diff --git a/src/main/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQuery.java b/src/main/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQuery.java
index 56bdd2d6..5bac4a26 100644
--- a/src/main/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQuery.java
+++ b/src/main/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQuery.java
@@ -491,13 +491,12 @@ public void setScanRangeColumns(List<String> scanRangeColumns) {
         this.scanRangeColumns = scanRangeColumns;
     }
 
-    // This interface is just for OBKV-Hbase
-    public void setObKVParams(ObKVParams obKVParams) {
-        if (!(obKVParams.getObParamsBase() instanceof ObHBaseParams)) {
-            throw new FeatureNotSupportedException("only ObHBaseParams support currently");
+    public void setHBaseParams(ObHBaseParams obHBaseParams) {
+        if (obKVParams == null) {
+            this.obKVParams = new ObKVParams();
         }
+        this.obKVParams.setObParamsBase(obHBaseParams);
         this.isHbaseQuery = true;
-        this.obKVParams = obKVParams;
     }
 
     public ObKVParams getObKVParams() {
diff --git a/src/main/java/com/alipay/oceanbase/rpc/table/ObHBaseParams.java b/src/main/java/com/alipay/oceanbase/rpc/table/ObHBaseParams.java
index 3bb8b1d6..75fb84f3 100644
--- a/src/main/java/com/alipay/oceanbase/rpc/table/ObHBaseParams.java
+++ b/src/main/java/com/alipay/oceanbase/rpc/table/ObHBaseParams.java
@@ -33,6 +33,9 @@ public class ObHBaseParams extends ObKVParamsBase {
     private static final int FLAG_IS_CACHE_BLOCK        = 1 << 1;
     private static final int FLAG_CHECK_EXISTENCE_ONLY  = 1 << 2;
 
+    private static final int FLAG_BYTE_LENGTH           = 1;
+    private static final int BOOLEAN_BYTE_LENGTH        = 1;    // all boolean to one byte
+
     public ObHBaseParams() {
         pType = paramType.HBase;
     }
@@ -61,11 +64,6 @@ public void setCheckExistenceOnly(boolean checkExistenceOnly) {
         this.checkExistenceOnly = checkExistenceOnly;
     }
 
-    private int getContentSize() {
-        return 4 + Serialization.getNeedBytes(caching) + Serialization.getNeedBytes(callTimeout)
-               + 1;
-    }
-
     public int getCaching() {
         return caching;
     }
@@ -134,8 +132,9 @@ public Object decode(ByteBuf buf) {
     }
 
     public long getPayloadContentSize() {
-        return 1 + Serialization.getNeedBytes(caching) + Serialization.getNeedBytes(callTimeout)
-               + 1; // all boolean to one byte
+        return FLAG_BYTE_LENGTH
+                + Serialization.getNeedBytes(caching) + Serialization.getNeedBytes(callTimeout)
+                + BOOLEAN_BYTE_LENGTH;
     }
 
     public String toString() {
diff --git a/src/main/java/com/alipay/oceanbase/rpc/table/ObKVParamsBase.java b/src/main/java/com/alipay/oceanbase/rpc/table/ObKVParamsBase.java
index 796e4cf9..9bd1e1b1 100644
--- a/src/main/java/com/alipay/oceanbase/rpc/table/ObKVParamsBase.java
+++ b/src/main/java/com/alipay/oceanbase/rpc/table/ObKVParamsBase.java
@@ -33,7 +33,6 @@ public byte getValue() {
         }
     }
 
-    public int       byteSize;
     public paramType pType;
 
     public paramType getType() {
diff --git a/src/test/java/com/alipay/oceanbase/rpc/hbase/ObHTableOperationRequest.java b/src/test/java/com/alipay/oceanbase/rpc/hbase/ObHTableOperationRequest.java
index eb55a8c8..d3297340 100644
--- a/src/test/java/com/alipay/oceanbase/rpc/hbase/ObHTableOperationRequest.java
+++ b/src/test/java/com/alipay/oceanbase/rpc/hbase/ObHTableOperationRequest.java
@@ -116,9 +116,7 @@ public void setOperationType(ObTableOperationType operationType) {
 
     public void setObKVParams(ObTableQuery query) {
         ObHBaseParams params = new ObHBaseParams();
-        ObKVParams obKVParams = new ObKVParams();
-        obKVParams.setObParamsBase(params);
-        query.setObKVParams(obKVParams);
+        query.setHBaseParams(params);
     }
 
     public ObTableAbstractOperationRequest obTableOperationRequest() {
diff --git a/src/test/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQueryPayloadTest.java b/src/test/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQueryPayloadTest.java
index 0f7d9e39..c88da692 100644
--- a/src/test/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQueryPayloadTest.java
+++ b/src/test/java/com/alipay/oceanbase/rpc/protocol/payload/impl/execute/query/ObTableQueryPayloadTest.java
@@ -82,9 +82,7 @@ public void test_ObTableQueryWithHbaseQuery() {
         ObTableQuery obTableQuery = getObTableQuery();
         obTableQuery.sethTableFilter(getObHTableFilter());
         ObHBaseParams hBaseParams = new ObHBaseParams();
-        ObKVParams kv_prams = new ObKVParams();
-        kv_prams.setObParamsBase(hBaseParams);
-        obTableQuery.setObKVParams(kv_prams);
+        obTableQuery.setHBaseParams(hBaseParams);
 
         byte[] bytes = obTableQuery.encode();
         ByteBuf buf = PooledByteBufAllocator.DEFAULT.buffer();