diff --git a/src/query/inc/qFilter.h b/src/query/inc/qFilter.h
index 33a526fec54283e8e6c1884b1e1da7570ee1f29d..ad4e5bba1af5ef2b07bab486ad9546b23e02f0fa 100644
--- a/src/query/inc/qFilter.h
+++ b/src/query/inc/qFilter.h
@@ -57,6 +57,11 @@ enum {
   FILTER_NO_REWRITE = 4,
 };
 
+enum {
+  RANGE_TYPE_UNIT = 1,
+  RANGE_TYPE_COL_RANGE,
+};
+
 typedef struct OptrStr {
   uint16_t optr;
   char    *str;
@@ -117,12 +122,18 @@ typedef struct SFilterGroup {
   uint8_t  *unitFlags;  // !unit result
 } SFilterGroup;
 
+typedef struct SFilterColInfo {
+  uint8_t type;
+  void   *info;
+} SFilterColInfo;
+
 typedef struct SFilterGroupCtx {
-  uint16_t num;
-  int32_t *col;
-  SArray *colRange;
+  uint16_t  colNum;
+  uint16_t *colIdx;
+  SArray  **colInfo;
 } SFilterGroupCtx;
 
+
 typedef struct SFilterCompare {
   __compar_fn_t pCompareFunc;
   int32_t       type;
@@ -195,6 +206,11 @@ typedef struct SFilterInfo {
 #define FILTER_GET_VAL_FIELD_DATA(fi) ((fi)->data)
 #define FILTER_GET_TYPE(fl) ((fl) & FLD_TYPE_MAX)
 
+
+#define FILTER_PUSH_UNIT(colInfo, u) do { SFilterColInfo* _info = malloc(sizeof(SFilterColInfo)); _info->type = RANGE_TYPE_UNIT; _info->info = u; taosArrayPush((SArray *)(colInfo), &_info);} while (0)
+#define FILTER_PUSH_RANGE(colInfo, cra) do { SFilterColInfo* _info = malloc(sizeof(SFilterColInfo)); _info->type = RANGE_TYPE_COL_RANGE; _info->info = cra; taosArrayPush((SArray *)(colInfo), &_info);} while (0)
+#define FILTER_COPY_IDX(dst, src, n) do { *(dst) = malloc(sizeof(uint16_t) * n); memcpy(*(dst), src, sizeof(uint16_t) * n);} while (0)
+
 #define FILTER_GROUP_UNIT(i, g, uid) ((i)->units + (g)->unitIdxs[uid])
 #define FILTER_UNIT_LEFT_FIELD(i, u) FILTER_GET_FIELD(i, (u)->left)
 #define FILTER_UNIT_RIGHT_FIELD(i, u) FILTER_GET_FIELD(i, (u)->right)
diff --git a/src/query/src/qFilter.c b/src/query/src/qFilter.c
index fa26d652fe68636761c9363c4dcc23be748a11af..986d0672fb1b08b6738489b74345cc3d9baf7da4 100644
--- a/src/query/src/qFilter.c
+++ b/src/query/src/qFilter.c
@@ -58,6 +58,14 @@ filter_desc_compare_func gDescCompare [FLD_TYPE_MAX] = {
 };
 
 
+static FORCE_INLINE int32_t filterCompareGroupCtx(const void *pLeft, const void *pRight) {
+  SFilterGroupCtx *left = *((SFilterGroupCtx**)pLeft), *right = *((SFilterGroupCtx**)pRight);
+  if (left->colNum > right->colNum) return 1;
+  if (left->colNum < right->colNum) return -1;
+  return 0;
+}
+
+
 int32_t filterInitUnitsFields(SFilterInfo *info) {
   info->unitSize = FILTER_DEFAULT_UNIT_SIZE;
   info->units = calloc(info->unitSize, sizeof(SFilterUnit));
@@ -886,6 +894,28 @@ void filterDumpInfoToString(SFilterInfo *info, const char *msg) {
   }
 }
 
+void filterFreeGroupCtx(SFilterGroupCtx* gRes) {
+  if (gRes == NULL) {
+    return;
+  }
+
+  tfree(gRes->colIdx);
+
+  int16_t i = 0, j = 0;
+
+  while (i < gRes->colNum) {
+    if (gRes->colInfo[j]) {
+      taosArrayDestroy(gRes->colInfo[j]);
+      ++i;
+    }
+
+    ++j;
+  }
+
+  tfree(gRes->colInfo);
+  tfree(gRes);
+}
+
 void filterFreeInfo(SFilterInfo *info) {
   CHK_RETV(info == NULL);
 
@@ -1038,72 +1068,50 @@ int32_t filterAddUnitRange(SFilterInfo *info, SFilterUnit* u, SFilterRMCtx *ctx,
 
 
 
-int32_t filterProcessUnitsInOneGroup(SFilterInfo *info, SFilterGroup* g, uint16_t id1, uint16_t id2, SArray* res, uint16_t *removedNum) {
+int32_t filterMergeBetweenColumns(SFilterInfo *info, SFilterGroupCtx* gRes, uint16_t colIdx) {
   bool isnull = false, notnull = false, isrange = false;
   int32_t num = 0;
-  SFilterRMCtx *cur = NULL;
-  SFilterUnit* u1 = FILTER_GROUP_UNIT(info, g, id1);
-  SFilterUnit* u2 = FILTER_GROUP_UNIT(info, g, id2);
-  uint8_t optr1 = FILTER_UNIT_OPTR(u1);
-  uint8_t optr2 = FILTER_UNIT_OPTR(u2);
-  uint16_t cidx = FILTER_UNIT_COL_IDX(u1);
-
-  int32_t type = FILTER_UNIT_DATA_TYPE(u1);
-
-  SET_AND_OPTR(optr1);
-  SET_AND_OPTR(optr2);
-  
-  CHK_JMP(CHK_AND_OPTR());
-
-  cur = filterInitMergeRange(type, 0);
-
-  if (!FILTER_NO_MERGE_OPTR(optr1)) {
-    filterAddUnitRange(info, u1, cur, TSDB_RELATION_AND);
-  }
-
-  if (!FILTER_NO_MERGE_OPTR(optr2)) {
-    filterAddUnitRange(info, u2, cur, TSDB_RELATION_AND);
-    CHK_JMP(MR_EMPTY_RES(cur));
-  }
-  
+  SArray* colArray = gRes->colInfo[colIdx];
+  int32_t size = (int32_t)taosArrayGetSize(colArray);
+  SFilterRMCtx* cur = filterInitMergeRange(type, 0);
   
-  for (int32_t i = id2 + 1; i < g->unitNum; ++i) {
-    SFilterUnit* u = FILTER_GROUP_UNIT(info, g, i);
-    if (cidx != FILTER_UNIT_COL_IDX(u)) {
-      continue;
-    }
+  for (uint32_t i = 0; i < size; ++i) {
+    SFilterColInfo* colInfo = taosArrayGet(colArray, i);
+    SFilterUnit* u = colInfo->info;
+    int32_t type = FILTER_UNIT_DATA_TYPE(u);      
+    uint8_t optr = FILTER_UNIT_OPTR(u);
 
-    ++(*removedNum);
-    optr2 = FILTER_UNIT_OPTR(u);
-    SET_AND_OPTR(optr2);
+    SET_AND_OPTR(optr);
     CHK_JMP(CHK_AND_OPTR());
-    
-    if (!FILTER_NO_MERGE_OPTR(optr2)) {
+
+    if (!FILTER_NO_MERGE_OPTR(optr)) {
       filterAddUnitRange(info, u, cur, TSDB_RELATION_AND);
       CHK_JMP(MR_EMPTY_RES(cur));
     }
   }
 
-  SFilterColRange cra = {0};
-  cra.idx = cidx;
+  SFilterColRange *cra = calloc(1, sizeof(*cra));
+  cra->idx = colIdx;
 
   filterGetMergeRangeNum(cur, &num);
   assert(num == 1 || num == 0);
 
   if (num == 1) {
-    filterGetMergeRangeRes(cur, &cra.ra);
-    filterPostProcessRange(cur, &cra.ra, &cra.notNull);
+    filterGetMergeRangeRes(cur, &cra->ra);
+    filterPostProcessRange(cur, &cra->ra, &cra->notNull);
   } else {
     if (isnull) {
-      cra.isNull = true;
+      cra->isNull = true;
     }
 
     if (notnull) {
-      cra.notNull = true;
+      cra->notNull = true;
     }
   }
 
-  taosArrayPush(res, &cra);
+  taosArrayClear(colArray);
+
+  FILTER_PUSH_RANGE(colArray, cra);
 
   filterFreeMergeRange(cur);
 
@@ -1111,9 +1119,8 @@ int32_t filterProcessUnitsInOneGroup(SFilterInfo *info, SFilterGroup* g, uint16_
 
 _err_return:
 
-  g->unitNum = 0;
-  
-  *removedNum = g->unitNum;
+  taosArrayDestroy(colArray);
+  gRes->colInfo[colIdx] = NULL;
 
   filterFreeMergeRange(cur);
 
@@ -1122,97 +1129,76 @@ _err_return:
 }
 
 
-int32_t filterProcessUnits(SFilterInfo *info, SFilterGroupCtx*** res) {
-  int32_t *col = NULL;
-  SFilterGroupCtx *gctx = NULL;
-  SArray *colRange = NULL;
-  bool gresUsed = false;
-  bool colInit = false;
-  uint16_t removedNum = 0;
+int32_t filterMergeBetweenUnits(SFilterInfo *info, SFilterGroupCtx** gRes, int32_t* gResNum) {
+  bool emptyGroup = false;
+  uint16_t *colIdx = malloc(info->fields[FLD_TYPE_COLUMN].num * sizeof(uint16_t));
+  uint16_t colIdxi = 0;
+  uint16_t gResIdx = 0;
   
   for (uint16_t i = 0; i < info->groupNum; ++i) {
     SFilterGroup* g = info->groups + i;
 
-    if (g->unitNum <= 1) {
-      continue;
-    }
-        
-    gresUsed = false;
-    colInit = false;
-
-    removedNum = 0;
+    gRes[gResIdx] = calloc(1, sizeof(SFilterGroupCtx));
+    gRes[gResIdx]->colInfo = calloc(info->fields[FLD_TYPE_COLUMN].num, POINTER_BYTES);
+    colIdxi = 0;
+    emptyGroup = false;
     
     for (uint16_t j = 0; j < g->unitNum; ++j) {
       SFilterUnit* u = FILTER_GROUP_UNIT(info, g, j);
-      int32_t type = FILTER_UNIT_DATA_TYPE(u);
-      if (FILTER_NO_MERGE_DATA_TYPE(type)) {
-        continue;
-      }
+      uint16_t cidx = FILTER_UNIT_COL_IDX(u);
 
-      if (colInit == false) {
-        if (col == NULL) {
-          col = calloc(info->fields[FLD_TYPE_COLUMN].num, sizeof(int32_t));
-        } else {
-          memset(col, 0, info->fields[FLD_TYPE_COLUMN].num * sizeof(int32_t));
-        }
-        
-        colInit = true;
+      if (gRes[gResIdx]->colInfo[cidx] == NULL) {
+        gRes[gResIdx]->colInfo[cidx] = (SArray *)taosArrayInit(4, POINTER_BYTES);
+        colIdx[colIdxi++] = cidx;
+        ++gRes[gResIdx]->colNum;
       }
       
-      uint16_t cidx = FILTER_UNIT_COL_IDX(u);
-    
-      if (col[cidx] == 0) {
-        col[cidx] = j + 1;
-      } else if (col[cidx] == -1) {
-        continue;
-      } else {
-        if (colRange == NULL) {
-          colRange = taosArrayInit(4, sizeof(SFilterColRange));
-        }
-
-        removedNum += 2;
+      FILTER_PUSH_UNIT(gRes[gResIdx]->colInfo[cidx], u);
+    }
 
-        filterProcessUnitsInOneGroup(info, g, col[cidx] - 1, j, colRange, &removedNum);
+    if (colIdxi > 1) {
+      qsort(colIdx, colIdxi, sizeof(uint16_t), compareUint16Val);
+    }
 
-        col[cidx] = -1;
+    for (uint16_t l = 0; l < colIdxi; ++l) {
+      SArray* colArray = gRes[gResIdx]->colInfo[colIdx[l]];
+      int32_t size = (int32_t)taosArrayGetSize(colArray);
 
-        if (g->unitNum == 0) {
-          break;
-        } else {
-          gresUsed = true;
-        }
+      if (size <= 1) {
+        continue;
       }
-    }
 
-    if (g->unitNum == 0) {
-      if (gresUsed) {
-        taosArrayClear(colRange);
-      }
+      SFilterColInfo* colInfo = taosArrayGet(colArray, 0);
+      SFilterUnit* u = colInfo->info;
+      int32_t type = FILTER_UNIT_DATA_TYPE(u);      
 
-      continue;
-    }
+      if (type == TSDB_DATA_TYPE_BINARY || type == TSDB_DATA_TYPE_NCHAR) {
+        continue;
+      }
 
-    if (gresUsed) {
-      gctx = malloc(sizeof(*gctx));
-      gctx->num = g->unitNum - removedNum + 1;
-      gctx->col = col;
-      gctx->colRange = colRange;
+      filterMergeBetweenColumns(info, gRes[gResIdx], colIdx[l]);
 
-      col = NULL;
-      colRange = NULL;
-      
-      if (*res == NULL) {
-        *res = calloc(info->groupNum, sizeof(SFilterGroupCtx *));
+      if (gRes[gResIdx]->colInfo[colIdx[l]] == NULL) {
+        emptyGroup = true;
+        break;
       }
+    }
 
-      (*res)[i] = gctx;
+    if (emptyGroup) {
+      filterFreeGroupCtx(gRes[gResIdx]);
+      gRes[gResIdx] = NULL;
+    
+      continue;
     }
+    
+    gRes[gResIdx]->colNum = colIdxi;
+    FILTER_COPY_IDX(&gRes[gResIdx]->colIdx, colIdx, colIdxi);
+    ++gResIdx;
   }
 
-  tfree(col);
-  if (colRange) {
-    taosArrayDestroy(colRange);
-  }
+  tfree(colIdx);
+
+  *gResNum = gResIdx;
 
   return TSDB_CODE_SUCCESS;
 }
@@ -1220,7 +1206,7 @@ int32_t filterProcessUnits(SFilterInfo *info, SFilterGroupCtx*** res) {
 
 
 
-int32_t filterProcessGroupsSameColumn(SFilterInfo *info, uint16_t id1, uint16_t id2, SArray* res, uint16_t *removedNum, SFilterGroupCtx** unitRes) {
+int32_t filterMergeTwoGroups(SFilterInfo *info, uint16_t id1, uint16_t id2, SArray* res, uint16_t *removedNum, SFilterGroupCtx** unitRes) {
   bool isnull = false, notnull = false;
   int32_t num = 0;
   SFilterColRange *cra = NULL;
@@ -1372,7 +1358,58 @@ _err_return:
 }
 
 
-int32_t filterProcessGroups(SFilterInfo *info, SFilterGroupCtx** unitRes, SFilterGroupCtx* groupRes) {
+int32_t filterMergeBetweenGroups(SFilterInfo *info, SFilterGroupCtx** gRes, int32_t *gResNum) {
+  if (*gResNum <= 1) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  qsort(gRes, *gResNum, POINTER_BYTES, filterCompareGroupCtx);
+
+  int32_t pEnd = 0, cStart = 0, cEnd = 0;
+  uint16_t pColNum = 0, cColNum = 0; 
+  int32_t movedNum = 0;
+
+  cColNum = gRes[0]->colNum;
+
+  for (int32_t i = 1; i < *gResNum; ++i) {
+    if (gRes[i]->colNum == cColNum) {
+      continue;
+    }
+
+    cEnd = i - 1;
+
+    movedNum = 0;
+    if (pColNum > 0) {
+      for (int32_t m = 0; m <= pEnd; ++m) {
+        for (int32_t n = cStart; n <= cEnd; ++n) {
+          filterMergeTwoGroups(&gRes[m], &gRes[n]);
+
+          if (gRes[n] == NULL) {
+            memmove(&gRes[n], &gRes[n+1], (*gResNum-n-1) * POINTER_BYTES);
+            --cEnd;
+            --(*gResNum);
+            ++movedNum;
+          }
+        }
+      }
+    }
+
+    for (int32_t m = cStart; m <= cEnd; ++m) {
+      for (int32_t n = cStart + 1; n <= cEnd; ++n) {
+        filterMergeTwoGroups(&gRes[m], &gRes[n]);
+      }
+    }
+
+    pColNum = cColNum;
+    pEnd = cEnd;
+
+    i -= movedNum;
+    cStart = i;
+    cEnd = i;
+    cColNum = gRes[i]->colNum;
+  }
+  
+
   int32_t *col = NULL;
   uint16_t cidx;
   uint16_t removedNum = 0;
@@ -1462,10 +1499,7 @@ int32_t filterProcessGroups(SFilterInfo *info, SFilterGroupCtx** unitRes, SFilte
   return TSDB_CODE_SUCCESS;
 
 _err_return:
-  tfree(col);
-  if (colRange) {
-    taosArrayDestroy(colRange);
-  }
+  tfree(gColNum);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -1656,12 +1690,13 @@ int32_t filterRewrite(SFilterInfo *info, SFilterGroupCtx* gctx, SFilterGroupCtx*
 
 
 int32_t filterPreprocess(SFilterInfo *info) {
-  SFilterGroupCtx** unitsRes = NULL;
+  SFilterGroupCtx** gRes = calloc(info->groupNum, sizeof(SFilterGroupCtx *));
+  int32_t gResNum = 0;
   SFilterGroupCtx groupRes = {0};
   
-  filterProcessUnits(info, &unitsRes);
+  filterMergeBetweenUnits(info, gRes, &gResNum);
 
-  filterProcessGroups(info, unitsRes, &groupRes);
+  filterMergeBetweenGroups(info, gRes, gResNum);
 
   if (FILTER_GET_FLAG(info->flags, FILTER_ALL)) {
     qInfo("Final - FilterInfo: [ALL]");
@@ -1673,8 +1708,6 @@ int32_t filterPreprocess(SFilterInfo *info) {
     return TSDB_CODE_SUCCESS;
   }  
 
-  filterCheckRangeCoverage(info, &groupRes, unitsRes);
-
   //TODO GET COLUMN RANGE
 
   filterRewrite(info, &groupRes, unitsRes);
diff --git a/tests/script/general/parser/condition.sim b/tests/script/general/parser/condition.sim
index 8048ccc1926e14f083fa7f51adb50054d7e58500..c2b0f2e0f68fb90bcd28599354010f3174b7e59a 100644
--- a/tests/script/general/parser/condition.sim
+++ b/tests/script/general/parser/condition.sim
@@ -1247,7 +1247,7 @@ if $data00 != @21-05-05 18:19:04.000@ then
   return -1
 endi
 
-sql select * from stb1 where (c1 > 60 and c2 > 40) or (c1 > 62 and c2 > 50);
+xxx sql select * from stb1 where (c1 > 60 and c2 > 40) or (c1 > 62 and c2 > 50);
 if $rows != 4 then
   return -1
 endi