diff --git a/src/gausskernel/runtime/executor/execUtils.cpp b/src/gausskernel/runtime/executor/execUtils.cpp
index 50de2f74c..06d632b61 100644
--- a/src/gausskernel/runtime/executor/execUtils.cpp
+++ b/src/gausskernel/runtime/executor/execUtils.cpp
@@ -1300,28 +1300,7 @@ void ExecCloseIndices(ResultRelInfo* resultRelInfo)
      * such stuff will be cleaned up automatically in FreeExecutorState.
      */
 }
-void OpFusionExecCloseIndices(ResultRelInfo* resultRelInfo)
-{
-    int i;
-    int numIndices;
-    RelationPtr indexDescs;
 
-    numIndices = resultRelInfo->ri_NumIndices;
-    indexDescs = resultRelInfo->ri_IndexRelationDescs;
-
-    for (i = 0; i < numIndices; i++) {
-        if (indexDescs[i] == NULL)
-            continue; /* shouldn't happen? */
-
-        /* Drop lock acquired by ExecOpenIndices */
-        index_close(indexDescs[i], NoLock);
-    }
-
-    /*
-     * XXX should free indexInfo array here too?  Currently we assume that
-     * such stuff will be cleaned up automatically in FreeExecutorState.
-     */
-}
 /*
  * Copied from ExecInsertIndexTuples
  */
diff --git a/src/gausskernel/runtime/opfusion/opfusion_delete.cpp b/src/gausskernel/runtime/opfusion/opfusion_delete.cpp
index 7c8ecfe59..02512b712 100644
--- a/src/gausskernel/runtime/opfusion/opfusion_delete.cpp
+++ b/src/gausskernel/runtime/opfusion/opfusion_delete.cpp
@@ -285,7 +285,7 @@ bool DeleteFusion::execute(long max_rows, char *completionTag)
     /* ***************
      * step 3: done *
      *************** */
-    OpFusionExecCloseIndices(result_rel_info);
+    ExecCloseIndices(result_rel_info);
     m_local.m_isCompleted = true;
     m_local.m_scan->End(true);
     ExecDoneStepInFusion(m_c_local.m_estate);
diff --git a/src/gausskernel/runtime/opfusion/opfusion_insert.cpp b/src/gausskernel/runtime/opfusion/opfusion_insert.cpp
index 2d2b01979..455756d79 100644
--- a/src/gausskernel/runtime/opfusion/opfusion_insert.cpp
+++ b/src/gausskernel/runtime/opfusion/opfusion_insert.cpp
@@ -241,7 +241,7 @@ static void ExecReleaseResource(Tuple tuple, TupleTableSlot *slot, ResultRelInfo
 {
     tableam_tops_free_tuple(tuple);
     (void)ExecClearTuple(slot);
-    OpFusionExecCloseIndices(result_rel_info);
+    ExecCloseIndices(result_rel_info);
     ExecDoneStepInFusion(estate);
     if (bucket_rel != NULL) {
         bucketCloseRelation(bucket_rel);
diff --git a/src/gausskernel/runtime/opfusion/opfusion_update.cpp b/src/gausskernel/runtime/opfusion/opfusion_update.cpp
index 657d81b2b..bec178d21 100644
--- a/src/gausskernel/runtime/opfusion/opfusion_update.cpp
+++ b/src/gausskernel/runtime/opfusion/opfusion_update.cpp
@@ -571,7 +571,7 @@ lreplace:
     /****************
      * step 3: done *
      ****************/
-    OpFusionExecCloseIndices(result_rel_info);
+    ExecCloseIndices(result_rel_info);
     m_local.m_isCompleted = true;
     m_local.m_scan->End(true);
     ExecDoneStepInFusion(m_c_local.m_estate);
diff --git a/src/gausskernel/storage/buffer/bufmgr.cpp b/src/gausskernel/storage/buffer/bufmgr.cpp
index 285172e5f..8e79236af 100644
--- a/src/gausskernel/storage/buffer/bufmgr.cpp
+++ b/src/gausskernel/storage/buffer/bufmgr.cpp
@@ -2032,7 +2032,11 @@ static bool ReadBuffer_common_ReadBlock(SMgrRelation smgr, char relpersistence,
                 pgstat_count_buffer_read_time(INSTR_TIME_GET_MICROSEC(io_time));
                 INSTR_TIME_ADD(u_sess->instr_cxt.pg_buffer_usage->blk_read_time, io_time);
                 pgstatCountBlocksReadTime4SessionLevel(INSTR_TIME_GET_MICROSEC(io_time));
-            } 
+            } else {
+                INSTR_TIME_SET_CURRENT(io_time);
+                INSTR_TIME_SUBTRACT(io_time, io_start);
+                pgstatCountBlocksReadTime4SessionLevel(INSTR_TIME_GET_MICROSEC(io_time));
+            }
 
             /* check for garbage data */
             if (rdStatus == SMGR_RD_CRC_ERROR) {
diff --git a/src/include/executor/executor.h b/src/include/executor/executor.h
index 7f2b5828a..14ee0ad6a 100755
--- a/src/include/executor/executor.h
+++ b/src/include/executor/executor.h
@@ -644,7 +644,6 @@ extern Partition ExecOpenScanParitition(
 
 extern void ExecOpenIndices(ResultRelInfo* resultRelInfo, bool speculative);
 extern void ExecCloseIndices(ResultRelInfo* resultRelInfo);
-extern void OpFusionExecCloseIndices(ResultRelInfo* resultRelInfo);
 extern List* ExecInsertIndexTuples(
     TupleTableSlot* slot, ItemPointer tupleid, EState* estate, Relation targetPartRel,
     Partition p, int2 bucketId, bool* conflict, Bitmapset *modifiedIdxAttrs, bool inplaceUpdated = false);