCall;
-import org.apache.calcite.sql.SqlAggFunction;
import java.io.IOException;
/**
- * JSON serializer for {@link AggregateCall}. refer to {@link
AggregateCallJsonDeserializer} for
- * deserializer.
+ * JSON serializer for {@link AggregateCall}.
+ *
+ * @see AggregateCallJsonDeserializer for the reverse operation
*/
+@Internal
public class AggregateCallJsonSerializer extends StdSerializer<AggregateCall> {
Review comment:
Why public?
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