diff --git a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
index edb01513626042..36e362e625980b 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
@@ -1386,15 +1386,13 @@ public class Config extends ConfigBase {
     /**
      * Set the maximum number of rows that can be cached
      */
-    @ConfField(mutable = true, masterOnly = false, description = {"SQL/Partition Cache可以缓存的最大行数。",
-        "Maximum number of rows that can be cached in SQL/Partition Cache, is 3000 by default."})
+    @ConfField(mutable = true, masterOnly = false)
     public static int cache_result_max_row_count = 3000;
 
     /**
      * Set the maximum data size that can be cached
      */
-    @ConfField(mutable = true, masterOnly = false, description = {"SQL/Partition Cache可以缓存的最大数据大小。",
-        "Maximum data size of rows that can be cached in SQL/Partition Cache, is 3000 by default."})
+    @ConfField(mutable = true, masterOnly = false)
     public static int cache_result_max_data_size = 31457280; // 30M
 
     /**
diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/AddColumnClause.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/AddColumnClause.java
index 2d472cd54953e4..a0468973106d60 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/AddColumnClause.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/AddColumnClause.java
@@ -73,12 +73,15 @@ public void analyze(Analyzer analyzer) throws AnalysisException, DdlException {
         if (columnDef == null) {
             throw new AnalysisException("No column definition in add column clause.");
         }
+        boolean isAggKey = false;
         if (tableName != null) {
             Table table = Env.getCurrentInternalCatalog().getDbOrDdlException(tableName.getDb())
                     .getTableOrDdlException(tableName.getTbl());
-            if (table instanceof OlapTable && ((OlapTable) table).getKeysType() == KeysType.AGG_KEYS
-                    && columnDef.getAggregateType() == null) {
-                columnDef.setIsKey(true);
+            if (table instanceof OlapTable && ((OlapTable) table).getKeysType() == KeysType.AGG_KEYS) {
+                isAggKey = true;
+                if (columnDef.getAggregateType() == null) {
+                    columnDef.setIsKey(true);
+                }
             }
         }
         columnDef.analyze(true);
@@ -94,6 +97,10 @@ public void analyze(Analyzer analyzer) throws AnalysisException, DdlException {
             throw new AnalysisException("Cannot add value column[" + columnDef.getName() + "] at first");
         }
 
+        if (isAggKey && columnDef.getType().isArrayType()) {
+            throw new AnalysisException("Array column can't be used in aggregate table");
+        }
+
         if (Strings.isNullOrEmpty(rollupName)) {
             rollupName = null;
         }