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The following commit(s) were added to refs/heads/branch-4.1 by this push:
     new afe6e647e4b branch-4.1: [fix](fe) Allow retention count ALTER in cloud 
mode #66197 (#66278)
afe6e647e4b is described below

commit afe6e647e4b5a178ad000ef1165653116bf520ef
Author: github-actions[bot] 
<41898282+github-actions[bot]@users.noreply.github.com>
AuthorDate: Mon Aug 3 10:27:18 2026 +0800

    branch-4.1: [fix](fe) Allow retention count ALTER in cloud mode #66197 
(#66278)
    
    Cherry-picked from #66197
    
    Co-authored-by: zclllyybb <[email protected]>
---
 .../apache/doris/alter/SchemaChangeHandler.java    | 26 ++++++---
 .../cloud/alter/CloudSchemaChangeHandler.java      | 11 ++--
 ...st_cloud_alter_partition_retention_count.groovy | 61 ++++++++++++++++++++++
 .../auto_partition/test_auto_new_recycle.groovy    | 22 ++++++++
 4 files changed, 105 insertions(+), 15 deletions(-)

diff --git 
a/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java 
b/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
index fe060926186..a354af64741 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
@@ -2406,13 +2406,6 @@ public class SchemaChangeHandler extends AlterHandler {
             olapTable.readUnlock();
         }
 
-        if 
(properties.containsKey(PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT)
-                && !(olapTable.getPartitionInfo().enableAutomaticPartition()
-                        && olapTable.getPartitionInfo().getType() == 
PartitionType.RANGE)) {
-            throw new UserException("Only AUTO RANGE PARTITION table could set 
"
-                    + PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT);
-        }
-
         String inMemory = properties.get(PropertyAnalyzer.PROPERTIES_INMEMORY);
         int isInMemory = -1; // < 0 means don't update inMemory properties
         if (inMemory != null) {
@@ -2523,6 +2516,7 @@ public class SchemaChangeHandler extends AlterHandler {
 
         olapTable.writeLockOrDdlException();
         try {
+            checkPartitionRetentionCount(olapTable, properties);
             Env.getCurrentEnv().modifyTableProperties(db, olapTable, 
properties);
         } finally {
             olapTable.writeUnlock();
@@ -2532,6 +2526,24 @@ public class SchemaChangeHandler extends AlterHandler {
         DynamicPartitionUtil.registerOrRemoveDynamicPartitionTable(db.getId(), 
olapTable, false);
     }
 
+    protected void checkPartitionRetentionCount(OlapTable olapTable, 
Map<String, String> properties)
+            throws UserException {
+        if 
(!properties.containsKey(PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT))
 {
+            return;
+        }
+        if (!(olapTable.getPartitionInfo().enableAutomaticPartition()
+                && olapTable.getPartitionInfo().getType() == 
PartitionType.RANGE)) {
+            throw new UserException("Only AUTO RANGE PARTITION table could set 
"
+                    + PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT);
+        }
+        // Dynamic partition creation and retention-count cleanup are mutually 
exclusive scheduler modes.
+        if (olapTable.dynamicPartitionExists()
+                && 
olapTable.getTableProperty().getDynamicPartitionProperty().getEnable()) {
+            throw new UserException("Can not use partition.retention_count and 
"
+                    + "dynamic_partition properties at the same time");
+        }
+    }
+
     /**
      * Update some specified partitions' properties of table
      */
diff --git 
a/fe/fe-core/src/main/java/org/apache/doris/cloud/alter/CloudSchemaChangeHandler.java
 
b/fe/fe-core/src/main/java/org/apache/doris/cloud/alter/CloudSchemaChangeHandler.java
index 1bbe616de8d..87a5f3f5f4a 100644
--- 
a/fe/fe-core/src/main/java/org/apache/doris/cloud/alter/CloudSchemaChangeHandler.java
+++ 
b/fe/fe-core/src/main/java/org/apache/doris/cloud/alter/CloudSchemaChangeHandler.java
@@ -25,7 +25,6 @@ import org.apache.doris.catalog.MaterializedIndex;
 import org.apache.doris.catalog.MaterializedIndex.IndexExtState;
 import org.apache.doris.catalog.OlapTable;
 import org.apache.doris.catalog.Partition;
-import org.apache.doris.catalog.PartitionType;
 import org.apache.doris.catalog.Table;
 import org.apache.doris.catalog.Tablet;
 import org.apache.doris.cloud.proto.Cloud;
@@ -138,13 +137,6 @@ public class CloudSchemaChangeHandler extends 
SchemaChangeHandler {
         OlapTable olapTable = (OlapTable) 
db.getTableOrMetaException(tableName, Table.TableType.OLAP);
         UpdatePartitionMetaParam param = new UpdatePartitionMetaParam();
 
-        if 
(properties.containsKey(PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT)
-                && !(olapTable.getPartitionInfo().enableAutomaticPartition()
-                        && olapTable.getPartitionInfo().getType() == 
PartitionType.RANGE)) {
-            throw new UserException("Only AUTO RANGE PARTITION table could set 
"
-                    + PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT);
-        }
-
         if 
(properties.containsKey(PropertyAnalyzer.PROPERTIES_FILE_CACHE_TTL_SECONDS)) {
             long ttlSeconds = PropertyAnalyzer.analyzeTTL(properties);
             olapTable.readLock();
@@ -366,6 +358,8 @@ public class CloudSchemaChangeHandler extends 
SchemaChangeHandler {
             param.type = 
UpdatePartitionMetaParam.TabletMetaType.ENABLE_MOW_LIGHT_DELETE;
         } else if 
(properties.containsKey(PropertyAnalyzer.PROPERTIES_AUTO_ANALYZE_POLICY)) {
             // Do nothing.
+        } else if 
(properties.containsKey(PropertyAnalyzer.PROPERTIES_PARTITION_RETENTION_COUNT)) 
{
+            // Retention count only changes FE table properties and scheduler 
registration below.
         } else if (properties.containsKey(
                 
PropertyAnalyzer.PROPERTIES_VERTICAL_COMPACTION_NUM_COLUMNS_PER_GROUP)) {
             int verticalCompactionNumColumnsPerGroup = 
Integer.parseInt(properties.get(
@@ -389,6 +383,7 @@ public class CloudSchemaChangeHandler extends 
SchemaChangeHandler {
 
         olapTable.writeLockOrDdlException();
         try {
+            checkPartitionRetentionCount(olapTable, properties);
             Env.getCurrentEnv().modifyTableProperties(db, olapTable, 
properties);
         } finally {
             olapTable.writeUnlock();
diff --git 
a/regression-test/suites/cloud_p0/partition/test_cloud_alter_partition_retention_count.groovy
 
b/regression-test/suites/cloud_p0/partition/test_cloud_alter_partition_retention_count.groovy
new file mode 100644
index 00000000000..c6dd6ded56d
--- /dev/null
+++ 
b/regression-test/suites/cloud_p0/partition/test_cloud_alter_partition_retention_count.groovy
@@ -0,0 +1,61 @@
+// 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.
+
+suite("test_cloud_alter_partition_retention_count", "p0") {
+    sql "DROP TABLE IF EXISTS test_cloud_alter_partition_retention_count"
+    sql """
+        CREATE TABLE test_cloud_alter_partition_retention_count (
+            k1 DATETIME NOT NULL
+        )
+        AUTO PARTITION BY RANGE (date_trunc(k1, 'day')) ()
+        DISTRIBUTED BY HASH(k1) BUCKETS 1
+        PROPERTIES (
+            "replication_num" = "1"
+        )
+    """
+
+    sql """
+        ALTER TABLE test_cloud_alter_partition_retention_count
+        SET ("partition.retention_count" = "3")
+    """
+
+    sql "DROP TABLE IF EXISTS 
test_cloud_alter_partition_retention_count_with_dynamic"
+    sql """
+        CREATE TABLE test_cloud_alter_partition_retention_count_with_dynamic (
+            k1 DATETIME NOT NULL
+        )
+        AUTO PARTITION BY RANGE (date_trunc(k1, 'day')) ()
+        DISTRIBUTED BY HASH(k1) BUCKETS 1
+        PROPERTIES (
+            "dynamic_partition.enable" = "true",
+            "dynamic_partition.time_unit" = "DAY",
+            "dynamic_partition.start" = "-3",
+            "dynamic_partition.end" = "3",
+            "dynamic_partition.prefix" = "p",
+            "dynamic_partition.buckets" = "1",
+            "replication_num" = "1"
+        )
+    """
+
+    test {
+        sql """
+            ALTER TABLE test_cloud_alter_partition_retention_count_with_dynamic
+            SET ("partition.retention_count" = "3")
+        """
+        exception "Can not use partition.retention_count and dynamic_partition 
properties at the same time"
+    }
+}
diff --git 
a/regression-test/suites/partition_p0/auto_partition/test_auto_new_recycle.groovy
 
b/regression-test/suites/partition_p0/auto_partition/test_auto_new_recycle.groovy
index 4f67b631d45..c48a1674013 100644
--- 
a/regression-test/suites/partition_p0/auto_partition/test_auto_new_recycle.groovy
+++ 
b/regression-test/suites/partition_p0/auto_partition/test_auto_new_recycle.groovy
@@ -69,6 +69,28 @@ suite("test_auto_new_recycle", "nonConcurrent") {
     def res = sql "show create table auto_recycle"
     assertTrue(res[0][1].contains('"partition.retention_count" = "3"'))
 
+    sql "drop table if exists auto_recycle_with_dynamic"
+    sql """
+        create table auto_recycle_with_dynamic(
+            k0 datetime(6) not null
+        )
+        auto partition by range (date_trunc(k0, 'day')) ()
+        DISTRIBUTED BY HASH(`k0`) BUCKETS 1
+        properties(
+            "dynamic_partition.enable" = "true",
+            "dynamic_partition.time_unit" = "DAY",
+            "dynamic_partition.start" = "-3",
+            "dynamic_partition.end" = "3",
+            "dynamic_partition.prefix" = "p",
+            "dynamic_partition.buckets" = "1",
+            "replication_num" = "1"
+        );
+    """
+    test {
+        sql "alter table auto_recycle_with_dynamic set 
('partition.retention_count' = '3')"
+        exception "Can not use partition.retention_count and dynamic_partition 
properties at the same time"
+    }
+
     sql "drop table auto_recycle force"
     sql """
         create table auto_recycle(


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