diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
index b1198e1cb2..8a2606c4c2 100644
--- a/source/os/src/osFile.c
+++ b/source/os/src/osFile.c
@@ -1403,7 +1403,7 @@ int64_t taosGetLineFile(TdFilePtr pFile, char **__restrict ptrBuf) {
   }
 
   (*ptrBuf)[totalBytesRead] = '\0';
-  ret = (totalBytesRead > 0 ? totalBytesRead : -1); // -1 means EOF
+  ret = totalBytesRead;
 #else
   size_t len = 0;
   ret = getline(ptrBuf, &len, pFile->fp);
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 3eeb583c11..9047b0f3af 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -443,7 +443,6 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/InsertFuturets.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/insert_wide_column.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/insert_column_value.py
-,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/insert_from_csv.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/rowlength64k_benchmark.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/rowlength64k.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/rowlength64k.py -R
diff --git a/tests/system-test/1-insert/insert_from_csv.py b/tests/system-test/1-insert/insert_from_csv.py
deleted file mode 100644
index 38f6a8b09d..0000000000
--- a/tests/system-test/1-insert/insert_from_csv.py
+++ /dev/null
@@ -1,47 +0,0 @@
-import taos
-import sys
-import datetime
-import inspect
-import random
-from util.dnodes import TDDnode
-from util.dnodes import tdDnodes
-
-from util.log import *
-from util.sql import *
-from util.cases import *
-
-class TDTestCase:
-    def init(self, conn, logSql, replicaVar=1):
-        self.replicaVar = int(replicaVar)
-        tdLog.debug(f"start to excute {__file__}")
-        tdSql.init(conn.cursor(), True)
-
-        self.testcasePath = os.path.split(__file__)[0]
-        self.testcasePath = self.testcasePath.replace('\\', '//')
-        self.database = "test_insert_csv_db"
-        self.table = "test_insert_csv_tbl"
-
-    def insert_from_csv(self):
-        tdSql.execute(f"drop database if exists {self.database}")
-        tdSql.execute(f"create database {self.database}")
-        tdSql.execute(f"use {self.database}")
-        tdSql.execute(f"create table {self.table} (ts timestamp, c1 nchar(16), c2 double, c3 int)")
-        tdSql.execute(f"insert into {self.table} file '{self.testcasePath}//test_insert_from_csv.csv'")
-        tdSql.query(f"select count(*) from {self.table}")
-        tdSql.checkData(0, 0, 5)
-
-    def run(self):
-        tdSql.prepare()
-        
-        startTime_all = time.time() 
-        self.insert_from_csv()
-        endTime_all = time.time()
-        print("total time %ds" % (endTime_all - startTime_all))        
-
-    def stop(self):
-        tdSql.close()
-        tdLog.success("%s successfully executed" % __file__)
-        
-
-tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
diff --git a/tests/system-test/1-insert/test_insert_from_csv.csv b/tests/system-test/1-insert/test_insert_from_csv.csv
deleted file mode 100644
index 966af8c27a..0000000000
--- a/tests/system-test/1-insert/test_insert_from_csv.csv
+++ /dev/null
@@ -1,5 +0,0 @@
-'2024-12-13 09:30:00.050','ABCDEF68',24.774736842805263,200
-'2024-12-13 09:30:00.060','ABCDEF68',24.774736842805263,201
-'2024-12-13 09:30:00.080','ABCDEF68',24.774736842805263,202
-'2024-12-13 09:30:00.100','ABCDEF68',24.774736842805263,203
-'2024-12-13 09:30:00.110','ABCDEF68',24.774736842805263,204
diff --git a/tests/system-test/simpletest.bat b/tests/system-test/simpletest.bat
index 5948c7fc80..a1f7273ad4 100644
--- a/tests/system-test/simpletest.bat
+++ b/tests/system-test/simpletest.bat
@@ -13,7 +13,6 @@ python3 .\test.py -f 0-others\cachemodel.py
 @REM python3 .\test.py -f 0-others\fsync.py
 
 python3 .\test.py -f 1-insert\influxdb_line_taosc_insert.py
-python3 .\test.py -f 1-insert\insert_from_csv.py
 @REM python3 .\test.py -f 1-insert\opentsdb_telnet_line_taosc_insert.py
 @REM python3 .\test.py -f 1-insert\opentsdb_json_taosc_insert.py
 @REM #python3 .\test.py -f 1-insert\test_stmt_muti_insert_query.py