diff --git a/source/libs/decimal/src/decimal.c b/source/libs/decimal/src/decimal.c
index 381686814f..bf17f7d222 100644
--- a/source/libs/decimal/src/decimal.c
+++ b/source/libs/decimal/src/decimal.c
@@ -473,7 +473,7 @@ int32_t decimal64ToStr(const DecimalType* pInt, uint8_t scale, char* pBuf, int32
   int32_t code = decimalGetWhole(pInt, DECIMAL_64, scale, &whole);
   pos += snprintf(pBuf + pos, bufLen - pos, "%" PRId64, DECIMAL64_GET_VALUE(&whole));
   if (scale > 0) {
-    decimalGetFrac(pInt, DECIMAL_64, scale, &frac);
+    (void)decimalGetFrac(pInt, DECIMAL_64, scale, &frac);
     if (DECIMAL64_GET_VALUE(&frac) != 0 || DECIMAL64_GET_VALUE(&whole) != 0) {
       TAOS_STRCAT(pBuf + pos, ".");
       pos += 1;
@@ -641,11 +641,8 @@ static bool decimal128Lt(const DecimalType* pLeft, const DecimalType* pRight, ui
   // TODO wjm pRightDec use const
   Decimal128 *pLeftDec = (Decimal128*)pLeft, *pRightDec = (Decimal128*)pRight;
   Decimal128  right = {0};
-  char left_buf[64] = {0}, right_buf[64] = {0}; // TODO wjm remove it
   DECIMAL128_CHECK_RIGHT_WORD_NUM(rightWordNum, pRightDec, right, pRight);
 
-  decimal128ToStr(pLeftDec, 0, left_buf, 64);
-  decimal128ToStr(pRightDec, 0, right_buf, 64);
   return DECIMAL128_HIGH_WORD(pLeftDec) < DECIMAL128_HIGH_WORD(pRightDec) ||
          (DECIMAL128_HIGH_WORD(pLeftDec) == DECIMAL128_HIGH_WORD(pRightDec) &&
           DECIMAL128_LOW_WORD(pLeftDec) < DECIMAL128_LOW_WORD(pRightDec));
@@ -1367,8 +1364,8 @@ static int64_t int64FromDecimal128(const DecimalType* pDec, uint8_t prec, uint8_
     return 0;
   }
   Decimal128 max = {0}, min = {0};
-  decimal128FromInt64(&max, TSDB_DECIMAL128_MAX_PRECISION, 0, INT64_MAX);
-  decimal128FromInt64(&min, TSDB_DECIMAL128_MAX_PRECISION, 0, INT64_MIN);
+  (void)decimal128FromInt64(&max, TSDB_DECIMAL128_MAX_PRECISION, 0, INT64_MAX);
+  (void)decimal128FromInt64(&min, TSDB_DECIMAL128_MAX_PRECISION, 0, INT64_MIN);
   if (decimal128Gt(&rounded, &max, WORD_NUM(Decimal128)) || decimal128Lt(&rounded, &min, WORD_NUM(Decimal128))) {
     overflow = true;
     return (int64_t)DECIMAL128_LOW_WORD(&rounded);
@@ -1384,7 +1381,7 @@ static uint64_t uint64FromDecimal128(const DecimalType* pDec, uint8_t prec, uint
   if (overflow) return 0;
 
   Decimal128 max = {0};
-  decimal128FromUint64(&max, TSDB_DECIMAL128_MAX_PRECISION, 0, UINT64_MAX);
+  (void)decimal128FromUint64(&max, TSDB_DECIMAL128_MAX_PRECISION, 0, UINT64_MAX);
   if (decimal128Gt(&rounded, &max, WORD_NUM(Decimal128)) ||
       decimal128Lt(&rounded, &decimal128Zero, WORD_NUM(Decimal128))) {
     overflow = true;
diff --git a/tests/ci/scan_file_path.py b/tests/ci/scan_file_path.py
index 9244d37456..b07559d95c 100644
--- a/tests/ci/scan_file_path.py
+++ b/tests/ci/scan_file_path.py
@@ -117,7 +117,7 @@ def scan_files_path(source_file_path):
     # scan_dir_list = ["source", "include", "docs/examples", "tests/script/api", "src/plugins"]
     scan_dir_list = ["source", "include", "docs/examples", "src/plugins"]
     scan_skip_file_list = ["/root/charles/TDinternal/community/tools/taosws-rs/target/release/build/openssl-sys-7811e597b848e397/out/openssl-build/install/include/openssl",
-                           "/test/", "contrib", "debug", "deps", "/root/charles/TDinternal/community/source/libs/parser/src/sql.c", "/root/charles/TDinternal/community/source/client/jni/windows/win32/bridge/AccessBridgeCalls.c"]
+                           "/test/", "contrib", "debug", "deps", "/root/charles/TDinternal/community/source/libs/parser/src/sql.c", "/root/charles/TDinternal/community/source/client/jni/windows/win32/bridge/AccessBridgeCalls.c", "/root/charles/TDinternal/community/source/libs/decimal/src/detail"]
     for root, dirs, files in os.walk(source_file_path):
         for file in files:
             if any(item in root for item in scan_dir_list):
@@ -129,7 +129,7 @@ def scan_files_path(source_file_path):
 def input_files(change_files):
     # scan_dir_list = ["source", "include", "docs/examples", "tests/script/api", "src/plugins"]
     scan_dir_list = ["source", "include", "docs/examples", "src/plugins"]
-    scan_skip_file_list = ["tools/taosws-rs/target/release/build/openssl-sys-7811e597b848e397/out/openssl-build/install/include/openssl", "/test/", "contrib", "debug", "deps", "source/libs/parser/src/sql.c", "source/libs/azure", "source/client/jni/windows/win32/bridge/AccessBridgeCalls.c"]
+    scan_skip_file_list = ["tools/taosws-rs/target/release/build/openssl-sys-7811e597b848e397/out/openssl-build/install/include/openssl", "/test/", "contrib", "debug", "deps", "source/libs/parser/src/sql.c", "source/libs/azure", "source/client/jni/windows/win32/bridge/AccessBridgeCalls.c", "/root/charles/TDinternal/community/source/libs/decimal/src/detail"]
     with open(change_files, 'r') as file:
         for line in file:
             file_name = line.strip()