diff --git a/source/libs/executor/src/sysscanoperator.c b/source/libs/executor/src/sysscanoperator.c
index a210c147a2..fec7c3bc6c 100644
--- a/source/libs/executor/src/sysscanoperator.c
+++ b/source/libs/executor/src/sysscanoperator.c
@@ -131,9 +131,6 @@ const SSTabFltFuncDef filterDict[] = {
 static int32_t buildDbTableInfoBlock(bool sysInfo, const SSDataBlock* p, const SSysTableMeta* pSysDbTableMeta,
                                      size_t size, const char* dbName, int64_t* pRows);
 
-static char* SYSTABLE_IDX_COLUMN[] = {"table_name", "db_name",     "create_time",      "columns",
-                                      "ttl",        "stable_name", "vgroup_id', 'uid", "type"};
-
 static char* SYSTABLE_SPECIAL_COL[] = {"db_name", "vgroup_id"};
 
 static int32_t        buildSysDbTableInfo(const SSysTableScanInfo* pInfo, int32_t capacity);
@@ -2822,12 +2819,6 @@ _end:
   return code;
 }
 
-static SSDataBlock* doBlockInfoScan(SOperatorInfo* pOperator) {
-  SSDataBlock* pRes = NULL;
-  int32_t      code = doBlockInfoScanNext(pOperator, &pRes);
-  return pRes;
-}
-
 static void destroyBlockDistScanOperatorInfo(void* param) {
   SBlockDistInfo* pDistInfo = (SBlockDistInfo*)param;
   blockDataDestroy(pDistInfo->pResBlock);