diff --git a/source/common/src/ttime.c b/source/common/src/ttime.c
index 1842ffb0dd2f36a942576be6299b3ff6231ee5ec..510a2809e74b92acecc510b928d9fe288ba9f7db 100644
--- a/source/common/src/ttime.c
+++ b/source/common/src/ttime.c
@@ -586,7 +586,7 @@ int64_t taosTimeTruncate(int64_t t, const SInterval* pInterval, int32_t precisio
       start = taosTimeAdd(start, -pInterval->interval, pInterval->intervalUnit, precision);
     } else {
       // try to move current window to the left-hande-side, due to the offset effect.
-      int64_t end = start + pInterval->interval - 1;
+      int64_t end = taosTimeAdd(start, pInterval->interval, pInterval->intervalUnit, precision) - 1;
       ASSERT(end >= t);
       end = taosTimeAdd(end, -pInterval->sliding, pInterval->slidingUnit, precision);
       if (end >= t) {
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index 2d7e2eedc671c269a3177c6e9a1a116a551d06ba..c582873315d38efb14e904e436bd0ef3b055270f 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -665,6 +665,9 @@ SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pEx
                                        SArray* pGroupColList, SExecTaskInfo* pTaskInfo, const STableGroupInfo* pTableGroupInfo);
 SOperatorInfo* createFillOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExpr, int32_t numOfCols, SInterval* pInterval, SSDataBlock* pResBlock,
                                       int32_t fillType, char* fillVal, bool multigroupResult, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createDistinctOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream, SExprInfo* pExpr,
+                                          int32_t numOfOutput);
+SOperatorInfo* createTableBlockInfoScanOperator(void* pTsdbReadHandle, STaskRuntimeEnv* pRuntimeEnv);
 
 SOperatorInfo* createTableSeqScanOperatorInfo(void* pTsdbReadHandle, STaskRuntimeEnv* pRuntimeEnv);
 SOperatorInfo* createAllTimeIntervalOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream,
@@ -675,9 +678,7 @@ SOperatorInfo* createMultiTableTimeIntervalOperatorInfo(STaskRuntimeEnv* pRuntim
 SOperatorInfo* createAllMultiTableTimeIntervalOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream,
                                                            SExprInfo* pExpr, int32_t numOfOutput);
 SOperatorInfo* createTagScanOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SExprInfo* pExpr, int32_t numOfOutput);
-SOperatorInfo* createDistinctOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream, SExprInfo* pExpr,
-                                          int32_t numOfOutput);
-SOperatorInfo* createTableBlockInfoScanOperator(void* pTsdbReadHandle, STaskRuntimeEnv* pRuntimeEnv);
+
 SOperatorInfo* createMultiwaySortOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SExprInfo* pExpr, int32_t numOfOutput,
                                               int32_t numOfRows, void* merger);
 SOperatorInfo* createGlobalAggregateOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream,
diff --git a/tests/script/tsim/query/interval-offset.sim b/tests/script/tsim/query/interval-offset.sim
index d17ff5c053c487c961332bbd2133505449d1575e..f188dff1ba91cb0311a58f992d00f3a4ef4430ae 100644
--- a/tests/script/tsim/query/interval-offset.sim
+++ b/tests/script/tsim/query/interval-offset.sim
@@ -167,17 +167,17 @@ print ===> rows7: $data70 $data71 $data72 $data73 $data74 $data75
 #if $data70 != 1 then
 #  return -1
 #endi
-return 
+
 print =============== insert data into child table ct3 (n)
-sql insert into ct3 values ( '2021-12-21 01:01:01.000', NULL )
-sql insert into ct3 values ( '2021-12-31 01:01:01.000', 1 )
-sql insert into ct3 values ( '2022-01-01 01:01:06.000', 2 )
-sql insert into ct3 values ( '2022-01-07 01:01:10.000', 3 )
-sql insert into ct3 values ( '2022-01-31 01:01:16.000', 4 )
-sql insert into ct3 values ( '2022-02-01 01:01:20.000', 5 )
-sql insert into ct3 values ( '2022-02-28 01:01:26.000', 6 )
-sql insert into ct3 values ( '2022-03-01 01:01:30.000', 7 )
-sql insert into ct3 values ( '2022-03-08 01:01:36.000', 8 )
+sql insert into ct3 values ( '2021-12-21 01:01:01.000', NULL );
+sql insert into ct3 values ( '2021-12-31 01:01:01.000', 1 );
+sql insert into ct3 values ( '2022-01-01 01:01:06.000', 2 );
+sql insert into ct3 values ( '2022-01-07 01:01:10.000', 3 );
+sql insert into ct3 values ( '2022-01-31 01:01:16.000', 4 );
+sql insert into ct3 values ( '2022-02-01 01:01:20.000', 5 );
+sql insert into ct3 values ( '2022-02-28 01:01:26.000', 6 );
+sql insert into ct3 values ( '2022-03-01 01:01:30.000', 7 );
+sql insert into ct3 values ( '2022-03-08 01:01:36.000', 8 );
 
 sql select count(tbcol), sum(tbcol), max(tbcol), min(tbcol), count(*) from ct3 interval(1n, 1w)
 print ===> select count(tbcol), sum(tbcol), max(tbcol), min(tbcol), count(*) from ct3 interval(1n, 1w)