diff --git a/src/sql/engine/aggregate/ob_aggregate_processor.cpp b/src/sql/engine/aggregate/ob_aggregate_processor.cpp
index f22b83e86569f28cd7d85b093ee6f30d2906a46f..408891f9fea55f00b08488a4e09aa759066e8179 100644
--- a/src/sql/engine/aggregate/ob_aggregate_processor.cpp
+++ b/src/sql/engine/aggregate/ob_aggregate_processor.cpp
@@ -3453,6 +3453,7 @@ int ObAggregateProcessor::get_json_objectagg_result(const ObAggrInfo &aggr_info,
           ObCollationType cs_type0 = tmp_obj[0].get_collation_type();
           ObObjType val_type1 = tmp_obj[1].get_type();
           ObScale scale1 = tmp_obj[1].get_scale();
+          scale1 = (val_type1 == ObBitType) ? aggr_info.param_exprs_.at(1)->datum_meta_.length_semantics_ : scale1;
           ObCollationType cs_type1 = tmp_obj[1].get_collation_type();
           ObString key_string = tmp_obj[0].get_string();
           if (OB_SUCC(ret) && ObCharset::charset_type_by_coll(cs_type0) != CHARSET_UTF8MB4) {
diff --git a/src/sql/engine/expr/ob_expr_json_func_helper.h b/src/sql/engine/expr/ob_expr_json_func_helper.h
index 23b2bee330bd6e76fc0d2eb7005c6dc08ba47a2a..d25744675d8570def056b9f6713cec7a7b22dc7d 100644
--- a/src/sql/engine/expr/ob_expr_json_func_helper.h
+++ b/src/sql/engine/expr/ob_expr_json_func_helper.h
@@ -213,7 +213,20 @@ public:
         }
         break;
       }
-
+      case ObYearType: {
+        uint8_t in_val = datum.get_year();
+        int64_t full_year = 0;
+        if (OB_FAIL(ObTimeConverter::year_to_int(in_val, full_year))) {
+        } else {
+          buf = allocator->alloc(sizeof(ObJsonInt));
+          if (OB_ISNULL(buf)) {
+            ret = OB_ALLOCATE_MEMORY_FAILED;
+          } else {
+            json_node = (ObJsonInt*)new(buf)ObJsonInt(full_year);
+          }
+        }
+        break;
+      }
       case ObFloatType:
       case ObDoubleType:
       case ObUFloatType:
@@ -251,6 +264,27 @@ public:
         }
         break;
       }
+      case ObBitType: {
+        const int32_t BUF_LEN = (OB_MAX_BIT_LENGTH + 7) / 8;
+        int64_t pos = 0;
+        char *bbuf = static_cast<char*>(allocator->alloc(BUF_LEN));
+        if (OB_ISNULL(bbuf)) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+        } else {
+          uint64_t in_val = datum.get_uint64();
+          if (OB_FAIL(bit_to_char_array(in_val, scale, bbuf, BUF_LEN, pos))) {
+          } else {
+            common::ObString j_value(pos, bbuf);
+            buf = allocator->alloc(sizeof(ObJsonOpaque));
+            if (OB_ISNULL(buf)) {
+              ret = OB_ALLOCATE_MEMORY_FAILED;
+            } else {
+              json_node = (ObJsonOpaque *)new(buf)ObJsonOpaque(j_value, type);
+            }
+          }
+        }
+        break;
+      }
       default: {
         ret = OB_INVALID_ARGUMENT;
       }