diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 3ede49c71e888ad034d1ab09c4db30ef289adf5a..16523571c6e5658e8391415a133faef0bc81d104 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -3096,7 +3096,7 @@ static int32_t doExtractColumnFilterInfo(SSqlCmd* pCmd, SQueryInfo* pQueryInfo,
   } else if ((colType == TSDB_DATA_TYPE_TIMESTAMP) && (TSDB_DATA_TYPE_BIGINT == pRight->value.nType)) {
     STableComInfo tinfo = tscGetTableInfo(pTableMeta);
 
-    if ((tinfo.precision == TSDB_TIME_PRECISION_MILLI) && (pRight->flags & (1 << EXPR_FLAG_NOW))) {
+    if ((tinfo.precision == TSDB_TIME_PRECISION_MILLI) && (pRight->flags & (1 << EXPR_FLAG_US_TIMESTAMP))) {
       pRight->value.i64 /= 1000;
     }
   }
diff --git a/src/query/inc/qSqlparser.h b/src/query/inc/qSqlparser.h
index 8c96ac2b94515ba5312d57061e7e715e4598c1b7..1d62b10c37155c5015d8851846358cd4f950e580 100644
--- a/src/query/inc/qSqlparser.h
+++ b/src/query/inc/qSqlparser.h
@@ -45,7 +45,7 @@ enum SQL_NODE_FROM_TYPE {
 };
 
 enum SQL_EXPR_FLAG {
-  EXPR_FLAG_NOW = 1
+  EXPR_FLAG_US_TIMESTAMP = 1
 };
 
 extern char tTokenTypeSwitcher[13];
diff --git a/src/query/src/qSqlParser.c b/src/query/src/qSqlParser.c
index 1dde47e876f407883f37087f27189d13dcb3ef07..45b0fb0ec2b3a0148d1ce24f57c86cb0f66285ca 100644
--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -144,13 +144,14 @@ tSqlExpr *tSqlExprCreateIdValue(SStrToken *pToken, int32_t optrType) {
     pSqlExpr->value.nType = TSDB_DATA_TYPE_BIGINT;
     pSqlExpr->tokenId = TK_TIMESTAMP;  // TK_TIMESTAMP used to denote the time value is in microsecond
     pSqlExpr->type    = SQL_NODE_VALUE;
-    pSqlExpr->flags  |= 1 << EXPR_FLAG_NOW;
+    pSqlExpr->flags  |= 1 << EXPR_FLAG_US_TIMESTAMP;
   } else if (optrType == TK_VARIABLE) {
     int32_t ret = parseAbsoluteDuration(pToken->z, pToken->n, &pSqlExpr->value.i64);
     if (ret != TSDB_CODE_SUCCESS) {
       terrno = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
     }
 
+    pSqlExpr->flags  |= 1 << EXPR_FLAG_US_TIMESTAMP;
     pSqlExpr->value.nType = TSDB_DATA_TYPE_BIGINT;
     pSqlExpr->tokenId = TK_TIMESTAMP;
     pSqlExpr->type    = SQL_NODE_VALUE;