Add API changes for statistics information in table metadata

.palantir/revapi.yml

@@ -147,6 +147,12 @@ acceptedBreaks:
     - code: "java.method.addedToInterface"
       new: "method org.apache.iceberg.ReplacePartitions org.apache.iceberg.ReplacePartitions::validateNoConflictingDeletes()"
       justification: "Accept all changes prior to introducing API compatibility checks"
+    - code: "java.method.addedToInterface"
+      new: "method org.apache.iceberg.UpdateStatistics org.apache.iceberg.Table::updateStatistics()"
+      justification: "new API method"
+    - code: "java.method.addedToInterface"
+      new: "method org.apache.iceberg.UpdateStatistics org.apache.iceberg.Transaction::updateStatistics()"
+      justification: "new API method"
     - code: "java.method.addedToInterface"
       new: "method org.apache.iceberg.expressions.Expression org.apache.iceberg.Scan<ThisT,\
         \ T extends org.apache.iceberg.ScanTask, G extends org.apache.iceberg.ScanTaskGroup<T\

api/src/main/java/org/apache/iceberg/Table.java

@@ -263,6 +263,17 @@ default AppendFiles newFastAppend() {
    */
   DeleteFiles newDelete();
 
+  /**
+   * Create a new {@link UpdateStatistics update table statistics API} to add or remove statistics
+   * files in this table.
+   *
+   * @return a new {@link UpdateStatistics}
+   */
+  default UpdateStatistics updateStatistics() {
+    throw new UnsupportedOperationException(
+        "Updating statistics is not supported by " + getClass().getName());
+  }
+
   /**
    * Create a new {@link ExpireSnapshots expire API} to manage snapshots in this table and commit.
    *

api/src/main/java/org/apache/iceberg/Transaction.java

@@ -137,6 +137,17 @@ default AppendFiles newFastAppend() {
    */
   DeleteFiles newDelete();
 
+  /**
+   * Create a new {@link UpdateStatistics update table statistics API} to add or remove statistics
+   * files in this table.
+   *
+   * @return a new {@link UpdateStatistics}
+   */
+  default UpdateStatistics updateStatistics() {
+    throw new UnsupportedOperationException(
+        "Updating statistics is not supported by " + getClass().getName());
+  }
+
   /**
    * Create a new {@link ExpireSnapshots expire API} to manage snapshots in this table.
    *

api/src/main/java/org/apache/iceberg/UpdateStatistics.java

@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg;
+
+/** API for updating statistics files in a table. */
+public interface UpdateStatistics extends PendingUpdate<Snapshot> {
+  /**
+   * Set the table's statistics file for given snapshot, replacing the previous statistics file for
+   * the snapshot if any exists.
+   *
+   * @return this for method chaining
+   */
+  UpdateStatistics setStatistics(long snapshotId, StatisticsFile statisticsFile);
+
+  /**
+   * Remove the table's statistics file for given snapshot.
+   *
+   * @return this for method chaining
+   */
+  UpdateStatistics removeStatistics(long snapshotId);
+}

core/src/main/java/org/apache/iceberg/BaseMetadataTable.java

@@ -223,6 +223,11 @@ public DeleteFiles newDelete() {
     throw new UnsupportedOperationException("Cannot delete from a metadata table");
   }
 
+  @Override
+  public UpdateStatistics updateStatistics() {
+    throw new UnsupportedOperationException("Cannot update statistics of a metadata table");
+  }
+
   @Override
   public ExpireSnapshots expireSnapshots() {
     throw new UnsupportedOperationException("Cannot expire snapshots from a metadata table");

core/src/main/java/org/apache/iceberg/BaseTransaction.java

@@ -711,6 +711,11 @@ public DeleteFiles newDelete() {
       return BaseTransaction.this.newDelete();
     }
 
+    @Override
+    public UpdateStatistics updateStatistics() {
+      return BaseTransaction.this.updateStatistics();
+    }
+
     @Override
     public ExpireSnapshots expireSnapshots() {
       return BaseTransaction.this.expireSnapshots();

core/src/main/java/org/apache/iceberg/CommitCallbackTransaction.java

@@ -101,6 +101,11 @@ public DeleteFiles newDelete() {
     return wrapped.newDelete();
   }
 
+  @Override
+  public UpdateStatistics updateStatistics() {
+    return wrapped.updateStatistics();
+  }
+
   @Override
   public ExpireSnapshots expireSnapshots() {
     return wrapped.expireSnapshots();

core/src/main/java/org/apache/iceberg/SerializableTable.java

@@ -332,6 +332,11 @@ public DeleteFiles newDelete() {
     throw new UnsupportedOperationException(errorMsg("newDelete"));
   }
 
+  @Override
+  public UpdateStatistics updateStatistics() {
+    throw new UnsupportedOperationException(errorMsg("updateStatistics"));
+  }
+
   @Override
   public ExpireSnapshots expireSnapshots() {
     throw new UnsupportedOperationException(errorMsg("expireSnapshots"));