diff --git a/src/query/src/qast.c b/src/query/src/qast.c
index 7b97e6f9c599b0f599a9bc32577a6f5443b0dec6..903d49a0d9321a6c1042a78900f26c4c2ee8cc54 100644
--- a/src/query/src/qast.c
+++ b/src/query/src/qast.c
@@ -783,13 +783,17 @@ static void exprTreeTraverseImpl(tExprNode *pExpr, SArray *pResult, SBinaryFilte
   taosArrayCopy(pResult, array);
 }
 
-static void tSQLBinaryTraverseOnSkipList(tExprNode *pExpr, SArray *pResult, SSkipList *pSkipList,
-    SBinaryFilterSupp *param) {
+
+static void tSQLBinaryTraverseOnSkipList(
+  tExprNode *pExpr,
+  SArray *pResult,
+  SSkipList *pSkipList,
+  SBinaryFilterSupp *param
+) {
   SSkipListIterator* iter = tSkipListCreateIter(pSkipList);
 
   while (tSkipListIterNext(iter)) {
     SSkipListNode *pNode = tSkipListIterGet(iter);
-    
     if (filterItem(pExpr, pNode, param)) {
       taosArrayPush(pResult, SL_GET_NODE_DATA(pNode));
     }
diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 58fd4eb6535b971324667562fe5011e8c8cce8b1..4b565567ab4815164a29cd67d049eab343dbdd39 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -1357,16 +1357,26 @@ bool tSkipListNodeFilterCallback(const void* pNode, void* param) {
 
   STable* pTable = *(STable**)(SL_GET_NODE_DATA((SSkipListNode*)pNode));
 
-  char*  val = dataRowTuple(pTable->tagVal);  // todo not only the first column
+  char*  val = NULL;
   int8_t type = pInfo->sch.type;
+  
+  if (pInfo->colIndex == TSDB_TBNAME_COLUMN_INDEX) {
+    val = pTable->name;
+    type = TSDB_DATA_TYPE_BINARY;
+  } else {
+    val = dataRowTuple(pTable->tagVal);  // todo not only the first column
+  }
 
   int32_t ret = 0;
-  if (pInfo->q.nType == TSDB_DATA_TYPE_BINARY || pInfo->q.nType == TSDB_DATA_TYPE_NCHAR) {
-    ret = pInfo->compare(val, pInfo->q.pz);
+  if (type == TSDB_DATA_TYPE_BINARY || type == TSDB_DATA_TYPE_NCHAR) {
+    if (pInfo->optr == TSDB_RELATION_IN) {
+      ret = pInfo->compare(val, pInfo->q.arr);
+    } else {
+      ret = pInfo->compare(val, pInfo->q.pz);
+    }
   } else {
     tVariant t = {0};
     tVariantCreateFromBinary(&t, val, (uint32_t)pInfo->sch.bytes, type);
-
     ret = pInfo->compare(&t.i64Key, &pInfo->q.i64Key);
   }
 
@@ -1393,7 +1403,7 @@ bool tSkipListNodeFilterCallback(const void* pNode, void* param) {
       return ret == 0;
     }
     case TSDB_RELATION_IN: {
-
+      return ret == 1;
     }
 
     default:
@@ -1474,8 +1484,8 @@ int32_t tsdbQueryByTagsCond(
       expr = calloc(1, sizeof(tExprNode));
       expr->nodeType = TSQL_NODE_EXPR;
       expr->_node.optr = tagNameRelType;
-      expr->_node.pLeft = tbnameExpr;
-      expr->_node.pRight = tagExpr;
+      expr->_node.pLeft = tagExpr;
+      expr->_node.pRight = tbnameExpr;
     }
   }
 
diff --git a/src/util/src/tarray.c b/src/util/src/tarray.c
index ef57c2432f4953a006a6aac78ba12b240f50b455..51684e767cd517bda0d7b69e04e2fc3c3fac4acd 100755
--- a/src/util/src/tarray.c
+++ b/src/util/src/tarray.c
@@ -77,10 +77,11 @@ void* taosArrayPush(SArray* pArray, void* pData) {
 }
 
 void* taosArrayPop(SArray* pArray) {
-  if (pArray == NULL || pArray->size == 0) {
+  assert( pArray != NULL );
+
+  if (pArray->size == 0) {
     return NULL;
   }
-
   pArray->size -= 1;
   return TARRAY_GET_ELEM(pArray, pArray->size);
 }
diff --git a/src/util/src/tcompare.c b/src/util/src/tcompare.c
index 98e0c9c9a20623249223d9189595ca26f24eb886..4d78a8cf0adada9841bd70b006d5ceb588faa4b6 100644
--- a/src/util/src/tcompare.c
+++ b/src/util/src/tcompare.c
@@ -215,7 +215,7 @@ static UNUSED_FUNC int32_t compareStrPatternComp(const void* pLeft, const void*
   return (ret == TSDB_PATTERN_MATCH) ? 0 : 1;
 }
 
-static int32_t compareStrInList(const void* pLeft, const void* pRight) {
+static int32_t compareFindStrInArray(const void* pLeft, const void* pRight) {
   const SArray* arr = (const SArray*)pRight;
   return taosArraySearchString(arr, pLeft) == NULL ? 0 : 1;
 }
@@ -277,7 +277,7 @@ __compar_fn_t getComparFunc(int32_t type, int32_t filterDataType, int32_t optr)
 
       } else if (optr == TSDB_RELATION_IN) {
         assert(filterDataType == TSDB_DATA_TYPE_ARRAY);
-        comparFn = compareStrInList;
+        comparFn = compareFindStrInArray;
 
       } else { /* normal relational comparFn */
         assert(filterDataType == TSDB_DATA_TYPE_BINARY);