diff --git a/src/query/inc/qFilter.h b/src/query/inc/qFilter.h
index dcfbe7f0952bffe49caa2b7869d994935c47ac3f..e1b81f264813ea719dd0f21ce1d6aaa8e4bcab00 100644
--- a/src/query/inc/qFilter.h
+++ b/src/query/inc/qFilter.h
@@ -181,6 +181,7 @@ typedef struct SFilterColInfo {
   uint8_t type;
   int32_t dataType;
   uint8_t optr;   // for equal operation in the relation of RELATION_IN
+  int64_t value;  // for equal operation in the relation of RELATION_IN
   void   *info;
 } SFilterColInfo;
 
diff --git a/src/query/src/qFilter.c b/src/query/src/qFilter.c
index d3d96fae337c34a272447868f5d10cda5f19e888..0a8a613c6e70ddd70b9ad20ce5a3def91702541d 100644
--- a/src/query/src/qFilter.c
+++ b/src/query/src/qFilter.c
@@ -1988,8 +1988,9 @@ int32_t filterMergeUnits(SFilterInfo *info, SFilterGroupCtx* gRes, uint16_t colI
       filterAddUnitRange(info, u, ctx, TSDB_RELATION_AND);
       CHK_JMP(MR_EMPTY_RES(ctx));
     }
-    if(FILTER_UNIT_OPTR(u) == TSDB_RELATION_EQUAL){
+    if(FILTER_UNIT_OPTR(u) == TSDB_RELATION_EQUAL && !FILTER_NO_MERGE_DATA_TYPE(FILTER_UNIT_DATA_TYPE(u))){
       gRes->colInfo[colIdx].optr = TSDB_RELATION_EQUAL;
+      SIMPLE_COPY_VALUES(&gRes->colInfo[colIdx].value, FILTER_UNIT_VAL_DATA(info, u));
     }
   }
 
@@ -2102,15 +2103,18 @@ void filterCheckColConflict(SFilterGroupCtx* gRes1, SFilterGroupCtx* gRes2, bool
         continue;
       }
 
-      // for long in operation
-      if (gRes1->colInfo[idx1].optr == TSDB_RELATION_EQUAL && gRes2->colInfo[idx2].optr == TSDB_RELATION_EQUAL) {
+      if (FILTER_NO_MERGE_DATA_TYPE(gRes1->colInfo[idx1].dataType)) {
         *conflict = true;
         return;
       }
 
-      if (FILTER_NO_MERGE_DATA_TYPE(gRes1->colInfo[idx1].dataType)) {
-        *conflict = true;
-        return;
+      // for long in operation
+      if (gRes1->colInfo[idx1].optr == TSDB_RELATION_EQUAL && gRes2->colInfo[idx2].optr == TSDB_RELATION_EQUAL) {
+        SFilterRangeCtx* ctx = gRes1->colInfo[idx1].info;
+        if (ctx->pCompareFunc(&gRes1->colInfo[idx1].value, &gRes2->colInfo[idx2].value)){
+          *conflict = true;
+          return;
+        }
       }
       
       ++n;