diff --git a/statement.c b/statement.c
index a6404b6bf18285e22f4d21ad5dcb0b73c5487c6e..c59b74c1510b7882f2e745674111198ebdde4012 100644
--- a/statement.c
+++ b/statement.c
@@ -54,6 +54,9 @@ static const struct
 	,{
 		STMT_TYPE_UPDATE, "UPDATE"
 	}
+ 	,{
+		STMT_TYPE_MERGE, "MERGE"
+	}
 	,{
 		STMT_TYPE_DELETE, "DELETE"
 	}
@@ -3250,6 +3253,7 @@ MYLOG(0, "leaving cvtlen=" FORMAT_SIZE_T " ix(bl,of)=%d(%d,%d)\n", cvtlen, pg_bm
  *     - binded parameter sets count should be greater than 1.
  *     - binded parameter sets should not be all ignored.
  *     - INSERT/UPDATE/DELETE commands enabled.
+ *     - MERGE commands enabled. By haixiong.luo@enmotech.com 20220823
  */
 BOOL SC_CanUseBatchProto(const StatementClass *self)
 {
@@ -3289,6 +3293,7 @@ BOOL SC_CanUseBatchProto(const StatementClass *self)
 
 	if (st == STMT_TYPE_INSERT ||
 		st == STMT_TYPE_UPDATE ||
+        st == STMT_TYPE_MERGE  ||
 		st == STMT_TYPE_DELETE)
 		return TRUE;
 
diff --git a/statement.h b/statement.h
index 9d7f0edefb1bd7c8340007fee0ed7a0ee51f47d9..e78ea404a26efc5a3356c9e845bcaca0c39f63dd 100644
--- a/statement.h
+++ b/statement.h
@@ -113,6 +113,7 @@ enum
 	,STMT_TYPE_CLOSE
 	,STMT_TYPE_INSERT
 	,STMT_TYPE_UPDATE
+    ,STMT_TYPE_MERGE
 	,STMT_TYPE_DELETE
 	,STMT_TYPE_CREATE
 	,STMT_TYPE_ALTER