diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index 099ee77bc5d94d6542068f96af380462d358aa8f..36dd60c4feeb3691e27164e309e43586374da13a 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -289,7 +289,7 @@ static char* normalStmtBuildSql(STscStmt* stmt) {
     case TSDB_DATA_TYPE_USMALLINT:
     case TSDB_DATA_TYPE_UINT:
     case TSDB_DATA_TYPE_UBIGINT:
-      taosStringBuilderAppendInteger(&sb, var->u64);  // maybe overflow if u64 is too big
+      taosStringBuilderAppendUnsignedInteger(&sb, var->u64);
       break;
 
     case TSDB_DATA_TYPE_FLOAT:
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 2be11a406a3b193147bbe33a8f49f62d3eda108d..ff4d0e43e6a12c7f92e301d19f8688e48ff88283 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -60,6 +60,21 @@ int32_t converToStr(char *str, int type, void *buf, int32_t bufSize, int32_t *le
     case TSDB_DATA_TYPE_TIMESTAMP:
       n = sprintf(str, "%" PRId64, *(int64_t*)buf);
       break;
+    case TSDB_DATA_TYPE_UTINYINT:
+      n = sprintf(str, "%d", *(uint8_t*)buf);
+      break;
+
+    case TSDB_DATA_TYPE_USMALLINT:
+      n = sprintf(str, "%d", *(uint16_t*)buf);
+      break;
+
+    case TSDB_DATA_TYPE_UINT:
+      n = sprintf(str, "%d", *(uint32_t*)buf);
+      break;
+
+    case TSDB_DATA_TYPE_UBIGINT:
+      n = sprintf(str, "%" PRId64, *(uint64_t*)buf);
+      break;
 
     case TSDB_DATA_TYPE_FLOAT:
       n = sprintf(str, "%f", GET_FLOAT_VAL(buf));
diff --git a/src/util/inc/tstrbuild.h b/src/util/inc/tstrbuild.h
index 68d1914be3c216a05a03fe6b80490ca1ee7bea4f..1bfa077e80164ef671bd939420e4da5385758ed3 100644
--- a/src/util/inc/tstrbuild.h
+++ b/src/util/inc/tstrbuild.h
@@ -43,6 +43,7 @@ void taosStringBuilderAppendStringLen(SStringBuilder* sb, const char* str, size_
 void taosStringBuilderAppendString(SStringBuilder* sb, const char* str);
 void taosStringBuilderAppendNull(SStringBuilder* sb);
 void taosStringBuilderAppendInteger(SStringBuilder* sb, int64_t v);
+void taosStringBuilderAppendUnsignedInteger(SStringBuilder* sb, uint64_t v)
 void taosStringBuilderAppendDouble(SStringBuilder* sb, double v);
 
 #ifdef __cplusplus
diff --git a/src/util/src/tstrbuild.c b/src/util/src/tstrbuild.c
index eec21d18354a4141be92530cda1a953e5efd89a8..e3d31595355351c7c4861166201ca65659f09a3a 100644
--- a/src/util/src/tstrbuild.c
+++ b/src/util/src/tstrbuild.c
@@ -73,6 +73,12 @@ void taosStringBuilderAppendInteger(SStringBuilder* sb, int64_t v) {
   taosStringBuilderAppendStringLen(sb, buf, MIN(len, sizeof(buf)));
 }
 
+void taosStringBuilderAppendUnsignedInteger(SStringBuilder* sb, uint64_t v) {
+  char   buf[64];
+  size_t len = snprintf(buf, sizeof(buf), "%" PRId64, v);
+  taosStringBuilderAppendStringLen(sb, buf, MIN(len, sizeof(buf)));
+}
+
 void taosStringBuilderAppendDouble(SStringBuilder* sb, double v) {
   char   buf[512];
   size_t len = snprintf(buf, sizeof(buf), "%.9lf", v);