diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 3249529b34580b519ef1c6dbe9bfe7e76e0cb7cc..0cfcff3a9869cecb318ca293fbb9e165924a1c07 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -301,7 +301,7 @@ static void tscAsyncResultCallback(SSchedMsg *pMsg) {
   taosReleaseRef(tscObjRef, pSql->self);
 }
 
-void tscAsyncResultOnError(SSqlObj* pSql) { 
+void tscAsyncResultOnError(SSqlObj* pSql) {
   SSchedMsg schedMsg = {0};
   schedMsg.fp = tscAsyncResultCallback;
   schedMsg.ahandle = (void *)pSql->self;
@@ -505,10 +505,7 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
   return;
 
   _error:
-  if (code != TSDB_CODE_SUCCESS) {
-    pSql->res.code = code;
-    tscAsyncResultOnError(pSql);
-  }
-
+  pRes->code = code;
+  tscAsyncResultOnError(pSql);
   taosReleaseRef(tscObjRef, pSql->self);
 }
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 0d3f9e1984a6c60f9496e834e571d41bc2ea4a6f..4448f0379b9308453d76a5396f78c3e779946b17 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -3280,7 +3280,8 @@ static int32_t extractColumnFilterInfo(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SC
     }
     
     if (pSchema->type == TSDB_DATA_TYPE_BOOL) {
-      if (pExpr->tokenId != TK_EQ && pExpr->tokenId != TK_NE) {
+      int32_t t = pExpr->tokenId;
+      if (t != TK_EQ && t != TK_NE && t != TK_NOTNULL && t != TK_ISNULL) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
       }
     }
@@ -3483,7 +3484,8 @@ static int32_t validateSQLExpr(SSqlCmd* pCmd, tSqlExpr* pExpr, SQueryInfo* pQuer
     }
 
     pList->ids[pList->num++] = index;
-  } else if (pExpr->tokenId == TK_FLOAT && (isnan(pExpr->value.dKey) || isinf(pExpr->value.dKey))) {
+  } else if ((pExpr->tokenId == TK_FLOAT && (isnan(pExpr->value.dKey) || isinf(pExpr->value.dKey))) ||
+             pExpr->tokenId == TK_NULL) {
     return TSDB_CODE_TSC_INVALID_SQL;
   } else if (pExpr->type == SQL_NODE_SQLFUNCTION) {
     if (*type == NON_ARITHMEIC_EXPR) {
@@ -3717,6 +3719,39 @@ static int32_t setExprToCond(tSqlExpr** parent, tSqlExpr* pExpr, const char* msg
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t validateNullExpr(tSqlExpr* pExpr, char* msgBuf) {
+  const char* msg = "only support is [not] null";
+
+  tSqlExpr* pRight = pExpr->pRight;
+  if (pRight->tokenId == TK_NULL && (!(pExpr->tokenId == TK_ISNULL || pExpr->tokenId == TK_NOTNULL))) {
+    return invalidSqlErrMsg(msgBuf, msg);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+// check for like expression
+static int32_t validateLikeExpr(tSqlExpr* pExpr, STableMeta* pTableMeta, int32_t index, char* msgBuf) {
+  const char* msg1 = "wildcard string should be less than 20 characters";
+  const char* msg2 = "illegal column name";
+
+  tSqlExpr* pLeft  = pExpr->pLeft;
+  tSqlExpr* pRight = pExpr->pRight;
+
+  if (pExpr->tokenId == TK_LIKE) {
+    if (pRight->value.nLen > TSDB_PATTERN_STRING_MAX_LEN) {
+      return invalidSqlErrMsg(msgBuf, msg1);
+    }
+
+    SSchema* pSchema = tscGetTableSchema(pTableMeta);
+    if ((!isTablenameToken(&pLeft->colInfo)) && !IS_VAR_DATA_TYPE(pSchema[index].type)) {
+      return invalidSqlErrMsg(msgBuf, msg2);
+    }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t handleExprInQueryCond(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, tSqlExpr** pExpr, SCondExpr* pCondExpr,
                                      int32_t* type, int32_t parentOptr) {
   const char* msg1 = "table query cannot use tags filter";
@@ -3726,8 +3761,7 @@ static int32_t handleExprInQueryCond(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, tSql
   const char* msg5 = "not support ordinary column join";
   const char* msg6 = "only one query condition on tbname allowed";
   const char* msg7 = "only in/like allowed in filter table name";
-  const char* msg8 = "wildcard string should be less than 20 characters";
-  
+
   tSqlExpr* pLeft  = (*pExpr)->pLeft;
   tSqlExpr* pRight = (*pExpr)->pRight;
 
@@ -3743,6 +3777,18 @@ static int32_t handleExprInQueryCond(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, tSql
   STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, index.tableIndex);
   STableMeta*     pTableMeta = pTableMetaInfo->pTableMeta;
 
+  // validate the null expression
+  int32_t code = validateNullExpr(*pExpr, tscGetErrorMsgPayload(pCmd));
+  if (code != TSDB_CODE_SUCCESS) {
+    return code;
+  }
+
+  // validate the like expression
+  code = validateLikeExpr(*pExpr, pTableMeta, index.columnIndex, tscGetErrorMsgPayload(pCmd));
+  if (code != TSDB_CODE_SUCCESS) {
+    return code;
+  }
+
   if (index.columnIndex == PRIMARYKEY_TIMESTAMP_COL_INDEX) {  // query on time range
     if (!validateJoinExprNode(pCmd, pQueryInfo, *pExpr, &index)) {
       return TSDB_CODE_TSC_INVALID_SQL;
@@ -3764,7 +3810,6 @@ static int32_t handleExprInQueryCond(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, tSql
       
       int16_t leftIdx = index.tableIndex;
 
-      SColumnIndex index = COLUMN_INDEX_INITIALIZER;
       if (getColumnIndexByName(pCmd, &pRight->colInfo, pQueryInfo, &index) != TSDB_CODE_SUCCESS) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
       }
@@ -3811,20 +3856,6 @@ static int32_t handleExprInQueryCond(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, tSql
       return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
     }
 
-    // check for like expression
-    if ((*pExpr)->tokenId == TK_LIKE) {
-      if (pRight->value.nLen > TSDB_PATTERN_STRING_MAX_LEN) {
-        return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg8);
-      }
-
-      SSchema* pSchema = tscGetTableSchema(pTableMetaInfo->pTableMeta);
-
-      if ((!isTablenameToken(&pLeft->colInfo)) && pSchema[index.columnIndex].type != TSDB_DATA_TYPE_BINARY &&
-          pSchema[index.columnIndex].type != TSDB_DATA_TYPE_NCHAR) {
-        return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
-      }
-    }
-
     // in case of in operator, keep it in a seprate attribute
     if (index.columnIndex == TSDB_TBNAME_COLUMN_INDEX) {
       if (!validTableNameOptr(*pExpr)) {
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 560356c5e819cd3933cba1f24cc6f22f12b4ebcf..8e917f571f203e9990a5a193b0ad75f940f09b3a 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -309,7 +309,7 @@ void tscSetResRawPtr(SSqlRes* pRes, SQueryInfo* pQueryInfo) {
 
   int32_t offset = 0;
 
-  for (int32_t i = 0; i < pRes->numOfCols; ++i) {
+  for (int32_t i = 0; i < pQueryInfo->fieldsInfo.numOfOutput; ++i) {
     SInternalField* pInfo = (SInternalField*)TARRAY_GET_ELEM(pQueryInfo->fieldsInfo.internalField, i);
 
     pRes->urow[i] = pRes->data + offset * pRes->numOfRows;
diff --git a/src/dnode/src/dnodeMain.c b/src/dnode/src/dnodeMain.c
index ea0ef4655d4cc98949012f125d9805ac20642d1a..410e6bb1888a11858e5d091f3f82c54df4dc2022 100644
--- a/src/dnode/src/dnodeMain.c
+++ b/src/dnode/src/dnodeMain.c
@@ -238,9 +238,11 @@ static int32_t dnodeInitStorage() {
   }
 
   TDIR *tdir = tfsOpendir("vnode_bak/.staging");
-  if (tfsReaddir(tdir) != NULL) {
+  bool stagingNotEmpty = tfsReaddir(tdir) != NULL;
+  tfsClosedir(tdir);
+
+  if (stagingNotEmpty) {
     dError("vnode_bak/.staging dir not empty, fix it first.");
-    tfsClosedir(tdir);
     return -1;
   }
 
diff --git a/src/dnode/src/dnodeVWrite.c b/src/dnode/src/dnodeVWrite.c
index 87b31e4604882d750e4a43fde4a6d818cc862e98..84fd260d91420ea19a796f10fa96d1fbbb1ac648 100644
--- a/src/dnode/src/dnodeVWrite.c
+++ b/src/dnode/src/dnodeVWrite.c
@@ -205,7 +205,7 @@ static void *dnodeProcessVWriteQueue(void *wparam) {
              pWrite->rpcMsg.ahandle, taosMsg[pWrite->pHead.msgType], qtypeStr[qtype], pWrite->pHead.version);
 
       pWrite->code = vnodeProcessWrite(pVnode, &pWrite->pHead, qtype, pWrite);
-      if (pWrite->code <= 0) pWrite->processedCount = 1;
+      if (pWrite->code <= 0) atomic_add_fetch_32(&pWrite->processedCount, 1);
       if (pWrite->code > 0) pWrite->code = 0;
       if (pWrite->code == 0 && pWrite->pHead.msgType != TSDB_MSG_TYPE_SUBMIT) forceFsync = true;
 
diff --git a/src/inc/ttokendef.h b/src/inc/ttokendef.h
index 7acfb569f31d0488b0643b2a34c1543ae44bf8c5..5f47d9896fa50042ac6b090f4ba53103bb620648 100644
--- a/src/inc/ttokendef.h
+++ b/src/inc/ttokendef.h
@@ -209,6 +209,7 @@
 
 
 
+
 #define TK_SPACE                          300
 #define TK_COMMENT                        301
 #define TK_ILLEGAL                        302
diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index d76185ca43c233c9ac0d4b6e46dc34f74a267670..df1c7bee269a0e663e7a07ebb417f4a1d254859d 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -4455,7 +4455,7 @@ static int generateDataTail(char *tableName, int32_t tableSeq,
         break;
       }
 
-      buffer += sprintf(buffer, " %s", data);
+      buffer += snprintf(buffer, retLen + 1, "%s", data);
       k++;
       len += retLen;
       remainderBufLen -= retLen;
diff --git a/src/query/inc/sql.y b/src/query/inc/sql.y
index f76c534da1fc4eba9e1e0e69d113b143fd7a2774..f9a4f1b51d34b17fddeb07946361f328d4702a1d 100644
--- a/src/query/inc/sql.y
+++ b/src/query/inc/sql.y
@@ -675,6 +675,7 @@ expr(A) ::= STRING(X).           { A = tSqlExprCreateIdValue(&X, TK_STRING);}
 expr(A) ::= NOW(X).              { A = tSqlExprCreateIdValue(&X, TK_NOW); }
 expr(A) ::= VARIABLE(X).         { A = tSqlExprCreateIdValue(&X, TK_VARIABLE);}
 expr(A) ::= BOOL(X).             { A = tSqlExprCreateIdValue(&X, TK_BOOL);}
+expr(A) ::= NULL(X).             { A = tSqlExprCreateIdValue(&X, TK_NULL);}
 
 // ordinary functions: min(x), max(x), top(k, 20)
 expr(A) ::= ID(X) LP exprlist(Y) RP(E). { A = tSqlExprCreateFunction(Y, &X, &E, X.type); }
diff --git a/src/query/src/qSqlParser.c b/src/query/src/qSqlParser.c
index 25fa8465b1cd62590a6034fe94d4abb1fa9d108b..b75032967abde595bccea6d6577465b0870791c2 100644
--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -127,7 +127,12 @@ tSqlExpr *tSqlExprCreateIdValue(SStrToken *pToken, int32_t optrType) {
     pSqlExpr->token = *pToken;
   }
 
-  if (optrType == TK_INTEGER || optrType == TK_STRING || optrType == TK_FLOAT || optrType == TK_BOOL) {
+  if (optrType == TK_NULL) {
+    pToken->type = TSDB_DATA_TYPE_NULL;
+    tVariantCreate(&pSqlExpr->value, pToken);
+    pSqlExpr->tokenId = optrType;
+    pSqlExpr->type    = SQL_NODE_VALUE;
+  } else if (optrType == TK_INTEGER || optrType == TK_STRING || optrType == TK_FLOAT || optrType == TK_BOOL) {
     toTSDBType(pToken->type);
 
     tVariantCreate(&pSqlExpr->value, pToken);
@@ -427,7 +432,11 @@ void tSqlExprCompact(tSqlExpr** pExpr) {
 
 bool tSqlExprIsLeaf(tSqlExpr* pExpr) {
   return (pExpr->pRight == NULL && pExpr->pLeft == NULL) &&
-         (pExpr->tokenId == 0 || pExpr->tokenId == TK_ID || (pExpr->tokenId >= TK_BOOL && pExpr->tokenId <= TK_NCHAR) || pExpr->tokenId == TK_SET);
+         (pExpr->tokenId == 0 ||
+         (pExpr->tokenId == TK_ID) ||
+         (pExpr->tokenId >= TK_BOOL && pExpr->tokenId <= TK_NCHAR) ||
+         (pExpr->tokenId == TK_NULL) ||
+         (pExpr->tokenId == TK_SET));
 }
 
 bool tSqlExprIsParentOfLeaf(tSqlExpr* pExpr) {
diff --git a/src/query/src/queryMain.c b/src/query/src/queryMain.c
index 9d2fb70d9620f5f219b4b7206af18fe1ed9466dc..2ff0c9676e72074874c977899599c6666715c2ec 100644
--- a/src/query/src/queryMain.c
+++ b/src/query/src/queryMain.c
@@ -372,6 +372,7 @@ int32_t qKillQuery(qinfo_t qinfo) {
     return TSDB_CODE_QRY_INVALID_QHANDLE;
   }
 
+  qDebug("QInfo:%"PRIu64" query killed", pQInfo->qId);
   setQueryKilled(pQInfo);
 
   // Wait for the query executing thread being stopped/
diff --git a/src/query/src/sql.c b/src/query/src/sql.c
index 0e1916bc8bba148f63e96831fd0aa9f854aa9170..3c22bd85cc31b8bb6f8f39585b41f0fed1300b16 100644
--- a/src/query/src/sql.c
+++ b/src/query/src/sql.c
@@ -138,17 +138,17 @@ typedef union {
 #define ParseCTX_STORE
 #define YYFALLBACK 1
 #define YYNSTATE             315
-#define YYNRULE              266
-#define YYNRULE_WITH_ACTION  266
+#define YYNRULE              267
+#define YYNRULE_WITH_ACTION  267
 #define YYNTOKEN             187
 #define YY_MAX_SHIFT         314
-#define YY_MIN_SHIFTREDUCE   505
-#define YY_MAX_SHIFTREDUCE   770
-#define YY_ERROR_ACTION      771
-#define YY_ACCEPT_ACTION     772
-#define YY_NO_ACTION         773
-#define YY_MIN_REDUCE        774
-#define YY_MAX_REDUCE        1039
+#define YY_MIN_SHIFTREDUCE   506
+#define YY_MAX_SHIFTREDUCE   772
+#define YY_ERROR_ACTION      773
+#define YY_ACCEPT_ACTION     774
+#define YY_NO_ACTION         775
+#define YY_MIN_REDUCE        776
+#define YY_MAX_REDUCE        1042
 /************* End control #defines *******************************************/
 #define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])))
 
@@ -215,147 +215,148 @@ typedef union {
 **  yy_default[]       Default action for each state.
 **
 *********** Begin parsing tables **********************************************/
-#define YY_ACTTAB_COUNT (679)
+#define YY_ACTTAB_COUNT (681)
 static const YYACTIONTYPE yy_action[] = {
- /*     0 */   133,  552,  202,  312,  206,  140,  941,  226,  140,  553,
- /*    10 */   772,  314,   17,   47,   48,  140,   51,   52,   30,  181,
- /*    20 */   214,   41,  181,   50,  262,   55,   53,   57,   54, 1020,
- /*    30 */   920,  209, 1021,   46,   45,  179,  181,   44,   43,   42,
- /*    40 */    47,   48,  918,   51,   52,  208, 1021,  214,   41,  552,
- /*    50 */    50,  262,   55,   53,   57,   54,  932,  553,  185,  203,
- /*    60 */    46,   45,  917,  247,   44,   43,   42,   48,  938,   51,
- /*    70 */    52,  242,  972,  214,   41,   79,   50,  262,   55,   53,
- /*    80 */    57,   54,  973,  631,  257,   30,   46,   45,  278,  225,
- /*    90 */    44,   43,   42,  506,  507,  508,  509,  510,  511,  512,
- /*   100 */   513,  514,  515,  516,  517,  518,  313,  552,   85,  231,
- /*   110 */    70,  288,  287,   47,   48,  553,   51,   52,  298,  219,
- /*   120 */   214,   41,  552,   50,  262,   55,   53,   57,   54,  916,
- /*   130 */   553,  105,  717,   46,   45, 1017,  298,   44,   43,   42,
- /*   140 */    47,   49,  908,   51,   52,  920,  140,  214,   41,  234,
- /*   150 */    50,  262,   55,   53,   57,   54, 1016,  238,  237,  227,
+ /*     0 */   133,  553,  202,  312,  206,  140,  943,   17,   85,  554,
+ /*    10 */   774,  314,  179,   47,   48,  140,   51,   52,   30,  181,
+ /*    20 */   214,   41,  181,   50,  262,   55,   53,   57,   54, 1023,
+ /*    30 */   922,  209, 1024,   46,   45,  185,  181,   44,   43,   42,
+ /*    40 */    47,   48,  910,   51,   52,  208, 1024,  214,   41,  553,
+ /*    50 */    50,  262,   55,   53,   57,   54,  934,  554, 1020,  203,
+ /*    60 */    46,   45,  919,  247,   44,   43,   42,   48,  940,   51,
+ /*    70 */    52,  242,  974,  214,   41,  553,   50,  262,   55,   53,
+ /*    80 */    57,   54,  975,  554,  257,  278,   46,   45,  298,  225,
+ /*    90 */    44,   43,   42,  507,  508,  509,  510,  511,  512,  513,
+ /*   100 */   514,  515,  516,  517,  518,  519,  313,  632, 1019,  231,
+ /*   110 */    70,  553,   30,   47,   48, 1018,   51,   52,  821,  554,
+ /*   120 */   214,   41,  166,   50,  262,   55,   53,   57,   54,   44,
+ /*   130 */    43,   42,  718,   46,   45,  288,  287,   44,   43,   42,
+ /*   140 */    47,   49,  830,   51,   52,  198,  166,  214,   41,  234,
+ /*   150 */    50,  262,   55,   53,   57,   54,  918,  238,  237,  227,
  /*   160 */    46,   45,  285,  284,   44,   43,   42,   23,  276,  307,
  /*   170 */   306,  275,  274,  273,  305,  272,  304,  303,  302,  271,
- /*   180 */   301,  300,  880,   30,  868,  869,  870,  871,  872,  873,
- /*   190 */   874,  875,  876,  877,  878,  879,  881,  882,   51,   52,
- /*   200 */    18,  670,  214,   41,  906,   50,  262,   55,   53,   57,
- /*   210 */    54,  259,  221,   78,   30,   46,   45,  190,   30,   44,
- /*   220 */    43,   42,   12,  191,  217,   25,   84,  917,   81,  118,
- /*   230 */   117,  189,   74,  213,  730,  308, 1015,  721,  920,  724,
- /*   240 */    36,  727,  888,  213,  730,  886,  887,  721,  932,  724,
- /*   250 */   889,  727,  891,  892,  890,  218,  893,  894,  917,  281,
- /*   260 */    74,  920,  917,  204,  677,  210,  211,   69,   36,  261,
- /*   270 */    30,   23,  245,  307,  306,  210,  211,  719,  305,  674,
- /*   280 */   304,  303,  302,  278,  301,  300,   30,   44,   43,   42,
- /*   290 */   241,  198,   68,   30,   55,   53,   57,   54,  197,  905,
- /*   300 */   819,  223,   46,   45,  166,  914,   44,   43,   42,  103,
- /*   310 */   108,  282,  263,  720,  917,   97,  107,  113,  116,  106,
- /*   320 */    28,  655,   80,  268,  652,  110,  653,  286,  654,   67,
- /*   330 */   917,  630,    5,  156,  290,   71,   56,  917,   33,  155,
- /*   340 */    92,   87,   91,    1,  154,   82,   56,  220,  199,  729,
- /*   350 */    46,   45,  228,  229,   44,   43,   42, 1031,  828,  729,
- /*   360 */   174,  170,  166,    3,  167,  728,  172,  169,  121,  120,
- /*   370 */   119,  224,  698,  699,  280,  728,  903,  904,   29,  907,
- /*   380 */   311,  310,  126,  820,  667,  243,  683,  166,  689,   31,
- /*   390 */   135,   24,   60,  690,  750,  731,  212,   20,   19,   19,
- /*   400 */   723,  722,  726,  725,   61,   64,  641,  265,  733,  643,
- /*   410 */    31,   31,  267,   60,  642,  659,   83,  660,   60,  183,
- /*   420 */    96,   95,   14,   13,  184,   65,   62,  657,  186,  658,
- /*   430 */   656,  102,  101,  115,  114,  131,  129,   16,   15,  983,
- /*   440 */     6,  180,  187,  188,  194,  195,  193,  178,  192,  182,
- /*   450 */   919,  239,  982,  215,  979,  978,  216,  289,  132,   39,
- /*   460 */   965,  940,  948,  950,  134,  964,  933,  138,  246,  151,
- /*   470 */   915,  130,  682,  150,  248,  913,  152,  153,  205,  149,
- /*   480 */   254,  831,  270,  256,   37,  260,  930,   66,  143,  141,
- /*   490 */   176,   63,  250,   34,  255,  279,  827,   58, 1036,  142,
- /*   500 */    93, 1035, 1033,  157,  283, 1030,  258,  144,   99,  145,
- /*   510 */  1029, 1027,  158,  849,   35,   32,   38,  177,  816,  109,
- /*   520 */   814,  111,  112,  812,  811,  230,  252,  168,  809,  808,
- /*   530 */   807,  806,  805,  804,  171,  173,  801,  799,  797,  795,
- /*   540 */   793,  175,  249,  244,   72,   75,   40,  251,  299,  966,
- /*   550 */   104,  291,  292,  293,  294,  295,  296,  297,  200,  222,
- /*   560 */   269,  309,  770,  232,  233,  769,  201,  196,   88,  236,
- /*   570 */    89,  235,  768,  756,  755,  810,  240,  245,  264,  122,
- /*   580 */     8,  123,  161,  160,  850,  159,  162,  163,  165,  164,
- /*   590 */   803,    2,  124,  802,  794,  884,  125,  662,    4,   76,
- /*   600 */    73,  684,  136,  137,  148,  146,  147,  896,  687,   77,
- /*   610 */   207,  253,    9,  691,  139,   26,   10,  732,   27,    7,
- /*   620 */    11,   21,  734,   22,   86,  266,  594,  590,   84,  588,
- /*   630 */   587,  586,  583,  556,  277,   31,   94,   90,   98,   59,
- /*   640 */   633,  632,  629,  100,  578,  576,  568,  574,  570,  572,
- /*   650 */   566,  564,  597,  596,  595,  593,  592,  591,  589,  585,
- /*   660 */   584,   60,  554,  522,  520,  774,  773,  773,  773,  773,
- /*   670 */   773,  773,  773,  773,  773,  773,  773,  127,  128,
+ /*   180 */   301,  300,  882,  140,  870,  871,  872,  873,  874,  875,
+ /*   190 */   876,  877,  878,  879,  880,  881,  883,  884,   51,   52,
+ /*   200 */   822,  219,  214,   41,  166,   50,  262,   55,   53,   57,
+ /*   210 */    54,  223,   18,   82,   25,   46,   45,  199,  226,   44,
+ /*   220 */    43,   42,  213,  731,  934,  221,  722,  922,  725,  190,
+ /*   230 */   728,  183,  213,  731,  140,  191,  722,  908,  725,  204,
+ /*   240 */   728,  118,  117,  189,  905,  906,   29,  909,  259,   74,
+ /*   250 */    78,  922,   30,  920,  210,  211,  308,   36,  261,   69,
+ /*   260 */    23,  916,  307,  306,  210,  211,   61,  305,   30,  304,
+ /*   270 */   303,  302,   74,  301,  300,  890,    3,  167,  888,  889,
+ /*   280 */    36,  224,  922,  891,  280,  893,  894,  892,   62,  895,
+ /*   290 */   896,  907,  656,  217,   12,  653,  919,  654,   84,  655,
+ /*   300 */    81,   79,  241,  220,   68,   55,   53,   57,   54,  218,
+ /*   310 */   197,  184,  919,   46,   45,   30,  278,   44,   43,   42,
+ /*   320 */    80,  103,  108,  228,  229,   56,  263,   97,  107,  113,
+ /*   330 */   116,  106,  732,   71,  671,   56,  186,  110,  730,   30,
+ /*   340 */   180,   30,  732,    5,  156,   30,  699,  700,  730,   33,
+ /*   350 */   155,   92,   87,   91,  729,  668,  281,  678,  105,  919,
+ /*   360 */   174,  170,   24,  298,  729,  245,  172,  169,  121,  120,
+ /*   370 */   119,   46,   45,    1,  154,   44,   43,   42,  720,  724,
+ /*   380 */   282,  727,  286,  919,  243,  919,  290,  187,   31,  919,
+ /*   390 */   311,  310,  126,  684,  212,   64,  690,  135,  691,  752,
+ /*   400 */    60,  657,   20,   19,  733,  723,  642,  726,   19,  265,
+ /*   410 */    31,  188,  675,   31,  721,   65,   96,   95,  194,  644,
+ /*   420 */   267,  643,  735,   60,   83,   60,   28,   14,   13,  268,
+ /*   430 */   102,  101,   67,  660,  631,  661,  195,  658,    6,  659,
+ /*   440 */    16,   15,  115,  114,  131,  129,  193,  178,  192,  182,
+ /*   450 */  1034,  921,  985,  984,  215,  981,  980,  239,  216,  289,
+ /*   460 */   132,  942,   39,  950,  952,  134,  138,  935,  246,  967,
+ /*   470 */   130,  966,  917,  150,  151,  915,  299,  152,  683,  248,
+ /*   480 */   886,  104,  291,  149,  147,  153,  833,  142,  932,  141,
+ /*   490 */   270,   66,  205,   37,  250,  176,   34,  279,  829, 1039,
+ /*   500 */    93,  255, 1038, 1036,  143,   63,   58,  157,  283, 1033,
+ /*   510 */    99, 1032,  260, 1030,  158,  851,  256,   35,  258,   32,
+ /*   520 */    38,  177,  818,  109,  254,  816,  111,  112,  252,  814,
+ /*   530 */   813,  230,  168,  811,  810,  809,  808,  807,  806,  171,
+ /*   540 */   173,  803,  801,  799,  797,  795,  175,  249,  244,   72,
+ /*   550 */    75,  251,   40,  968,  292,  293,  294,  295,  296,  200,
+ /*   560 */   297,  222,  269,  309,  772,  233,  232,  771,   88,  201,
+ /*   570 */   235,  196,   89,  236,  770,  758,  757,  240,  245,    8,
+ /*   580 */   264,   73,  663,  136,  812,  161,  165,  685,  852,  159,
+ /*   590 */   160,  162,  164,  163,  122,  123,  805,   76,  124,  804,
+ /*   600 */     4,  688,  137,  125,  796,   77,  146,  144,  148,  145,
+ /*   610 */   207,    2,  898,  253,   26,  692,  139,    9,   10,  734,
+ /*   620 */    27,    7,   11,   21,  736,   22,   86,  266,  595,  591,
+ /*   630 */    84,  589,  588,  587,  584,  557,  277,   90,   94,   31,
+ /*   640 */   634,   59,  633,  630,  579,   98,  100,  577,  569,  575,
+ /*   650 */   571,  573,  567,  565,  598,  597,  596,  594,  593,  592,
+ /*   660 */   590,  586,  585,   60,  555,  523,  521,  776,  775,  775,
+ /*   670 */   775,  775,  775,  775,  775,  775,  775,  775,  775,  127,
+ /*   680 */   128,
 };
 static const YYCODETYPE yy_lookahead[] = {
- /*     0 */   190,    1,  189,  190,  209,  190,  190,  190,  190,    9,
+ /*     0 */   190,    1,  189,  190,  209,  190,  190,  251,  196,    9,
  /*    10 */   187,  188,  251,   13,   14,  190,   16,   17,  190,  251,
  /*    20 */    20,   21,  251,   23,   24,   25,   26,   27,   28,  261,
  /*    30 */   235,  260,  261,   33,   34,  251,  251,   37,   38,   39,
- /*    40 */    13,   14,  225,   16,   17,  260,  261,   20,   21,    1,
+ /*    40 */    13,   14,  230,   16,   17,  260,  261,   20,   21,    1,
  /*    50 */    23,   24,   25,   26,   27,   28,  233,    9,  251,  231,
  /*    60 */    33,   34,  234,  253,   37,   38,   39,   14,  252,   16,
- /*    70 */    17,  248,  257,   20,   21,  257,   23,   24,   25,   26,
- /*    80 */    27,   28,  257,    5,  259,  190,   33,   34,   79,   67,
+ /*    70 */    17,  248,  257,   20,   21,    1,   23,   24,   25,   26,
+ /*    80 */    27,   28,  257,    9,  259,   79,   33,   34,   81,   67,
  /*    90 */    37,   38,   39,   45,   46,   47,   48,   49,   50,   51,
- /*   100 */    52,   53,   54,   55,   56,   57,   58,    1,  196,   61,
- /*   110 */   110,   33,   34,   13,   14,    9,   16,   17,   81,  209,
- /*   120 */    20,   21,    1,   23,   24,   25,   26,   27,   28,  234,
- /*   130 */     9,   76,  105,   33,   34,  251,   81,   37,   38,   39,
- /*   140 */    13,   14,  230,   16,   17,  235,  190,   20,   21,  135,
- /*   150 */    23,   24,   25,   26,   27,   28,  251,  143,  144,  137,
+ /*   100 */    52,   53,   54,   55,   56,   57,   58,    5,  251,   61,
+ /*   110 */   110,    1,  190,   13,   14,  251,   16,   17,  195,    9,
+ /*   120 */    20,   21,  199,   23,   24,   25,   26,   27,   28,   37,
+ /*   130 */    38,   39,  105,   33,   34,   33,   34,   37,   38,   39,
+ /*   140 */    13,   14,  195,   16,   17,  251,  199,   20,   21,  135,
+ /*   150 */    23,   24,   25,   26,   27,   28,  234,  143,  144,  137,
  /*   160 */    33,   34,  140,  141,   37,   38,   39,   88,   89,   90,
  /*   170 */    91,   92,   93,   94,   95,   96,   97,   98,   99,  100,
  /*   180 */   101,  102,  208,  190,  210,  211,  212,  213,  214,  215,
  /*   190 */   216,  217,  218,  219,  220,  221,  222,  223,   16,   17,
- /*   200 */    44,   37,   20,   21,    0,   23,   24,   25,   26,   27,
- /*   210 */    28,  255,  209,  257,  190,   33,   34,   61,  190,   37,
- /*   220 */    38,   39,  104,   67,  231,  104,  108,  234,  110,   73,
- /*   230 */    74,   75,  104,    1,    2,  209,  251,    5,  235,    7,
- /*   240 */   112,    9,  208,    1,    2,  211,  212,    5,  233,    7,
- /*   250 */   216,    9,  218,  219,  220,  231,  222,  223,  234,  231,
- /*   260 */   104,  235,  234,  248,  105,   33,   34,  196,  112,   37,
- /*   270 */   190,   88,  113,   90,   91,   33,   34,    1,   95,  115,
- /*   280 */    97,   98,   99,   79,  101,  102,  190,   37,   38,   39,
- /*   290 */   134,  251,  136,  190,   25,   26,   27,   28,  142,  228,
- /*   300 */   195,   67,   33,   34,  199,  190,   37,   38,   39,   62,
- /*   310 */    63,  231,   15,   37,  234,   68,   69,   70,   71,   72,
- /*   320 */   104,    2,  236,  107,    5,   78,    7,  231,    9,  104,
- /*   330 */   234,  106,   62,   63,  231,  249,  104,  234,   68,   69,
- /*   340 */    70,   71,   72,  197,  198,  196,  104,  232,  251,  117,
- /*   350 */    33,   34,   33,   34,   37,   38,   39,  235,  195,  117,
- /*   360 */    62,   63,  199,  193,  194,  133,   68,   69,   70,   71,
- /*   370 */    72,  137,  124,  125,  140,  133,  227,  228,  229,  230,
- /*   380 */    64,   65,   66,  195,  109,  105,  105,  199,  105,  109,
- /*   390 */   109,  116,  109,  105,  105,  105,   60,  109,  109,  109,
- /*   400 */     5,    5,    7,    7,  109,  109,  105,  105,  111,  105,
- /*   410 */   109,  109,  105,  109,  105,    5,  109,    7,  109,  251,
- /*   420 */   138,  139,  138,  139,  251,  129,  131,    5,  251,    7,
- /*   430 */   111,  138,  139,   76,   77,   62,   63,  138,  139,  226,
- /*   440 */   104,  251,  251,  251,  251,  251,  251,  251,  251,  251,
- /*   450 */   235,  190,  226,  226,  226,  226,  226,  226,  190,  250,
- /*   460 */   258,  190,  190,  190,  190,  258,  233,  190,  233,  190,
- /*   470 */   233,   60,  117,  237,  254,  190,  190,  190,  254,  238,
- /*   480 */   120,  190,  190,  121,  190,  122,  247,  128,  244,  246,
- /*   490 */   190,  130,  254,  190,  254,  190,  190,  127,  190,  245,
- /*   500 */   190,  190,  190,  190,  190,  190,  126,  243,  190,  242,
- /*   510 */   190,  190,  190,  190,  190,  190,  190,  190,  190,  190,
- /*   520 */   190,  190,  190,  190,  190,  190,  119,  190,  190,  190,
+ /*   200 */   195,  209,   20,   21,  199,   23,   24,   25,   26,   27,
+ /*   210 */    28,   67,   44,  196,  104,   33,   34,  251,  190,   37,
+ /*   220 */    38,   39,    1,    2,  233,  209,    5,  235,    7,   61,
+ /*   230 */     9,  251,    1,    2,  190,   67,    5,    0,    7,  248,
+ /*   240 */     9,   73,   74,   75,  227,  228,  229,  230,  255,  104,
+ /*   250 */   257,  235,  190,  225,   33,   34,  209,  112,   37,  196,
+ /*   260 */    88,  190,   90,   91,   33,   34,  109,   95,  190,   97,
+ /*   270 */    98,   99,  104,  101,  102,  208,  193,  194,  211,  212,
+ /*   280 */   112,  137,  235,  216,  140,  218,  219,  220,  131,  222,
+ /*   290 */   223,  228,    2,  231,  104,    5,  234,    7,  108,    9,
+ /*   300 */   110,  257,  134,  232,  136,   25,   26,   27,   28,  231,
+ /*   310 */   142,  251,  234,   33,   34,  190,   79,   37,   38,   39,
+ /*   320 */   236,   62,   63,   33,   34,  104,   15,   68,   69,   70,
+ /*   330 */    71,   72,  111,  249,   37,  104,  251,   78,  117,  190,
+ /*   340 */   251,  190,  111,   62,   63,  190,  124,  125,  117,   68,
+ /*   350 */    69,   70,   71,   72,  133,  109,  231,  105,   76,  234,
+ /*   360 */    62,   63,  116,   81,  133,  113,   68,   69,   70,   71,
+ /*   370 */    72,   33,   34,  197,  198,   37,   38,   39,    1,    5,
+ /*   380 */   231,    7,  231,  234,  105,  234,  231,  251,  109,  234,
+ /*   390 */    64,   65,   66,  105,   60,  109,  105,  109,  105,  105,
+ /*   400 */   109,  111,  109,  109,  105,    5,  105,    7,  109,  105,
+ /*   410 */   109,  251,  115,  109,   37,  129,  138,  139,  251,  105,
+ /*   420 */   105,  105,  111,  109,  109,  109,  104,  138,  139,  107,
+ /*   430 */   138,  139,  104,    5,  106,    7,  251,    5,  104,    7,
+ /*   440 */   138,  139,   76,   77,   62,   63,  251,  251,  251,  251,
+ /*   450 */   235,  235,  226,  226,  226,  226,  226,  190,  226,  226,
+ /*   460 */   190,  190,  250,  190,  190,  190,  190,  233,  233,  258,
+ /*   470 */    60,  258,  233,  237,  190,  190,  103,  190,  117,  254,
+ /*   480 */   224,   87,   86,  238,  240,  190,  190,  245,  247,  246,
+ /*   490 */   190,  128,  254,  190,  254,  190,  190,  190,  190,  190,
+ /*   500 */   190,  254,  190,  190,  244,  130,  127,  190,  190,  190,
+ /*   510 */   190,  190,  122,  190,  190,  190,  121,  190,  126,  190,
+ /*   520 */   190,  190,  190,  190,  120,  190,  190,  190,  119,  190,
  /*   530 */   190,  190,  190,  190,  190,  190,  190,  190,  190,  190,
- /*   540 */   190,  190,  118,  191,  191,  191,  132,  191,  103,  191,
- /*   550 */    87,   86,   50,   83,   85,   54,   84,   82,  191,  191,
- /*   560 */   191,   79,    5,  145,    5,    5,  191,  191,  196,    5,
- /*   570 */   196,  145,    5,   90,   89,  191,  135,  113,  107,  192,
- /*   580 */   104,  192,  201,  205,  207,  206,  204,  202,  200,  203,
- /*   590 */   191,  197,  192,  191,  191,  224,  192,  105,  193,  109,
- /*   600 */   114,  105,  104,  109,  239,  241,  240,  224,  105,  104,
- /*   610 */     1,  104,  123,  105,  104,  109,  123,  105,  109,  104,
- /*   620 */   104,  104,  111,  104,   76,  107,    9,    5,  108,    5,
- /*   630 */     5,    5,    5,   80,   15,  109,  139,   76,  139,   16,
- /*   640 */     5,    5,  105,  139,    5,    5,    5,    5,    5,    5,
+ /*   540 */   190,  190,  190,  190,  190,  190,  190,  118,  191,  191,
+ /*   550 */   191,  191,  132,  191,   50,   83,   85,   54,   84,  191,
+ /*   560 */    82,  191,  191,   79,    5,    5,  145,    5,  196,  191,
+ /*   570 */   145,  191,  196,    5,    5,   90,   89,  135,  113,  104,
+ /*   580 */   107,  114,  105,  104,  191,  201,  200,  105,  207,  206,
+ /*   590 */   205,  204,  203,  202,  192,  192,  191,  109,  192,  191,
+ /*   600 */   193,  105,  109,  192,  191,  104,  241,  243,  239,  242,
+ /*   610 */     1,  197,  224,  104,  109,  105,  104,  123,  123,  105,
+ /*   620 */   109,  104,  104,  104,  111,  104,   76,  107,    9,    5,
+ /*   630 */   108,    5,    5,    5,    5,   80,   15,   76,  139,  109,
+ /*   640 */     5,   16,    5,  105,    5,  139,  139,    5,    5,    5,
  /*   650 */     5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
- /*   660 */     5,  109,   80,   60,   59,    0,  262,  262,  262,  262,
- /*   670 */   262,  262,  262,  262,  262,  262,  262,   21,   21,  262,
- /*   680 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
+ /*   660 */     5,    5,    5,  109,   80,   60,   59,    0,  262,  262,
+ /*   670 */   262,  262,  262,  262,  262,  262,  262,  262,  262,   21,
+ /*   680 */    21,  262,  262,  262,  262,  262,  262,  262,  262,  262,
  /*   690 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
  /*   700 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
  /*   710 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
@@ -373,101 +374,101 @@ static const YYCODETYPE yy_lookahead[] = {
  /*   830 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
  /*   840 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
  /*   850 */   262,  262,  262,  262,  262,  262,  262,  262,  262,  262,
- /*   860 */   262,  262,  262,  262,  262,  262,
+ /*   860 */   262,  262,  262,  262,  262,  262,  262,  262,
 };
 #define YY_SHIFT_COUNT    (314)
 #define YY_SHIFT_MIN      (0)
-#define YY_SHIFT_MAX      (665)
+#define YY_SHIFT_MAX      (667)
 static const unsigned short int yy_shift_ofst[] = {
- /*     0 */   156,   79,   79,  183,  183,    9,  232,  242,  106,  106,
- /*    10 */   106,  106,  106,  106,  106,  106,  106,    0,   48,  242,
- /*    20 */   319,  319,  319,  319,  121,  128,  106,  106,  106,  204,
- /*    30 */   106,  106,   55,    9,   37,   37,  679,  679,  679,  242,
- /*    40 */   242,  242,  242,  242,  242,  242,  242,  242,  242,  242,
- /*    50 */   242,  242,  242,  242,  242,  242,  242,  242,  242,  319,
- /*    60 */   319,   78,   78,   78,   78,   78,   78,   78,  106,  106,
- /*    70 */   106,  164,  106,  128,  128,  106,  106,  106,  248,  248,
- /*    80 */   275,  128,  106,  106,  106,  106,  106,  106,  106,  106,
- /*    90 */   106,  106,  106,  106,  106,  106,  106,  106,  106,  106,
- /*   100 */   106,  106,  106,  106,  106,  106,  106,  106,  106,  106,
- /*   110 */   106,  106,  106,  106,  106,  106,  106,  106,  106,  106,
- /*   120 */   106,  106,  106,  106,  106,  106,  106,  106,  106,  106,
- /*   130 */   106,  106,  411,  411,  411,  355,  355,  355,  411,  355,
- /*   140 */   411,  359,  361,  370,  363,  380,  362,  360,  407,  424,
- /*   150 */   414,  411,  411,  411,  445,    9,    9,  411,  411,  463,
- /*   160 */   465,  502,  470,  469,  501,  472,  475,  445,  411,  482,
- /*   170 */   482,  411,  482,  411,  482,  411,  679,  679,   27,  100,
- /*   180 */   127,  100,  100,   53,  182,  269,  269,  269,  269,  247,
- /*   190 */   270,  298,  317,  317,  317,  317,   22,   14,  250,  250,
- /*   200 */   118,  234,  316,  280,  159,  281,  283,  288,  289,  290,
- /*   210 */   395,  396,  276,  336,  297,  295,  296,  301,  302,  304,
- /*   220 */   307,  309,  216,  282,  284,  293,  225,  299,  410,  422,
- /*   230 */   357,  373,  557,  418,  559,  560,  426,  564,  567,  483,
- /*   240 */   485,  441,  464,  471,  476,  486,  492,  490,  496,  498,
- /*   250 */   503,  494,  505,  609,  507,  508,  510,  506,  489,  509,
- /*   260 */   493,  512,  515,  511,  516,  471,  517,  518,  519,  520,
- /*   270 */   548,  617,  622,  624,  625,  626,  627,  553,  619,  561,
- /*   280 */   497,  526,  526,  623,  499,  504,  526,  635,  636,  537,
- /*   290 */   526,  639,  640,  641,  642,  643,  644,  645,  646,  647,
- /*   300 */   648,  649,  650,  651,  652,  653,  654,  655,  552,  582,
- /*   310 */   656,  657,  603,  605,  665,
+ /*     0 */   168,   79,   79,  172,  172,    6,  221,  231,   74,   74,
+ /*    10 */    74,   74,   74,   74,   74,   74,   74,    0,   48,  231,
+ /*    20 */   290,  290,  290,  290,  110,  145,   74,   74,   74,  237,
+ /*    30 */    74,   74,  282,    6,    7,    7,  681,  681,  681,  231,
+ /*    40 */   231,  231,  231,  231,  231,  231,  231,  231,  231,  231,
+ /*    50 */   231,  231,  231,  231,  231,  231,  231,  231,  231,  290,
+ /*    60 */   290,  102,  102,  102,  102,  102,  102,  102,   74,   74,
+ /*    70 */    74,  297,   74,  145,  145,   74,   74,   74,  222,  222,
+ /*    80 */   246,  145,   74,   74,   74,   74,   74,   74,   74,   74,
+ /*    90 */    74,   74,   74,   74,   74,   74,   74,   74,   74,   74,
+ /*   100 */    74,   74,   74,   74,   74,   74,   74,   74,   74,   74,
+ /*   110 */    74,   74,   74,   74,   74,   74,   74,   74,   74,   74,
+ /*   120 */    74,   74,   74,   74,   74,   74,   74,   74,   74,   74,
+ /*   130 */    74,   74,  410,  410,  410,  361,  361,  361,  410,  361,
+ /*   140 */   410,  363,  375,  379,  390,  392,  395,  404,  409,  429,
+ /*   150 */   420,  410,  410,  410,  373,    6,    6,  410,  410,  394,
+ /*   160 */   396,  504,  472,  471,  503,  474,  478,  373,  410,  484,
+ /*   170 */   484,  410,  484,  410,  484,  410,  681,  681,   27,  100,
+ /*   180 */   127,  100,  100,   53,  182,  280,  280,  280,  280,  259,
+ /*   190 */   281,  298,  338,  338,  338,  338,   22,   14,   92,   92,
+ /*   200 */   190,  144,  326,  279,  252,  288,  291,  293,  294,  299,
+ /*   210 */   374,  400,  377,  334,  311,  157,  286,  301,  304,  314,
+ /*   220 */   315,  316,  322,  278,  289,  292,  328,  302,  428,  432,
+ /*   230 */   366,  382,  559,  421,  560,  562,  425,  568,  569,  485,
+ /*   240 */   487,  442,  465,  473,  475,  467,  477,  488,  482,  479,
+ /*   250 */   496,  493,  501,  609,  509,  510,  512,  505,  494,  511,
+ /*   260 */   495,  514,  517,  513,  518,  473,  519,  520,  521,  522,
+ /*   270 */   550,  619,  624,  626,  627,  628,  629,  555,  621,  561,
+ /*   280 */   499,  530,  530,  625,  506,  507,  530,  635,  637,  538,
+ /*   290 */   530,  639,  642,  643,  644,  645,  646,  647,  648,  649,
+ /*   300 */   650,  651,  652,  653,  654,  655,  656,  657,  554,  584,
+ /*   310 */   658,  659,  605,  607,  667,
 };
 #define YY_REDUCE_COUNT (177)
-#define YY_REDUCE_MIN   (-239)
-#define YY_REDUCE_MAX   (405)
+#define YY_REDUCE_MIN   (-244)
+#define YY_REDUCE_MAX   (414)
 static const short yy_reduce_ofst[] = {
- /*     0 */  -177,  -26,  -26,   34,   34,  149, -229, -215, -172, -175,
- /*    10 */   -44,   -7,   24,   28,   80,   96,  103, -184, -187, -232,
- /*    20 */  -205,  -90,    3,   26, -190,   15, -185, -182,  115,  -88,
- /*    30 */  -183, -105,  105,   71,  163,  188,   86,  146,  170, -239,
- /*    40 */  -216, -193, -116,  -95,  -15,   40,   97,  168,  173,  177,
- /*    50 */   190,  191,  192,  193,  194,  195,  196,  197,  198,  122,
- /*    60 */   215,  213,  226,  227,  228,  229,  230,  231,  261,  268,
- /*    70 */   271,  209,  272,  233,  235,  273,  274,  277,  202,  207,
- /*    80 */   236,  237,  279,  285,  286,  287,  291,  292,  294,  300,
- /*    90 */   303,  305,  306,  308,  310,  311,  312,  313,  314,  315,
- /*   100 */   318,  320,  321,  322,  323,  324,  325,  326,  327,  328,
- /*   110 */   329,  330,  331,  332,  333,  334,  335,  337,  338,  339,
- /*   120 */   340,  341,  342,  343,  344,  345,  346,  347,  348,  349,
- /*   130 */   350,  351,  352,  353,  354,  220,  224,  238,  356,  240,
- /*   140 */   358,  239,  243,  254,  244,  264,  267,  364,  366,  365,
- /*   150 */   241,  367,  368,  369,  371,  372,  374,  375,  376,  377,
- /*   160 */   379,  378,  381,  382,  385,  386,  388,  383,  384,  387,
- /*   170 */   389,  399,  400,  402,  404,  403,  394,  405,
+ /*     0 */  -177,  -26,  -26,   67,   67,   17, -229, -215, -172, -175,
+ /*    10 */    -7,   62,   78,  125,  149,  151,  155, -184, -187, -232,
+ /*    20 */  -205,   -8,   16,   47, -190,   -9, -185,   44,   71, -188,
+ /*    30 */    28,  -78,  -77,   63,  -53,    5,   84,  176,   83, -244,
+ /*    40 */  -239, -216, -193, -143, -136, -106,  -34,  -20,   60,   85,
+ /*    50 */    89,  136,  160,  167,  185,  195,  196,  197,  198,  215,
+ /*    60 */   216,  226,  227,  228,  229,  230,  232,  233,  267,  270,
+ /*    70 */   271,  212,  273,  234,  235,  274,  275,  276,  211,  213,
+ /*    80 */   236,  239,  284,  285,  287,  295,  296,  300,  303,  305,
+ /*    90 */   306,  307,  308,  309,  310,  312,  313,  317,  318,  319,
+ /*   100 */   320,  321,  323,  324,  325,  327,  329,  330,  331,  332,
+ /*   110 */   333,  335,  336,  337,  339,  340,  341,  342,  343,  344,
+ /*   120 */   345,  346,  347,  348,  349,  350,  351,  352,  353,  354,
+ /*   130 */   355,  356,  357,  358,  359,  225,  238,  240,  360,  247,
+ /*   140 */   362,  241,  243,  242,  260,  364,  367,  365,  244,  369,
+ /*   150 */   245,  368,  370,  371,  256,  372,  376,  378,  380,  381,
+ /*   160 */   383,  385,  384,  387,  391,  389,  386,  388,  393,  402,
+ /*   170 */   403,  405,  406,  408,  411,  413,  414,  407,
 };
 static const YYACTIONTYPE yy_default[] = {
- /*     0 */   771,  883,  829,  895,  817,  826, 1023, 1023,  771,  771,
- /*    10 */   771,  771,  771,  771,  771,  771,  771,  942,  790, 1023,
- /*    20 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  826,
- /*    30 */   771,  771,  832,  826,  832,  832,  937,  867,  885,  771,
- /*    40 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*    50 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*    60 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*    70 */   771,  944,  947,  771,  771,  949,  771,  771,  969,  969,
- /*    80 */   935,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*    90 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   100 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  815,
- /*   110 */   771,  813,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   120 */   771,  771,  771,  771,  771,  771,  800,  771,  771,  771,
- /*   130 */   771,  771,  792,  792,  792,  771,  771,  771,  792,  771,
- /*   140 */   792,  976,  980,  974,  962,  970,  961,  957,  955,  954,
- /*   150 */   984,  792,  792,  792,  830,  826,  826,  792,  792,  848,
- /*   160 */   846,  844,  836,  842,  838,  840,  834,  818,  792,  824,
- /*   170 */   824,  792,  824,  792,  824,  792,  867,  885,  771,  985,
- /*   180 */   771, 1022,  975, 1012, 1011, 1018, 1010, 1009, 1008,  771,
- /*   190 */   771,  771, 1004, 1005, 1007, 1006,  771,  771, 1014, 1013,
- /*   200 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   210 */   771,  771,  771,  987,  771,  981,  977,  771,  771,  771,
- /*   220 */   771,  771,  771,  771,  771,  771,  897,  771,  771,  771,
- /*   230 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   240 */   771,  771,  934,  771,  771,  771,  771,  945,  771,  771,
- /*   250 */   771,  771,  771,  771,  771,  771,  771,  971,  771,  963,
- /*   260 */   771,  771,  771,  771,  771,  909,  771,  771,  771,  771,
- /*   270 */   771,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   280 */   771, 1034, 1032,  771,  771,  771, 1028,  771,  771,  771,
- /*   290 */  1026,  771,  771,  771,  771,  771,  771,  771,  771,  771,
- /*   300 */   771,  771,  771,  771,  771,  771,  771,  771,  851,  771,
- /*   310 */   798,  796,  771,  788,  771,
+ /*     0 */   773,  885,  831,  897,  819,  828, 1026, 1026,  773,  773,
+ /*    10 */   773,  773,  773,  773,  773,  773,  773,  944,  792, 1026,
+ /*    20 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  828,
+ /*    30 */   773,  773,  834,  828,  834,  834,  939,  869,  887,  773,
+ /*    40 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*    50 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*    60 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*    70 */   773,  946,  949,  773,  773,  951,  773,  773,  971,  971,
+ /*    80 */   937,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*    90 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   100 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  817,
+ /*   110 */   773,  815,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   120 */   773,  773,  773,  773,  773,  773,  802,  773,  773,  773,
+ /*   130 */   773,  773,  794,  794,  794,  773,  773,  773,  794,  773,
+ /*   140 */   794,  978,  982,  976,  964,  972,  963,  959,  957,  956,
+ /*   150 */   986,  794,  794,  794,  832,  828,  828,  794,  794,  850,
+ /*   160 */   848,  846,  838,  844,  840,  842,  836,  820,  794,  826,
+ /*   170 */   826,  794,  826,  794,  826,  794,  869,  887,  773,  987,
+ /*   180 */   773, 1025,  977, 1015, 1014, 1021, 1013, 1012, 1011,  773,
+ /*   190 */   773,  773, 1007, 1008, 1010, 1009,  773,  773, 1017, 1016,
+ /*   200 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   210 */   773,  773,  773,  989,  773,  983,  979,  773,  773,  773,
+ /*   220 */   773,  773,  773,  773,  773,  773,  899,  773,  773,  773,
+ /*   230 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   240 */   773,  773,  936,  773,  773,  773,  773,  947,  773,  773,
+ /*   250 */   773,  773,  773,  773,  773,  773,  773,  973,  773,  965,
+ /*   260 */   773,  773,  773,  773,  773,  911,  773,  773,  773,  773,
+ /*   270 */   773,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   280 */   773, 1037, 1035,  773,  773,  773, 1031,  773,  773,  773,
+ /*   290 */  1029,  773,  773,  773,  773,  773,  773,  773,  773,  773,
+ /*   300 */   773,  773,  773,  773,  773,  773,  773,  773,  853,  773,
+ /*   310 */   800,  798,  773,  790,  773,
 };
 /********** End of lemon-generated parsing tables *****************************/
 
@@ -1256,46 +1257,47 @@ static const char *const yyRuleName[] = {
  /* 223 */ "expr ::= NOW",
  /* 224 */ "expr ::= VARIABLE",
  /* 225 */ "expr ::= BOOL",
- /* 226 */ "expr ::= ID LP exprlist RP",
- /* 227 */ "expr ::= ID LP STAR RP",
- /* 228 */ "expr ::= expr IS NULL",
- /* 229 */ "expr ::= expr IS NOT NULL",
- /* 230 */ "expr ::= expr LT expr",
- /* 231 */ "expr ::= expr GT expr",
- /* 232 */ "expr ::= expr LE expr",
- /* 233 */ "expr ::= expr GE expr",
- /* 234 */ "expr ::= expr NE expr",
- /* 235 */ "expr ::= expr EQ expr",
- /* 236 */ "expr ::= expr BETWEEN expr AND expr",
- /* 237 */ "expr ::= expr AND expr",
- /* 238 */ "expr ::= expr OR expr",
- /* 239 */ "expr ::= expr PLUS expr",
- /* 240 */ "expr ::= expr MINUS expr",
- /* 241 */ "expr ::= expr STAR expr",
- /* 242 */ "expr ::= expr SLASH expr",
- /* 243 */ "expr ::= expr REM expr",
- /* 244 */ "expr ::= expr LIKE expr",
- /* 245 */ "expr ::= expr IN LP exprlist RP",
- /* 246 */ "exprlist ::= exprlist COMMA expritem",
- /* 247 */ "exprlist ::= expritem",
- /* 248 */ "expritem ::= expr",
- /* 249 */ "expritem ::=",
- /* 250 */ "cmd ::= RESET QUERY CACHE",
- /* 251 */ "cmd ::= SYNCDB ids REPLICA",
- /* 252 */ "cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist",
- /* 253 */ "cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids",
- /* 254 */ "cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist",
- /* 255 */ "cmd ::= ALTER TABLE ids cpxName DROP TAG ids",
- /* 256 */ "cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids",
- /* 257 */ "cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem",
- /* 258 */ "cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist",
- /* 259 */ "cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids",
- /* 260 */ "cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist",
- /* 261 */ "cmd ::= ALTER STABLE ids cpxName DROP TAG ids",
- /* 262 */ "cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids",
- /* 263 */ "cmd ::= KILL CONNECTION INTEGER",
- /* 264 */ "cmd ::= KILL STREAM INTEGER COLON INTEGER",
- /* 265 */ "cmd ::= KILL QUERY INTEGER COLON INTEGER",
+ /* 226 */ "expr ::= NULL",
+ /* 227 */ "expr ::= ID LP exprlist RP",
+ /* 228 */ "expr ::= ID LP STAR RP",
+ /* 229 */ "expr ::= expr IS NULL",
+ /* 230 */ "expr ::= expr IS NOT NULL",
+ /* 231 */ "expr ::= expr LT expr",
+ /* 232 */ "expr ::= expr GT expr",
+ /* 233 */ "expr ::= expr LE expr",
+ /* 234 */ "expr ::= expr GE expr",
+ /* 235 */ "expr ::= expr NE expr",
+ /* 236 */ "expr ::= expr EQ expr",
+ /* 237 */ "expr ::= expr BETWEEN expr AND expr",
+ /* 238 */ "expr ::= expr AND expr",
+ /* 239 */ "expr ::= expr OR expr",
+ /* 240 */ "expr ::= expr PLUS expr",
+ /* 241 */ "expr ::= expr MINUS expr",
+ /* 242 */ "expr ::= expr STAR expr",
+ /* 243 */ "expr ::= expr SLASH expr",
+ /* 244 */ "expr ::= expr REM expr",
+ /* 245 */ "expr ::= expr LIKE expr",
+ /* 246 */ "expr ::= expr IN LP exprlist RP",
+ /* 247 */ "exprlist ::= exprlist COMMA expritem",
+ /* 248 */ "exprlist ::= expritem",
+ /* 249 */ "expritem ::= expr",
+ /* 250 */ "expritem ::=",
+ /* 251 */ "cmd ::= RESET QUERY CACHE",
+ /* 252 */ "cmd ::= SYNCDB ids REPLICA",
+ /* 253 */ "cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist",
+ /* 254 */ "cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids",
+ /* 255 */ "cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist",
+ /* 256 */ "cmd ::= ALTER TABLE ids cpxName DROP TAG ids",
+ /* 257 */ "cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids",
+ /* 258 */ "cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem",
+ /* 259 */ "cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist",
+ /* 260 */ "cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids",
+ /* 261 */ "cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist",
+ /* 262 */ "cmd ::= ALTER STABLE ids cpxName DROP TAG ids",
+ /* 263 */ "cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids",
+ /* 264 */ "cmd ::= KILL CONNECTION INTEGER",
+ /* 265 */ "cmd ::= KILL STREAM INTEGER COLON INTEGER",
+ /* 266 */ "cmd ::= KILL QUERY INTEGER COLON INTEGER",
 };
 #endif /* NDEBUG */
 
@@ -1981,46 +1983,47 @@ static const YYCODETYPE yyRuleInfoLhs[] = {
    251,  /* (223) expr ::= NOW */
    251,  /* (224) expr ::= VARIABLE */
    251,  /* (225) expr ::= BOOL */
-   251,  /* (226) expr ::= ID LP exprlist RP */
-   251,  /* (227) expr ::= ID LP STAR RP */
-   251,  /* (228) expr ::= expr IS NULL */
-   251,  /* (229) expr ::= expr IS NOT NULL */
-   251,  /* (230) expr ::= expr LT expr */
-   251,  /* (231) expr ::= expr GT expr */
-   251,  /* (232) expr ::= expr LE expr */
-   251,  /* (233) expr ::= expr GE expr */
-   251,  /* (234) expr ::= expr NE expr */
-   251,  /* (235) expr ::= expr EQ expr */
-   251,  /* (236) expr ::= expr BETWEEN expr AND expr */
-   251,  /* (237) expr ::= expr AND expr */
-   251,  /* (238) expr ::= expr OR expr */
-   251,  /* (239) expr ::= expr PLUS expr */
-   251,  /* (240) expr ::= expr MINUS expr */
-   251,  /* (241) expr ::= expr STAR expr */
-   251,  /* (242) expr ::= expr SLASH expr */
-   251,  /* (243) expr ::= expr REM expr */
-   251,  /* (244) expr ::= expr LIKE expr */
-   251,  /* (245) expr ::= expr IN LP exprlist RP */
-   260,  /* (246) exprlist ::= exprlist COMMA expritem */
-   260,  /* (247) exprlist ::= expritem */
-   261,  /* (248) expritem ::= expr */
-   261,  /* (249) expritem ::= */
-   188,  /* (250) cmd ::= RESET QUERY CACHE */
-   188,  /* (251) cmd ::= SYNCDB ids REPLICA */
-   188,  /* (252) cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
-   188,  /* (253) cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
-   188,  /* (254) cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
-   188,  /* (255) cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
-   188,  /* (256) cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
-   188,  /* (257) cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
-   188,  /* (258) cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
-   188,  /* (259) cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
-   188,  /* (260) cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
-   188,  /* (261) cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
-   188,  /* (262) cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
-   188,  /* (263) cmd ::= KILL CONNECTION INTEGER */
-   188,  /* (264) cmd ::= KILL STREAM INTEGER COLON INTEGER */
-   188,  /* (265) cmd ::= KILL QUERY INTEGER COLON INTEGER */
+   251,  /* (226) expr ::= NULL */
+   251,  /* (227) expr ::= ID LP exprlist RP */
+   251,  /* (228) expr ::= ID LP STAR RP */
+   251,  /* (229) expr ::= expr IS NULL */
+   251,  /* (230) expr ::= expr IS NOT NULL */
+   251,  /* (231) expr ::= expr LT expr */
+   251,  /* (232) expr ::= expr GT expr */
+   251,  /* (233) expr ::= expr LE expr */
+   251,  /* (234) expr ::= expr GE expr */
+   251,  /* (235) expr ::= expr NE expr */
+   251,  /* (236) expr ::= expr EQ expr */
+   251,  /* (237) expr ::= expr BETWEEN expr AND expr */
+   251,  /* (238) expr ::= expr AND expr */
+   251,  /* (239) expr ::= expr OR expr */
+   251,  /* (240) expr ::= expr PLUS expr */
+   251,  /* (241) expr ::= expr MINUS expr */
+   251,  /* (242) expr ::= expr STAR expr */
+   251,  /* (243) expr ::= expr SLASH expr */
+   251,  /* (244) expr ::= expr REM expr */
+   251,  /* (245) expr ::= expr LIKE expr */
+   251,  /* (246) expr ::= expr IN LP exprlist RP */
+   260,  /* (247) exprlist ::= exprlist COMMA expritem */
+   260,  /* (248) exprlist ::= expritem */
+   261,  /* (249) expritem ::= expr */
+   261,  /* (250) expritem ::= */
+   188,  /* (251) cmd ::= RESET QUERY CACHE */
+   188,  /* (252) cmd ::= SYNCDB ids REPLICA */
+   188,  /* (253) cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
+   188,  /* (254) cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
+   188,  /* (255) cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
+   188,  /* (256) cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
+   188,  /* (257) cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
+   188,  /* (258) cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
+   188,  /* (259) cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
+   188,  /* (260) cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
+   188,  /* (261) cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
+   188,  /* (262) cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
+   188,  /* (263) cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
+   188,  /* (264) cmd ::= KILL CONNECTION INTEGER */
+   188,  /* (265) cmd ::= KILL STREAM INTEGER COLON INTEGER */
+   188,  /* (266) cmd ::= KILL QUERY INTEGER COLON INTEGER */
 };
 
 /* For rule J, yyRuleInfoNRhs[J] contains the negative of the number
@@ -2252,46 +2255,47 @@ static const signed char yyRuleInfoNRhs[] = {
    -1,  /* (223) expr ::= NOW */
    -1,  /* (224) expr ::= VARIABLE */
    -1,  /* (225) expr ::= BOOL */
-   -4,  /* (226) expr ::= ID LP exprlist RP */
-   -4,  /* (227) expr ::= ID LP STAR RP */
-   -3,  /* (228) expr ::= expr IS NULL */
-   -4,  /* (229) expr ::= expr IS NOT NULL */
-   -3,  /* (230) expr ::= expr LT expr */
-   -3,  /* (231) expr ::= expr GT expr */
-   -3,  /* (232) expr ::= expr LE expr */
-   -3,  /* (233) expr ::= expr GE expr */
-   -3,  /* (234) expr ::= expr NE expr */
-   -3,  /* (235) expr ::= expr EQ expr */
-   -5,  /* (236) expr ::= expr BETWEEN expr AND expr */
-   -3,  /* (237) expr ::= expr AND expr */
-   -3,  /* (238) expr ::= expr OR expr */
-   -3,  /* (239) expr ::= expr PLUS expr */
-   -3,  /* (240) expr ::= expr MINUS expr */
-   -3,  /* (241) expr ::= expr STAR expr */
-   -3,  /* (242) expr ::= expr SLASH expr */
-   -3,  /* (243) expr ::= expr REM expr */
-   -3,  /* (244) expr ::= expr LIKE expr */
-   -5,  /* (245) expr ::= expr IN LP exprlist RP */
-   -3,  /* (246) exprlist ::= exprlist COMMA expritem */
-   -1,  /* (247) exprlist ::= expritem */
-   -1,  /* (248) expritem ::= expr */
-    0,  /* (249) expritem ::= */
-   -3,  /* (250) cmd ::= RESET QUERY CACHE */
-   -3,  /* (251) cmd ::= SYNCDB ids REPLICA */
-   -7,  /* (252) cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
-   -7,  /* (253) cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
-   -7,  /* (254) cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
-   -7,  /* (255) cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
-   -8,  /* (256) cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
-   -9,  /* (257) cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
-   -7,  /* (258) cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
-   -7,  /* (259) cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
-   -7,  /* (260) cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
-   -7,  /* (261) cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
-   -8,  /* (262) cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
-   -3,  /* (263) cmd ::= KILL CONNECTION INTEGER */
-   -5,  /* (264) cmd ::= KILL STREAM INTEGER COLON INTEGER */
-   -5,  /* (265) cmd ::= KILL QUERY INTEGER COLON INTEGER */
+   -1,  /* (226) expr ::= NULL */
+   -4,  /* (227) expr ::= ID LP exprlist RP */
+   -4,  /* (228) expr ::= ID LP STAR RP */
+   -3,  /* (229) expr ::= expr IS NULL */
+   -4,  /* (230) expr ::= expr IS NOT NULL */
+   -3,  /* (231) expr ::= expr LT expr */
+   -3,  /* (232) expr ::= expr GT expr */
+   -3,  /* (233) expr ::= expr LE expr */
+   -3,  /* (234) expr ::= expr GE expr */
+   -3,  /* (235) expr ::= expr NE expr */
+   -3,  /* (236) expr ::= expr EQ expr */
+   -5,  /* (237) expr ::= expr BETWEEN expr AND expr */
+   -3,  /* (238) expr ::= expr AND expr */
+   -3,  /* (239) expr ::= expr OR expr */
+   -3,  /* (240) expr ::= expr PLUS expr */
+   -3,  /* (241) expr ::= expr MINUS expr */
+   -3,  /* (242) expr ::= expr STAR expr */
+   -3,  /* (243) expr ::= expr SLASH expr */
+   -3,  /* (244) expr ::= expr REM expr */
+   -3,  /* (245) expr ::= expr LIKE expr */
+   -5,  /* (246) expr ::= expr IN LP exprlist RP */
+   -3,  /* (247) exprlist ::= exprlist COMMA expritem */
+   -1,  /* (248) exprlist ::= expritem */
+   -1,  /* (249) expritem ::= expr */
+    0,  /* (250) expritem ::= */
+   -3,  /* (251) cmd ::= RESET QUERY CACHE */
+   -3,  /* (252) cmd ::= SYNCDB ids REPLICA */
+   -7,  /* (253) cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
+   -7,  /* (254) cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
+   -7,  /* (255) cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
+   -7,  /* (256) cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
+   -8,  /* (257) cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
+   -9,  /* (258) cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
+   -7,  /* (259) cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
+   -7,  /* (260) cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
+   -7,  /* (261) cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
+   -7,  /* (262) cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
+   -8,  /* (263) cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
+   -3,  /* (264) cmd ::= KILL CONNECTION INTEGER */
+   -5,  /* (265) cmd ::= KILL STREAM INTEGER COLON INTEGER */
+   -5,  /* (266) cmd ::= KILL QUERY INTEGER COLON INTEGER */
 };
 
 static void yy_accept(yyParser*);  /* Forward Declaration */
@@ -3086,7 +3090,7 @@ static YYACTIONTYPE yy_reduce(
         break;
       case 200: /* having_opt ::= */
       case 210: /* where_opt ::= */ yytestcase(yyruleno==210);
-      case 249: /* expritem ::= */ yytestcase(yyruleno==249);
+      case 250: /* expritem ::= */ yytestcase(yyruleno==250);
 {yymsp[1].minor.yy170 = 0;}
         break;
       case 201: /* having_opt ::= HAVING expr */
@@ -3163,112 +3167,116 @@ static YYACTIONTYPE yy_reduce(
 { yylhsminor.yy170 = tSqlExprCreateIdValue(&yymsp[0].minor.yy0, TK_BOOL);}
   yymsp[0].minor.yy170 = yylhsminor.yy170;
         break;
-      case 226: /* expr ::= ID LP exprlist RP */
+      case 226: /* expr ::= NULL */
+{ yylhsminor.yy170 = tSqlExprCreateIdValue(&yymsp[0].minor.yy0, TK_NULL);}
+  yymsp[0].minor.yy170 = yylhsminor.yy170;
+        break;
+      case 227: /* expr ::= ID LP exprlist RP */
 { yylhsminor.yy170 = tSqlExprCreateFunction(yymsp[-1].minor.yy429, &yymsp[-3].minor.yy0, &yymsp[0].minor.yy0, yymsp[-3].minor.yy0.type); }
   yymsp[-3].minor.yy170 = yylhsminor.yy170;
         break;
-      case 227: /* expr ::= ID LP STAR RP */
+      case 228: /* expr ::= ID LP STAR RP */
 { yylhsminor.yy170 = tSqlExprCreateFunction(NULL, &yymsp[-3].minor.yy0, &yymsp[0].minor.yy0, yymsp[-3].minor.yy0.type); }
   yymsp[-3].minor.yy170 = yylhsminor.yy170;
         break;
-      case 228: /* expr ::= expr IS NULL */
+      case 229: /* expr ::= expr IS NULL */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, NULL, TK_ISNULL);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 229: /* expr ::= expr IS NOT NULL */
+      case 230: /* expr ::= expr IS NOT NULL */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-3].minor.yy170, NULL, TK_NOTNULL);}
   yymsp[-3].minor.yy170 = yylhsminor.yy170;
         break;
-      case 230: /* expr ::= expr LT expr */
+      case 231: /* expr ::= expr LT expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_LT);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 231: /* expr ::= expr GT expr */
+      case 232: /* expr ::= expr GT expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_GT);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 232: /* expr ::= expr LE expr */
+      case 233: /* expr ::= expr LE expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_LE);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 233: /* expr ::= expr GE expr */
+      case 234: /* expr ::= expr GE expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_GE);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 234: /* expr ::= expr NE expr */
+      case 235: /* expr ::= expr NE expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_NE);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 235: /* expr ::= expr EQ expr */
+      case 236: /* expr ::= expr EQ expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_EQ);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 236: /* expr ::= expr BETWEEN expr AND expr */
+      case 237: /* expr ::= expr BETWEEN expr AND expr */
 { tSqlExpr* X2 = tSqlExprClone(yymsp[-4].minor.yy170); yylhsminor.yy170 = tSqlExprCreate(tSqlExprCreate(yymsp[-4].minor.yy170, yymsp[-2].minor.yy170, TK_GE), tSqlExprCreate(X2, yymsp[0].minor.yy170, TK_LE), TK_AND);}
   yymsp[-4].minor.yy170 = yylhsminor.yy170;
         break;
-      case 237: /* expr ::= expr AND expr */
+      case 238: /* expr ::= expr AND expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_AND);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 238: /* expr ::= expr OR expr */
+      case 239: /* expr ::= expr OR expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_OR); }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 239: /* expr ::= expr PLUS expr */
+      case 240: /* expr ::= expr PLUS expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_PLUS);  }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 240: /* expr ::= expr MINUS expr */
+      case 241: /* expr ::= expr MINUS expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_MINUS); }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 241: /* expr ::= expr STAR expr */
+      case 242: /* expr ::= expr STAR expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_STAR);  }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 242: /* expr ::= expr SLASH expr */
+      case 243: /* expr ::= expr SLASH expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_DIVIDE);}
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 243: /* expr ::= expr REM expr */
+      case 244: /* expr ::= expr REM expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_REM);   }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 244: /* expr ::= expr LIKE expr */
+      case 245: /* expr ::= expr LIKE expr */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-2].minor.yy170, yymsp[0].minor.yy170, TK_LIKE);  }
   yymsp[-2].minor.yy170 = yylhsminor.yy170;
         break;
-      case 245: /* expr ::= expr IN LP exprlist RP */
+      case 246: /* expr ::= expr IN LP exprlist RP */
 {yylhsminor.yy170 = tSqlExprCreate(yymsp[-4].minor.yy170, (tSqlExpr*)yymsp[-1].minor.yy429, TK_IN); }
   yymsp[-4].minor.yy170 = yylhsminor.yy170;
         break;
-      case 246: /* exprlist ::= exprlist COMMA expritem */
+      case 247: /* exprlist ::= exprlist COMMA expritem */
 {yylhsminor.yy429 = tSqlExprListAppend(yymsp[-2].minor.yy429,yymsp[0].minor.yy170,0, 0);}
   yymsp[-2].minor.yy429 = yylhsminor.yy429;
         break;
-      case 247: /* exprlist ::= expritem */
+      case 248: /* exprlist ::= expritem */
 {yylhsminor.yy429 = tSqlExprListAppend(0,yymsp[0].minor.yy170,0, 0);}
   yymsp[0].minor.yy429 = yylhsminor.yy429;
         break;
-      case 248: /* expritem ::= expr */
+      case 249: /* expritem ::= expr */
 {yylhsminor.yy170 = yymsp[0].minor.yy170;}
   yymsp[0].minor.yy170 = yylhsminor.yy170;
         break;
-      case 250: /* cmd ::= RESET QUERY CACHE */
+      case 251: /* cmd ::= RESET QUERY CACHE */
 { setDCLSqlElems(pInfo, TSDB_SQL_RESET_CACHE, 0);}
         break;
-      case 251: /* cmd ::= SYNCDB ids REPLICA */
+      case 252: /* cmd ::= SYNCDB ids REPLICA */
 { setDCLSqlElems(pInfo, TSDB_SQL_SYNC_DB_REPLICA, 1, &yymsp[-1].minor.yy0);}
         break;
-      case 252: /* cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
+      case 253: /* cmd ::= ALTER TABLE ids cpxName ADD COLUMN columnlist */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
     SAlterTableInfo* pAlterTable = tSetAlterTableInfo(&yymsp[-4].minor.yy0, yymsp[0].minor.yy429, NULL, TSDB_ALTER_TABLE_ADD_COLUMN, -1);
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 253: /* cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
+      case 254: /* cmd ::= ALTER TABLE ids cpxName DROP COLUMN ids */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
 
@@ -3279,14 +3287,14 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 254: /* cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
+      case 255: /* cmd ::= ALTER TABLE ids cpxName ADD TAG columnlist */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
     SAlterTableInfo* pAlterTable = tSetAlterTableInfo(&yymsp[-4].minor.yy0, yymsp[0].minor.yy429, NULL, TSDB_ALTER_TABLE_ADD_TAG_COLUMN, -1);
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 255: /* cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
+      case 256: /* cmd ::= ALTER TABLE ids cpxName DROP TAG ids */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
 
@@ -3297,7 +3305,7 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 256: /* cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
+      case 257: /* cmd ::= ALTER TABLE ids cpxName CHANGE TAG ids ids */
 {
     yymsp[-5].minor.yy0.n += yymsp[-4].minor.yy0.n;
 
@@ -3311,7 +3319,7 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 257: /* cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
+      case 258: /* cmd ::= ALTER TABLE ids cpxName SET TAG ids EQ tagitem */
 {
     yymsp[-6].minor.yy0.n += yymsp[-5].minor.yy0.n;
 
@@ -3323,14 +3331,14 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 258: /* cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
+      case 259: /* cmd ::= ALTER STABLE ids cpxName ADD COLUMN columnlist */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
     SAlterTableInfo* pAlterTable = tSetAlterTableInfo(&yymsp[-4].minor.yy0, yymsp[0].minor.yy429, NULL, TSDB_ALTER_TABLE_ADD_COLUMN, TSDB_SUPER_TABLE);
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 259: /* cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
+      case 260: /* cmd ::= ALTER STABLE ids cpxName DROP COLUMN ids */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
 
@@ -3341,14 +3349,14 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 260: /* cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
+      case 261: /* cmd ::= ALTER STABLE ids cpxName ADD TAG columnlist */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
     SAlterTableInfo* pAlterTable = tSetAlterTableInfo(&yymsp[-4].minor.yy0, yymsp[0].minor.yy429, NULL, TSDB_ALTER_TABLE_ADD_TAG_COLUMN, TSDB_SUPER_TABLE);
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 261: /* cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
+      case 262: /* cmd ::= ALTER STABLE ids cpxName DROP TAG ids */
 {
     yymsp[-4].minor.yy0.n += yymsp[-3].minor.yy0.n;
 
@@ -3359,7 +3367,7 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 262: /* cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
+      case 263: /* cmd ::= ALTER STABLE ids cpxName CHANGE TAG ids ids */
 {
     yymsp[-5].minor.yy0.n += yymsp[-4].minor.yy0.n;
 
@@ -3373,13 +3381,13 @@ static YYACTIONTYPE yy_reduce(
     setSqlInfo(pInfo, pAlterTable, NULL, TSDB_SQL_ALTER_TABLE);
 }
         break;
-      case 263: /* cmd ::= KILL CONNECTION INTEGER */
+      case 264: /* cmd ::= KILL CONNECTION INTEGER */
 {setKillSql(pInfo, TSDB_SQL_KILL_CONNECTION, &yymsp[0].minor.yy0);}
         break;
-      case 264: /* cmd ::= KILL STREAM INTEGER COLON INTEGER */
+      case 265: /* cmd ::= KILL STREAM INTEGER COLON INTEGER */
 {yymsp[-2].minor.yy0.n += (yymsp[-1].minor.yy0.n + yymsp[0].minor.yy0.n); setKillSql(pInfo, TSDB_SQL_KILL_STREAM, &yymsp[-2].minor.yy0);}
         break;
-      case 265: /* cmd ::= KILL QUERY INTEGER COLON INTEGER */
+      case 266: /* cmd ::= KILL QUERY INTEGER COLON INTEGER */
 {yymsp[-2].minor.yy0.n += (yymsp[-1].minor.yy0.n + yymsp[0].minor.yy0.n); setKillSql(pInfo, TSDB_SQL_KILL_QUERY, &yymsp[-2].minor.yy0);}
         break;
       default:
diff --git a/src/vnode/src/vnodeRead.c b/src/vnode/src/vnodeRead.c
index 8233c45632b1b08c6dfe24a1a692f21379dc5036..0836ade77ff6617ee032e7266c99ff73088f221b 100644
--- a/src/vnode/src/vnodeRead.c
+++ b/src/vnode/src/vnodeRead.c
@@ -364,7 +364,7 @@ static int32_t vnodeProcessFetchMsg(SVnodeObj *pVnode, SVReadMsg *pRead) {
 
   // register the qhandle to connect to quit query immediate if connection is broken
   if (vnodeNotifyCurrentQhandle(pRead->rpcHandle, pRetrieve->qId, *handle, pVnode->vgId) != TSDB_CODE_SUCCESS) {
-    vError("vgId:%d, QInfo:%"PRIu64 "-%p, retrieve discarded since link is broken, %p", pVnode->vgId, pRetrieve->qhandle, *handle, pRead->rpcHandle);
+    vError("vgId:%d, QInfo:%"PRIu64 "-%p, retrieve discarded since link is broken, conn:%p", pVnode->vgId, pRetrieve->qhandle, *handle, pRead->rpcHandle);
     code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
     qKillQuery(*handle);
     qReleaseQInfo(pVnode->qMgmt, (void **)&handle, true);
@@ -409,7 +409,7 @@ static int32_t vnodeProcessFetchMsg(SVnodeObj *pVnode, SVReadMsg *pRead) {
 // client is broken, the query needs to be killed immediately.
 int32_t vnodeNotifyCurrentQhandle(void *handle, uint64_t qId, void *qhandle, int32_t vgId) {
   SRetrieveTableMsg *pMsg = rpcMallocCont(sizeof(SRetrieveTableMsg));
-  pMsg->qhandle = htobe64((uint64_t)qhandle);
+  pMsg->qId = htobe64(qId);
   pMsg->header.vgId = htonl(vgId);
   pMsg->header.contLen = htonl(sizeof(SRetrieveTableMsg));
 
diff --git a/src/vnode/src/vnodeWrite.c b/src/vnode/src/vnodeWrite.c
index e318978a11186a86dff79a5aaea234b9719ce979..92e1ba804be5ab30366594933ebcdaff3bd0727b 100644
--- a/src/vnode/src/vnodeWrite.c
+++ b/src/vnode/src/vnodeWrite.c
@@ -96,6 +96,7 @@ int32_t vnodeProcessWrite(void *vparam, void *wparam, int32_t qtype, void *rpara
   // write into WAL
   code = walWrite(pVnode->wal, pHead);
   if (code < 0) {
+    if (syncCode > 0) atomic_sub_fetch_32(&pWrite->processedCount, 1);
     vError("vgId:%d, hver:%" PRIu64 " vver:%" PRIu64 " code:0x%x", pVnode->vgId, pHead->version, pVnode->version, code);
     return code;
   }
@@ -104,7 +105,10 @@ int32_t vnodeProcessWrite(void *vparam, void *wparam, int32_t qtype, void *rpara
 
   // write data locally
   code = (*vnodeProcessWriteMsgFp[pHead->msgType])(pVnode, pHead->cont, pRspRet);
-  if (code < 0) return code;
+  if (code < 0) {
+    if (syncCode > 0) atomic_sub_fetch_32(&pWrite->processedCount, 1);
+    return code;
+  }
 
   return syncCode;
 }
diff --git a/tests/script/general/parser/topbot.sim b/tests/script/general/parser/topbot.sim
index e23bbf6724ea7b95a759764ac80cc2dbcdb73398..5c61acb2ba246f1f0102ed01b90e0b164ebfa8dc 100644
--- a/tests/script/general/parser/topbot.sim
+++ b/tests/script/general/parser/topbot.sim
@@ -325,4 +325,56 @@ if $row != 0 then
   return -1
 endi
 
+print ===============================>td-3621
+sql create table ttm2(ts timestamp, k bool);
+sql insert into ttm2 values('2021-1-1 1:1:1', true)
+sql insert into ttm2 values('2021-1-1 1:1:2', NULL)
+sql insert into ttm2 values('2021-1-1 1:1:3', false)
+sql select * from ttm2 where k is not null
+if $row !=  2 then
+  return -1
+endi
+
+if $data00 != @21-01-01 01:01:01.000@ then
+  print expect 21-01-01 01:01:01.000, actual $data00
+  return -1
+endi
+
+sql select * from ttm2 where k is null
+if $row != 1 then
+  return -1
+endi
+
+if $data00 != @21-01-01 01:01:02.000@ then
+  return -1
+endi
+
+sql select * from ttm2 where k=true
+if $row != 1 then
+  return -1
+endi
+
+if $data00 != @21-01-01 01:01:01.000@ then
+  return -1
+endi
+
+sql select * from ttm2 where k=false
+if $row != 1 then
+  return -1
+endi
+
+if $data00 != @21-01-01 01:01:03.000@ then
+  return -1
+endi
+
+sql select * from ttm2 where k<>false
+if $row != 1 then
+  return -1
+endi
+
+sql_error select * from ttm2 where k=null
+sql_error select * from ttm2 where k<>null
+sql_error select * from ttm2 where k like null
+sql_error select * from ttm2 where k<null
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file