diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index f6b8e194cb..eeb9b60270 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -1333,6 +1333,9 @@ static int32_t rewriteSystemInfoFuncImpl(STranslateContext* pCxt, char* pLiteral
     pVal->isNull = true;
   } else {
     pVal->literal = pLiteral;
+    if (IS_VAR_DATA_TYPE(pVal->node.resType.type)) {
+      pVal->node.resType.bytes = strlen(pLiteral);
+    }
   }
   if (DEAL_RES_ERROR != translateValue(pCxt, pVal)) {
     *pNode = (SNode*)pVal;
diff --git a/source/libs/parser/src/parUtil.c b/source/libs/parser/src/parUtil.c
index 69917ad7f9..27a9102422 100644
--- a/source/libs/parser/src/parUtil.c
+++ b/source/libs/parser/src/parUtil.c
@@ -236,7 +236,6 @@ int32_t buildSyntaxErrMsg(SMsgBuf* pBuf, const char* additionalInfo, const char*
 
   const char* prefix = "syntax error";
   if (sourceStr == NULL) {
-    assert(additionalInfo != NULL);
     snprintf(pBuf->buf, pBuf->len, msgFormat1, additionalInfo);
     return TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
   }
@@ -254,40 +253,25 @@ int32_t buildSyntaxErrMsg(SMsgBuf* pBuf, const char* additionalInfo, const char*
   return TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
 }
 
-SSchema* getTableColumnSchema(const STableMeta* pTableMeta) {
-  assert(pTableMeta != NULL);
-  return (SSchema*)pTableMeta->schema;
-}
+SSchema* getTableColumnSchema(const STableMeta* pTableMeta) { return (SSchema*)pTableMeta->schema; }
 
 static SSchema* getOneColumnSchema(const STableMeta* pTableMeta, int32_t colIndex) {
-  assert(pTableMeta != NULL && pTableMeta->schema != NULL && colIndex >= 0 &&
-         colIndex < (getNumOfColumns(pTableMeta) + getNumOfTags(pTableMeta)));
-
   SSchema* pSchema = (SSchema*)pTableMeta->schema;
   return &pSchema[colIndex];
 }
 
 SSchema* getTableTagSchema(const STableMeta* pTableMeta) {
-  assert(pTableMeta != NULL &&
-         (pTableMeta->tableType == TSDB_SUPER_TABLE || pTableMeta->tableType == TSDB_CHILD_TABLE));
   return getOneColumnSchema(pTableMeta, getTableInfo(pTableMeta).numOfColumns);
 }
 
 int32_t getNumOfColumns(const STableMeta* pTableMeta) {
-  assert(pTableMeta != NULL);
   // table created according to super table, use data from super table
   return getTableInfo(pTableMeta).numOfColumns;
 }
 
-int32_t getNumOfTags(const STableMeta* pTableMeta) {
-  assert(pTableMeta != NULL);
-  return getTableInfo(pTableMeta).numOfTags;
-}
+int32_t getNumOfTags(const STableMeta* pTableMeta) { return getTableInfo(pTableMeta).numOfTags; }
 
-STableComInfo getTableInfo(const STableMeta* pTableMeta) {
-  assert(pTableMeta != NULL);
-  return pTableMeta->tableInfo;
-}
+STableComInfo getTableInfo(const STableMeta* pTableMeta) { return pTableMeta->tableInfo; }
 
 STableMeta* tableMetaDup(const STableMeta* pTableMeta) {
   size_t size = TABLE_META_SIZE(pTableMeta);
diff --git a/source/libs/planner/src/planOptimizer.c b/source/libs/planner/src/planOptimizer.c
index 88930b6269..55d61d635d 100644
--- a/source/libs/planner/src/planOptimizer.c
+++ b/source/libs/planner/src/planOptimizer.c
@@ -75,6 +75,11 @@ static SLogicNode* optFindPossibleNode(SLogicNode* pNode, FMayBeOptimized func)
   return NULL;
 }
 
+static void optResetParent(SLogicNode* pNode) {
+  SNode* pChild = NULL;
+  FOREACH(pChild, pNode->pChildren) { ((SLogicNode*)pChild)->pParent = pNode; }
+}
+
 EDealRes scanPathOptHaveNormalColImpl(SNode* pNode, void* pContext) {
   if (QUERY_NODE_COLUMN == nodeType(pNode)) {
     // *((bool*)pContext) = (COLUMN_TYPE_TAG != ((SColumnNode*)pNode)->colType);
@@ -1460,6 +1465,7 @@ static int32_t rewriteTailOptCreateSort(SIndefRowsFuncLogicNode* pIndef, SLogicN
 
   pSort->groupSort = rewriteTailOptNeedGroupSort(pIndef);
   TSWAP(pSort->node.pChildren, pIndef->node.pChildren);
+  optResetParent((SLogicNode*)pSort);
   pSort->node.precision = pIndef->node.precision;
 
   SFunctionNode* pTail = NULL;
@@ -1667,6 +1673,7 @@ static int32_t rewriteUniqueOptCreateAgg(SIndefRowsFuncLogicNode* pIndef, SLogic
   }
 
   TSWAP(pAgg->node.pChildren, pIndef->node.pChildren);
+  optResetParent((SLogicNode*)pAgg);
   pAgg->node.precision = pIndef->node.precision;
 
   int32_t code = TSDB_CODE_SUCCESS;
diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index edeff83d5a..7644fc3b19 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -1203,7 +1203,8 @@ typedef struct SQnodeSplitInfo {
 
 static bool qndSplFindSplitNode(SSplitContext* pCxt, SLogicSubplan* pSubplan, SLogicNode* pNode,
                                 SQnodeSplitInfo* pInfo) {
-  if (QUERY_NODE_LOGIC_PLAN_SCAN == nodeType(pNode) && NULL != pNode->pParent) {
+  if (QUERY_NODE_LOGIC_PLAN_SCAN == nodeType(pNode) && NULL != pNode->pParent &&
+      ((SScanLogicNode*)pNode)->scanSeq[0] < 1 && ((SScanLogicNode*)pNode)->scanSeq[1] < 1) {
     pInfo->pSplitNode = pNode;
     pInfo->pSubplan = pSubplan;
     return true;
diff --git a/source/libs/planner/test/planBasicTest.cpp b/source/libs/planner/test/planBasicTest.cpp
index bf841e6679..4f4c23eacc 100644
--- a/source/libs/planner/test/planBasicTest.cpp
+++ b/source/libs/planner/test/planBasicTest.cpp
@@ -81,6 +81,8 @@ TEST_F(PlanBasicTest, tailFunc) {
   run("SELECT TAIL(c2 + 10, 10, 80) FROM t1 WHERE c1 > 10 PARTITION BY c1 LIMIT 5");
 
   run("SELECT TAIL(c1, 2, 1) FROM st1s1 UNION ALL SELECT c1 FROM st1s2");
+
+  run("SELECT TAIL(c1, 1) FROM st2 WHERE jtag->'tag1' > 10");
 }
 
 TEST_F(PlanBasicTest, interpFunc) {
diff --git a/source/libs/planner/test/planOtherTest.cpp b/source/libs/planner/test/planOtherTest.cpp
index b8963c29f9..2c031aa3a8 100644
--- a/source/libs/planner/test/planOtherTest.cpp
+++ b/source/libs/planner/test/planOtherTest.cpp
@@ -91,10 +91,3 @@ TEST_F(PlanOtherTest, delete) {
 
   run("DELETE FROM st1 WHERE ts > now - 2d and ts < now - 1d AND tag1 = 10");
 }
-
-TEST_F(PlanOtherTest, queryPolicy) {
-  useDb("root", "test");
-
-  tsQueryPolicy = QUERY_POLICY_QNODE;
-  run("SELECT COUNT(*) FROM st1");
-}
diff --git a/source/libs/planner/test/planTestMain.cpp b/source/libs/planner/test/planTestMain.cpp
index 46c2f33048..8f6fc832a2 100644
--- a/source/libs/planner/test/planTestMain.cpp
+++ b/source/libs/planner/test/planTestMain.cpp
@@ -78,6 +78,7 @@ static void parseArg(int argc, char* argv[]) {
     {"skipSql", required_argument, NULL, 's'},
     {"limitSql", required_argument, NULL, 'i'},
     {"log", required_argument, NULL, 'l'},
+    {"queryPolicy", required_argument, NULL, 'q'},
     {0, 0, 0, 0}
   };
   // clang-format on
@@ -95,6 +96,9 @@ static void parseArg(int argc, char* argv[]) {
       case 'l':
         setLogLevel(optarg);
         break;
+      case 'q':
+        setQueryPolicy(optarg);
+        break;
       default:
         break;
     }
diff --git a/source/libs/planner/test/planTestUtil.cpp b/source/libs/planner/test/planTestUtil.cpp
index d19e277a7d..4780249ec9 100644
--- a/source/libs/planner/test/planTestUtil.cpp
+++ b/source/libs/planner/test/planTestUtil.cpp
@@ -24,6 +24,7 @@
 #include "mockCatalogService.h"
 #include "parser.h"
 #include "planInt.h"
+#include "tglobal.h"
 
 using namespace std;
 using namespace testing;
@@ -53,6 +54,7 @@ DumpModule g_dumpModule = DUMP_MODULE_NOTHING;
 int32_t    g_skipSql = 0;
 int32_t    g_limitSql = 0;
 int32_t    g_logLevel = 131;
+int32_t    g_queryPolicy = QUERY_POLICY_VNODE;
 
 void setDumpModule(const char* pModule) {
   if (NULL == pModule) {
@@ -79,6 +81,7 @@ void setDumpModule(const char* pModule) {
 void setSkipSqlNum(const char* pNum) { g_skipSql = stoi(pNum); }
 void setLimitSqlNum(const char* pNum) { g_limitSql = stoi(pNum); }
 void setLogLevel(const char* pLogLevel) { g_logLevel = stoi(pLogLevel); }
+void setQueryPolicy(const char* pQueryPolicy) { g_queryPolicy = stoi(pQueryPolicy); }
 
 int32_t getLogLevel() { return g_logLevel; }
 
@@ -105,7 +108,23 @@ class PlannerTestBaseImpl {
     }
     ++sqlNum_;
 
+    switch (g_queryPolicy) {
+      case QUERY_POLICY_VNODE:
+      case QUERY_POLICY_HYBRID:
+      case QUERY_POLICY_QNODE:
+        runImpl(sql, g_queryPolicy);
+        break;
+      default:
+        runImpl(sql, QUERY_POLICY_VNODE);
+        runImpl(sql, QUERY_POLICY_HYBRID);
+        runImpl(sql, QUERY_POLICY_QNODE);
+        break;
+    }
+  }
+
+  void runImpl(const string& sql, int32_t queryPolicy) {
     reset();
+    tsQueryPolicy = queryPolicy;
     try {
       SQuery* pQuery = nullptr;
       doParseSql(sql, &pQuery);
diff --git a/source/libs/planner/test/planTestUtil.h b/source/libs/planner/test/planTestUtil.h
index f9942c93a7..b0ddd726a6 100644
--- a/source/libs/planner/test/planTestUtil.h
+++ b/source/libs/planner/test/planTestUtil.h
@@ -45,6 +45,7 @@ extern void    setDumpModule(const char* pModule);
 extern void    setSkipSqlNum(const char* pNum);
 extern void    setLimitSqlNum(const char* pNum);
 extern void    setLogLevel(const char* pLogLevel);
+extern void    setQueryPolicy(const char* pQueryPolicy);
 extern int32_t getLogLevel();
 
 #endif  // PLAN_TEST_UTIL_H