Merge pull request #12212 from taosdata/feature/3.0_wxy

feat: sql command 'grant', 'revoke', 'kill transaction' and 'show transactions'

include/common/tmsg.h

@@ -135,6 +135,8 @@ typedef enum _mgmt_table {
 #define TSDB_ALTER_USER_ADD_WRITE_DB    0x6
 #define TSDB_ALTER_USER_REMOVE_WRITE_DB 0x7
 #define TSDB_ALTER_USER_CLEAR_WRITE_DB  0x8
+#define TSDB_ALTER_USER_ADD_ALL_DB      0x9
+#define TSDB_ALTER_USER_REMOVE_ALL_DB   0xA
 
 #define TSDB_ALTER_USER_PRIVILEGES 0x2
 

include/common/ttokendef.h

@@ -51,201 +51,208 @@
 #define TK_USER          33
 #define TK_PRIVILEGE     34
 #define TK_DROP          35
-#define TK_DNODE         36
-#define TK_PORT          37
-#define TK_NK_INTEGER    38
-#define TK_DNODES        39
-#define TK_NK_IPTOKEN    40
-#define TK_LOCAL         41
-#define TK_QNODE         42
-#define TK_ON            43
-#define TK_BNODE         44
-#define TK_SNODE         45
-#define TK_MNODE         46
-#define TK_DATABASE      47
-#define TK_USE           48
-#define TK_IF            49
-#define TK_NOT           50
-#define TK_EXISTS        51
-#define TK_BUFFER        52
-#define TK_CACHELAST     53
-#define TK_COMP          54
-#define TK_DAYS          55
-#define TK_NK_VARIABLE   56
-#define TK_FSYNC         57
-#define TK_MAXROWS       58
-#define TK_MINROWS       59
-#define TK_KEEP          60
-#define TK_PAGES         61
-#define TK_PAGESIZE      62
-#define TK_PRECISION     63
-#define TK_REPLICA       64
-#define TK_STRICT        65
-#define TK_WAL           66
-#define TK_VGROUPS       67
-#define TK_SINGLE_STABLE 68
-#define TK_RETENTIONS    69
-#define TK_NK_COMMA      70
-#define TK_NK_COLON      71
-#define TK_TABLE         72
-#define TK_NK_LP         73
-#define TK_NK_RP         74
-#define TK_STABLE        75
-#define TK_ADD           76
-#define TK_COLUMN        77
-#define TK_MODIFY        78
-#define TK_RENAME        79
-#define TK_TAG           80
-#define TK_SET           81
-#define TK_NK_EQ         82
-#define TK_USING         83
-#define TK_TAGS          84
-#define TK_NK_DOT        85
-#define TK_COMMENT       86
-#define TK_BOOL          87
-#define TK_TINYINT       88
-#define TK_SMALLINT      89
-#define TK_INT           90
-#define TK_INTEGER       91
-#define TK_BIGINT        92
-#define TK_FLOAT         93
-#define TK_DOUBLE        94
-#define TK_BINARY        95
-#define TK_TIMESTAMP     96
-#define TK_NCHAR         97
-#define TK_UNSIGNED      98
-#define TK_JSON          99
-#define TK_VARCHAR       100
-#define TK_MEDIUMBLOB    101
-#define TK_BLOB          102
-#define TK_VARBINARY     103
-#define TK_DECIMAL       104
-#define TK_DELAY         105
-#define TK_FILE_FACTOR   106
-#define TK_NK_FLOAT      107
-#define TK_ROLLUP        108
-#define TK_TTL           109
-#define TK_SMA           110
-#define TK_SHOW          111
-#define TK_DATABASES     112
-#define TK_TABLES        113
-#define TK_STABLES       114
-#define TK_MNODES        115
-#define TK_MODULES       116
-#define TK_QNODES        117
-#define TK_FUNCTIONS     118
-#define TK_INDEXES       119
-#define TK_FROM          120
-#define TK_ACCOUNTS      121
-#define TK_APPS          122
-#define TK_CONNECTIONS   123
-#define TK_LICENCE       124
-#define TK_GRANTS        125
-#define TK_QUERIES       126
-#define TK_SCORES        127
-#define TK_TOPICS        128
-#define TK_VARIABLES     129
-#define TK_BNODES        130
-#define TK_SNODES        131
-#define TK_CLUSTER       132
-#define TK_LIKE          133
-#define TK_INDEX         134
-#define TK_FULLTEXT      135
-#define TK_FUNCTION      136
-#define TK_INTERVAL      137
-#define TK_TOPIC         138
-#define TK_AS            139
-#define TK_WITH          140
-#define TK_SCHEMA        141
-#define TK_DESC          142
-#define TK_DESCRIBE      143
-#define TK_RESET         144
-#define TK_QUERY         145
-#define TK_CACHE         146
-#define TK_EXPLAIN       147
-#define TK_ANALYZE       148
-#define TK_VERBOSE       149
-#define TK_NK_BOOL       150
-#define TK_RATIO         151
-#define TK_COMPACT       152
-#define TK_VNODES        153
-#define TK_IN            154
-#define TK_OUTPUTTYPE    155
-#define TK_AGGREGATE     156
-#define TK_BUFSIZE       157
-#define TK_STREAM        158
-#define TK_INTO          159
-#define TK_TRIGGER       160
-#define TK_AT_ONCE       161
-#define TK_WINDOW_CLOSE  162
-#define TK_WATERMARK     163
-#define TK_KILL          164
-#define TK_CONNECTION    165
-#define TK_MERGE         166
-#define TK_VGROUP        167
-#define TK_REDISTRIBUTE  168
-#define TK_SPLIT         169
-#define TK_SYNCDB        170
-#define TK_NULL          171
-#define TK_NK_QUESTION   172
-#define TK_NK_ARROW      173
-#define TK_ROWTS         174
-#define TK_TBNAME        175
-#define TK_QSTARTTS      176
-#define TK_QENDTS        177
-#define TK_WSTARTTS      178
-#define TK_WENDTS        179
-#define TK_WDURATION     180
-#define TK_CAST          181
-#define TK_NOW           182
-#define TK_TODAY         183
-#define TK_TIMEZONE      184
-#define TK_COUNT         185
-#define TK_FIRST         186
-#define TK_LAST          187
-#define TK_LAST_ROW      188
-#define TK_BETWEEN       189
-#define TK_IS            190
-#define TK_NK_LT         191
-#define TK_NK_GT         192
-#define TK_NK_LE         193
-#define TK_NK_GE         194
-#define TK_NK_NE         195
-#define TK_MATCH         196
-#define TK_NMATCH        197
-#define TK_CONTAINS      198
-#define TK_JOIN          199
-#define TK_INNER         200
-#define TK_SELECT        201
-#define TK_DISTINCT      202
-#define TK_WHERE         203
-#define TK_PARTITION     204
-#define TK_BY            205
-#define TK_SESSION       206
-#define TK_STATE_WINDOW  207
-#define TK_SLIDING       208
-#define TK_FILL          209
-#define TK_VALUE         210
-#define TK_NONE          211
-#define TK_PREV          212
-#define TK_LINEAR        213
-#define TK_NEXT          214
-#define TK_GROUP         215
-#define TK_HAVING        216
-#define TK_ORDER         217
-#define TK_SLIMIT        218
-#define TK_SOFFSET       219
-#define TK_LIMIT         220
-#define TK_OFFSET        221
-#define TK_ASC           222
-#define TK_NULLS         223
-#define TK_ID            224
-#define TK_NK_BITNOT     225
-#define TK_INSERT        226
-#define TK_VALUES        227
-#define TK_IMPORT        228
-#define TK_NK_SEMI       229
-#define TK_FILE          230
+#define TK_GRANT         36
+#define TK_ON            37
+#define TK_TO            38
+#define TK_REVOKE        39
+#define TK_FROM          40
+#define TK_NK_COMMA      41
+#define TK_READ          42
+#define TK_WRITE         43
+#define TK_NK_DOT        44
+#define TK_DNODE         45
+#define TK_PORT          46
+#define TK_NK_INTEGER    47
+#define TK_DNODES        48
+#define TK_NK_IPTOKEN    49
+#define TK_LOCAL         50
+#define TK_QNODE         51
+#define TK_BNODE         52
+#define TK_SNODE         53
+#define TK_MNODE         54
+#define TK_DATABASE      55
+#define TK_USE           56
+#define TK_IF            57
+#define TK_NOT           58
+#define TK_EXISTS        59
+#define TK_BUFFER        60
+#define TK_CACHELAST     61
+#define TK_COMP          62
+#define TK_DAYS          63
+#define TK_NK_VARIABLE   64
+#define TK_FSYNC         65
+#define TK_MAXROWS       66
+#define TK_MINROWS       67
+#define TK_KEEP          68
+#define TK_PAGES         69
+#define TK_PAGESIZE      70
+#define TK_PRECISION     71
+#define TK_REPLICA       72
+#define TK_STRICT        73
+#define TK_WAL           74
+#define TK_VGROUPS       75
+#define TK_SINGLE_STABLE 76
+#define TK_RETENTIONS    77
+#define TK_NK_COLON      78
+#define TK_TABLE         79
+#define TK_NK_LP         80
+#define TK_NK_RP         81
+#define TK_STABLE        82
+#define TK_ADD           83
+#define TK_COLUMN        84
+#define TK_MODIFY        85
+#define TK_RENAME        86
+#define TK_TAG           87
+#define TK_SET           88
+#define TK_NK_EQ         89
+#define TK_USING         90
+#define TK_TAGS          91
+#define TK_COMMENT       92
+#define TK_BOOL          93
+#define TK_TINYINT       94
+#define TK_SMALLINT      95
+#define TK_INT           96
+#define TK_INTEGER       97
+#define TK_BIGINT        98
+#define TK_FLOAT         99
+#define TK_DOUBLE        100
+#define TK_BINARY        101
+#define TK_TIMESTAMP     102
+#define TK_NCHAR         103
+#define TK_UNSIGNED      104
+#define TK_JSON          105
+#define TK_VARCHAR       106
+#define TK_MEDIUMBLOB    107
+#define TK_BLOB          108
+#define TK_VARBINARY     109
+#define TK_DECIMAL       110
+#define TK_DELAY         111
+#define TK_FILE_FACTOR   112
+#define TK_NK_FLOAT      113
+#define TK_ROLLUP        114
+#define TK_TTL           115
+#define TK_SMA           116
+#define TK_SHOW          117
+#define TK_DATABASES     118
+#define TK_TABLES        119
+#define TK_STABLES       120
+#define TK_MNODES        121
+#define TK_MODULES       122
+#define TK_QNODES        123
+#define TK_FUNCTIONS     124
+#define TK_INDEXES       125
+#define TK_ACCOUNTS      126
+#define TK_APPS          127
+#define TK_CONNECTIONS   128
+#define TK_LICENCE       129
+#define TK_GRANTS        130
+#define TK_QUERIES       131
+#define TK_SCORES        132
+#define TK_TOPICS        133
+#define TK_VARIABLES     134
+#define TK_BNODES        135
+#define TK_SNODES        136
+#define TK_CLUSTER       137
+#define TK_TRANSACTIONS  138
+#define TK_LIKE          139
+#define TK_INDEX         140
+#define TK_FULLTEXT      141
+#define TK_FUNCTION      142
+#define TK_INTERVAL      143
+#define TK_TOPIC         144
+#define TK_AS            145
+#define TK_WITH          146
+#define TK_SCHEMA        147
+#define TK_DESC          148
+#define TK_DESCRIBE      149
+#define TK_RESET         150
+#define TK_QUERY         151
+#define TK_CACHE         152
+#define TK_EXPLAIN       153
+#define TK_ANALYZE       154
+#define TK_VERBOSE       155
+#define TK_NK_BOOL       156
+#define TK_RATIO         157
+#define TK_COMPACT       158
+#define TK_VNODES        159
+#define TK_IN            160
+#define TK_OUTPUTTYPE    161
+#define TK_AGGREGATE     162
+#define TK_BUFSIZE       163
+#define TK_STREAM        164
+#define TK_INTO          165
+#define TK_TRIGGER       166
+#define TK_AT_ONCE       167
+#define TK_WINDOW_CLOSE  168
+#define TK_WATERMARK     169
+#define TK_KILL          170
+#define TK_CONNECTION    171
+#define TK_TRANSACTION   172
+#define TK_MERGE         173
+#define TK_VGROUP        174
+#define TK_REDISTRIBUTE  175
+#define TK_SPLIT         176
+#define TK_SYNCDB        177
+#define TK_NULL          178
+#define TK_NK_QUESTION   179
+#define TK_NK_ARROW      180
+#define TK_ROWTS         181
+#define TK_TBNAME        182
+#define TK_QSTARTTS      183
+#define TK_QENDTS        184
+#define TK_WSTARTTS      185
+#define TK_WENDTS        186
+#define TK_WDURATION     187
+#define TK_CAST          188
+#define TK_NOW           189
+#define TK_TODAY         190
+#define TK_TIMEZONE      191
+#define TK_COUNT         192
+#define TK_FIRST         193
+#define TK_LAST          194
+#define TK_LAST_ROW      195
+#define TK_BETWEEN       196
+#define TK_IS            197
+#define TK_NK_LT         198
+#define TK_NK_GT         199
+#define TK_NK_LE         200
+#define TK_NK_GE         201
+#define TK_NK_NE         202
+#define TK_MATCH         203
+#define TK_NMATCH        204
+#define TK_CONTAINS      205
+#define TK_JOIN          206
+#define TK_INNER         207
+#define TK_SELECT        208
+#define TK_DISTINCT      209
+#define TK_WHERE         210
+#define TK_PARTITION     211
+#define TK_BY            212
+#define TK_SESSION       213
+#define TK_STATE_WINDOW  214
+#define TK_SLIDING       215
+#define TK_FILL          216
+#define TK_VALUE         217
+#define TK_NONE          218
+#define TK_PREV          219
+#define TK_LINEAR        220
+#define TK_NEXT          221
+#define TK_GROUP         222
+#define TK_HAVING        223
+#define TK_ORDER         224
+#define TK_SLIMIT        225
+#define TK_SOFFSET       226
+#define TK_LIMIT         227
+#define TK_OFFSET        228
+#define TK_ASC           229
+#define TK_NULLS         230
+#define TK_ID            231
+#define TK_NK_BITNOT     232
+#define TK_INSERT        233
+#define TK_VALUES        234
+#define TK_IMPORT        235
+#define TK_NK_SEMI       236
+#define TK_FILE          237
 
 #define TK_NK_SPACE   300
 #define TK_NK_COMMENT 301

include/libs/nodes/cmdnodes.h

@@ -310,6 +310,29 @@ typedef struct SCreateFunctionStmt {
   int32_t   bufSize;
 } SCreateFunctionStmt;
 
+typedef struct SDropFunctionStmt {
+  ENodeType type;
+  char      funcName[TSDB_FUNC_NAME_LEN];
+  bool      ignoreNotExists;
+} SDropFunctionStmt;
+
+#define PRIVILEGE_TYPE_MASK(n) (1 << n)
+
+#define PRIVILEGE_TYPE_ALL   PRIVILEGE_TYPE_MASK(0)
+#define PRIVILEGE_TYPE_READ  PRIVILEGE_TYPE_MASK(1)
+#define PRIVILEGE_TYPE_WRITE PRIVILEGE_TYPE_MASK(2)
+
+#define PRIVILEGE_TYPE_TEST_MASK(val, mask) (((val) & (mask)) != 0)
+
+typedef struct SGrantStmt {
+  ENodeType type;
+  char      userName[TSDB_USER_LEN];
+  char      dbName[TSDB_DB_NAME_LEN];
+  int64_t   privileges;
+} SGrantStmt;
+
+typedef SGrantStmt SRevokeStmt;
+
 #ifdef __cplusplus
 }
 #endif

include/libs/nodes/nodes.h

@@ -143,6 +143,8 @@ typedef enum ENodeType {
   QUERY_NODE_REDISTRIBUTE_VGROUP_STMT,
   QUERY_NODE_SPLIT_VGROUP_STMT,
   QUERY_NODE_SYNCDB_STMT,
+  QUERY_NODE_GRANT_STMT,
+  QUERY_NODE_REVOKE_STMT,
   QUERY_NODE_SHOW_DNODES_STMT,
   QUERY_NODE_SHOW_MNODES_STMT,
   QUERY_NODE_SHOW_MODULES_STMT,
@@ -174,8 +176,10 @@ typedef enum ENodeType {
   QUERY_NODE_SHOW_CREATE_DATABASE_STMT,
   QUERY_NODE_SHOW_CREATE_TABLE_STMT,
   QUERY_NODE_SHOW_CREATE_STABLE_STMT,
+  QUERY_NODE_SHOW_TRANSACTIONS_STMT,
   QUERY_NODE_KILL_CONNECTION_STMT,
   QUERY_NODE_KILL_QUERY_STMT,
+  QUERY_NODE_KILL_TRANSACTION_STMT,
 
   // logic plan node
   QUERY_NODE_LOGIC_PLAN_SCAN,

include/libs/planner/planner.h

@@ -25,20 +25,18 @@ extern "C" {
 
 typedef struct SPlanContext {
   uint64_t queryId;
-  int32_t acctId;
-  SEpSet mgmtEpSet;
-  SNode* pAstRoot;
-  bool topicQuery;
-  bool streamQuery;
-  bool rSmaQuery;
-  bool showRewrite;
-  int8_t triggerType;
-  int64_t watermark;
-  int32_t placeholderNum;
-  void* pTransporter;
-  struct SCatalog* pCatalog;
-  char* pMsg;
-  int32_t msgLen;
+  int32_t  acctId;
+  SEpSet   mgmtEpSet;
+  SNode*   pAstRoot;
+  bool     topicQuery;
+  bool     streamQuery;
+  bool     rSmaQuery;
+  bool     showRewrite;
+  int8_t   triggerType;
+  int64_t  watermark;
+  int32_t  placeholderNum;
+  char*    pMsg;
+  int32_t  msgLen;
 } SPlanContext;
 
 // Create the physical plan for the query, according to the AST.
@@ -47,7 +45,7 @@ int32_t qCreateQueryPlan(SPlanContext* pCxt, SQueryPlan** pPlan, SArray* pExecNo
 // Set datasource of this subplan, multiple calls may be made to a subplan.
 // @pSubplan subplan to be schedule
 // @groupId id of a group of datasource subplans of this @pSubplan
-// @pSource one execution location of this group of datasource subplans 
+// @pSource one execution location of this group of datasource subplans
 int32_t qSetSubplanExecutionNode(SSubplan* pSubplan, int32_t groupId, SDownstreamSourceNode* pSource);
 
 int32_t qStmtBindParam(SQueryPlan* pPlan, TAOS_MULTI_BIND* pParams, int32_t colIdx, uint64_t queryId);
@@ -56,7 +54,7 @@ int32_t qStmtBindParam(SQueryPlan* pPlan, TAOS_MULTI_BIND* pParams, int32_t colI
 int32_t qSubPlanToString(const SSubplan* pSubplan, char** pStr, int32_t* pLen);
 int32_t qStringToSubplan(const char* pStr, SSubplan** pSubplan);
 
-char* qQueryPlanToString(const SQueryPlan* pPlan);
+char*       qQueryPlanToString(const SQueryPlan* pPlan);
 SQueryPlan* qStringToQueryPlan(const char* pStr);
 
 void qDestroyQueryPlan(SQueryPlan* pPlan);

include/util/taoserror.h

@@ -632,6 +632,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_PAR_INVALID_FIRST_COLUMN      TAOS_DEF_ERROR_CODE(0, 0x2641)
 #define TSDB_CODE_PAR_INVALID_VAR_COLUMN_LEN    TAOS_DEF_ERROR_CODE(0, 0x2642)
 #define TSDB_CODE_PAR_INVALID_TAGS_NUM          TAOS_DEF_ERROR_CODE(0, 0x2643)
+#define TSDB_CODE_PAR_PERMISSION_DENIED         TAOS_DEF_ERROR_CODE(0, 0x2644)
 
 //planner
 #define TSDB_CODE_PLAN_INTERNAL_ERROR           TAOS_DEF_ERROR_CODE(0, 0x2700)

source/client/src/clientImpl.c

@@ -162,18 +162,17 @@ int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj*
 int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery, SStmtCallback* pStmtCb) {
   STscObj* pTscObj = pRequest->pTscObj;
 
-  SParseContext cxt = {
-      .requestId = pRequest->requestId,
-      .acctId = pTscObj->acctId,
-      .db = pRequest->pDb,
-      .topicQuery = topicQuery,
-      .pSql = pRequest->sqlstr,
-      .sqlLen = pRequest->sqlLen,
-      .pMsg = pRequest->msgBuf,
-      .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
-      .pTransporter = pTscObj->pAppInfo->pTransporter,
-      .pStmtCb = pStmtCb,
-  };
+  SParseContext cxt = {.requestId = pRequest->requestId,
+                       .acctId = pTscObj->acctId,
+                       .db = pRequest->pDb,
+                       .topicQuery = topicQuery,
+                       .pSql = pRequest->sqlstr,
+                       .sqlLen = pRequest->sqlLen,
+                       .pMsg = pRequest->msgBuf,
+                       .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
+                       .pTransporter = pTscObj->pAppInfo->pTransporter,
+                       .pStmtCb = pStmtCb,
+                       .pUser = pTscObj->user};
 
   cxt.mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
   int32_t code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
@@ -232,11 +231,15 @@ int32_t getPlan(SRequestObj* pRequest, SQuery* pQuery, SQueryPlan** pPlan, SArra
                       .mgmtEpSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp),
                       .pAstRoot = pQuery->pRoot,
                       .showRewrite = pQuery->showRewrite,
-                      .pTransporter = pRequest->pTscObj->pAppInfo->pTransporter,
                       .pMsg = pRequest->msgBuf,
                       .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
                       .placeholderNum = pQuery->placeholderNum};
-  int32_t      code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
+  SEpSet       mgmtEpSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp);
+  SCatalog*    pCatalog = NULL;
+  int32_t      code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &pCatalog);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = catalogGetQnodeList(pCatalog, pRequest->pTscObj->pAppInfo->pTransporter, &mgmtEpSet, pNodeList);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     code = qCreateQueryPlan(&cxt, pPlan, pNodeList);
   }

source/dnode/mnode/impl/src/mndUser.c

@@ -412,7 +412,7 @@ static int32_t mndProcessAlterUserReq(SNodeMsg *pReq) {
     goto _OVER;
   }
 
-  if (alterReq.pass[0] == 0) {
+  if (TSDB_ALTER_USER_PASSWD == alterReq.alterType && alterReq.pass[0] == 0) {
     terrno = TSDB_CODE_MND_INVALID_PASS_FORMAT;
     goto _OVER;
   }

source/libs/nodes/src/nodesUtilFuncs.c

@@ -112,6 +112,8 @@ SNodeptr nodesMakeNode(ENodeType type) {
       return makeNode(type, sizeof(SDropTableStmt));
     case QUERY_NODE_DROP_SUPER_TABLE_STMT:
       return makeNode(type, sizeof(SDropSuperTableStmt));
+    case QUERY_NODE_ALTER_TABLE_STMT:
+      return makeNode(type, sizeof(SAlterTableStmt));
     case QUERY_NODE_CREATE_USER_STMT:
       return makeNode(type, sizeof(SCreateUserStmt));
     case QUERY_NODE_ALTER_USER_STMT:
@@ -155,7 +157,7 @@ SNodeptr nodesMakeNode(ENodeType type) {
     case QUERY_NODE_CREATE_FUNCTION_STMT:
       return makeNode(type, sizeof(SCreateFunctionStmt));
     case QUERY_NODE_DROP_FUNCTION_STMT:
-      break;
+      return makeNode(type, sizeof(SDropFunctionStmt));
     case QUERY_NODE_CREATE_STREAM_STMT:
       return makeNode(type, sizeof(SCreateStreamStmt));
     case QUERY_NODE_DROP_STREAM_STMT:
@@ -165,6 +167,10 @@ SNodeptr nodesMakeNode(ENodeType type) {
     case QUERY_NODE_SPLIT_VGROUP_STMT:
     case QUERY_NODE_SYNCDB_STMT:
       break;
+    case QUERY_NODE_GRANT_STMT:
+      return makeNode(type, sizeof(SGrantStmt));
+    case QUERY_NODE_REVOKE_STMT:
+      return makeNode(type, sizeof(SRevokeStmt));
     case QUERY_NODE_SHOW_DNODES_STMT:
     case QUERY_NODE_SHOW_MNODES_STMT:
     case QUERY_NODE_SHOW_MODULES_STMT:
@@ -195,9 +201,11 @@ SNodeptr nodesMakeNode(ENodeType type) {
     case QUERY_NODE_SHOW_CREATE_DATABASE_STMT:
     case QUERY_NODE_SHOW_CREATE_TABLE_STMT:
     case QUERY_NODE_SHOW_CREATE_STABLE_STMT:
+    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
       return makeNode(type, sizeof(SShowStmt));
     case QUERY_NODE_KILL_CONNECTION_STMT:
     case QUERY_NODE_KILL_QUERY_STMT:
+    case QUERY_NODE_KILL_TRANSACTION_STMT:
       return makeNode(type, sizeof(SKillStmt));
     case QUERY_NODE_LOGIC_PLAN_SCAN:
       return makeNode(type, sizeof(SScanLogicNode));

source/libs/parser/inc/parAst.h

@@ -178,7 +178,7 @@ SNode* createResetQueryCacheStmt(SAstCreateContext* pCxt);
 SNode* createCompactStmt(SAstCreateContext* pCxt, SNodeList* pVgroups);
 SNode* createCreateFunctionStmt(SAstCreateContext* pCxt, bool ignoreExists, bool aggFunc, const SToken* pFuncName,
                                 const SToken* pLibPath, SDataType dataType, int32_t bufSize);
-SNode* createDropFunctionStmt(SAstCreateContext* pCxt, const SToken* pFuncName);
+SNode* createDropFunctionStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pFuncName);
 SNode* createStreamOptions(SAstCreateContext* pCxt);
 SNode* createCreateStreamStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pStreamName, SNode* pRealTable,
                               SNode* pOptions, SNode* pQuery);
@@ -188,6 +188,8 @@ SNode* createMergeVgroupStmt(SAstCreateContext* pCxt, const SToken* pVgId1, cons
 SNode* createRedistributeVgroupStmt(SAstCreateContext* pCxt, const SToken* pVgId, SNodeList* pDnodes);
 SNode* createSplitVgroupStmt(SAstCreateContext* pCxt, const SToken* pVgId);
 SNode* createSyncdbStmt(SAstCreateContext* pCxt, const SToken* pDbName);
+SNode* createGrantStmt(SAstCreateContext* pCxt, int64_t privileges, SToken* pDbName, SToken* pUserName);
+SNode* createRevokeStmt(SAstCreateContext* pCxt, int64_t privileges, SToken* pDbName, SToken* pUserName);
 
 #ifdef __cplusplus
 }

source/libs/parser/inc/parInt.h

@@ -26,6 +26,7 @@ extern "C" {
 
 int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery);
 int32_t parse(SParseContext* pParseCxt, SQuery** pQuery);
+int32_t authenticate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t translate(SParseContext* pParseCxt, SQuery* pQuery);
 int32_t extractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema);
 int32_t calculateConstant(SParseContext* pParseCxt, SQuery* pQuery);

source/libs/parser/inc/sql.y

@@ -81,6 +81,30 @@ cmd ::= ALTER USER user_name(A) PASS NK_STRING(B).
 cmd ::= ALTER USER user_name(A) PRIVILEGE NK_STRING(B).                           { pCxt->pRootNode = createAlterUserStmt(pCxt, &A, TSDB_ALTER_USER_PRIVILEGES, &B); }
 cmd ::= DROP USER user_name(A).                                                   { pCxt->pRootNode = createDropUserStmt(pCxt, &A); }
 
+/************************************************ grant/revoke ********************************************************/
+cmd ::= GRANT privileges(A) ON priv_level(B) TO user_name(C).                     { pCxt->pRootNode = createGrantStmt(pCxt, A, &B, &C); }
+cmd ::= REVOKE privileges(A) ON priv_level(B) FROM user_name(C).                  { pCxt->pRootNode = createRevokeStmt(pCxt, A, &B, &C); }
+
+%type privileges                                                                  { int64_t }
+%destructor privileges                                                            { }
+privileges(A) ::= ALL.                                                            { A = PRIVILEGE_TYPE_ALL; }
+privileges(A) ::= priv_type_list(B).                                              { A = B; }
+
+%type priv_type_list                                                              { int64_t }
+%destructor priv_type_list                                                        { }
+priv_type_list(A) ::= priv_type(B).                                               { A = B; }
+priv_type_list(A) ::= priv_type_list(B) NK_COMMA priv_type(C).                    { A = B | C; }
+
+%type priv_type                                                                   { int64_t }
+%destructor priv_type                                                             { }
+priv_type(A) ::= READ.                                                            { A = PRIVILEGE_TYPE_READ; }
+priv_type(A) ::= WRITE.                                                           { A = PRIVILEGE_TYPE_WRITE; }
+
+%type priv_level                                                                  { SToken }
+%destructor priv_level                                                            { }
+priv_level(A) ::= NK_STAR(B) NK_DOT NK_STAR.                                      { A = B; }
+priv_level(A) ::= db_name(B) NK_DOT NK_STAR.                                      { A = B; }
+
 /************************************************ create/drop/alter dnode *********************************************/
 cmd ::= CREATE DNODE dnode_endpoint(A).                                           { pCxt->pRootNode = createCreateDnodeStmt(pCxt, &A, NULL); }
 cmd ::= CREATE DNODE dnode_host_name(A) PORT NK_INTEGER(B).                       { pCxt->pRootNode = createCreateDnodeStmt(pCxt, &A, &B); }
@@ -337,6 +361,7 @@ cmd ::= SHOW VARIABLES.
 cmd ::= SHOW BNODES.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_BNODES_STMT, NULL, NULL); }
 cmd ::= SHOW SNODES.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_SNODES_STMT, NULL, NULL); }
 cmd ::= SHOW CLUSTER.                                                             { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_CLUSTER_STMT, NULL, NULL); }
+cmd ::= SHOW TRANSACTIONS.                                                        { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_TRANSACTIONS_STMT, NULL, NULL); }
 
 db_name_cond_opt(A) ::= .                                                         { A = createDefaultDatabaseCondValue(pCxt); }
 db_name_cond_opt(A) ::= db_name(B) NK_DOT.                                        { A = createValueNode(pCxt, TSDB_DATA_TYPE_BINARY, &B); }
@@ -413,7 +438,7 @@ cmd ::= COMPACT VNODES IN NK_LP integer_list(A) NK_RP.
 /************************************************ create/drop function ************************************************/
 cmd ::= CREATE agg_func_opt(A) FUNCTION not_exists_opt(F) function_name(B) 
   AS NK_STRING(C) OUTPUTTYPE type_name(D) bufsize_opt(E).                         { pCxt->pRootNode = createCreateFunctionStmt(pCxt, F, A, &B, &C, D, E); }
-cmd ::= DROP FUNCTION function_name(A).                                           { pCxt->pRootNode = createDropFunctionStmt(pCxt, &A); }
+cmd ::= DROP FUNCTION exists_opt(B) function_name(A).                             { pCxt->pRootNode = createDropFunctionStmt(pCxt, B, &A); }
 
 %type agg_func_opt                                                                { bool }
 %destructor agg_func_opt                                                          { }
@@ -441,6 +466,7 @@ stream_options(A) ::= stream_options(B) WATERMARK duration_literal(C).
 /************************************************ kill connection/query ***********************************************/
 cmd ::= KILL CONNECTION NK_INTEGER(A).                                            { pCxt->pRootNode = createKillStmt(pCxt, QUERY_NODE_KILL_CONNECTION_STMT, &A); }
 cmd ::= KILL QUERY NK_INTEGER(A).                                                 { pCxt->pRootNode = createKillStmt(pCxt, QUERY_NODE_KILL_QUERY_STMT, &A); }
+cmd ::= KILL TRANSACTION NK_INTEGER(A).                                           { pCxt->pRootNode = createKillStmt(pCxt, QUERY_NODE_KILL_TRANSACTION_STMT, &A); }
 
 /************************************************ merge/redistribute/ vgroup ******************************************/
 cmd ::= MERGE VGROUP NK_INTEGER(A) NK_INTEGER(B).                                 { pCxt->pRootNode = createMergeVgroupStmt(pCxt, &A, &B); }

source/libs/parser/src/parAstCreater.c

@@ -363,8 +363,10 @@ SNode* createCastFunctionNode(SAstCreateContext* pCxt, SNode* pExpr, SDataType d
   CHECK_OUT_OF_MEM(func);
   strcpy(func->functionName, "cast");
   func->node.resType = dt;
-  if (TSDB_DATA_TYPE_NCHAR == dt.type) {
-    func->node.resType.bytes = func->node.resType.bytes * TSDB_NCHAR_SIZE;
+  if (TSDB_DATA_TYPE_VARCHAR == dt.type) {
+    func->node.resType.bytes = func->node.resType.bytes + VARSTR_HEADER_SIZE;
+  } else if (TSDB_DATA_TYPE_NCHAR == dt.type) {
+    func->node.resType.bytes = func->node.resType.bytes * TSDB_NCHAR_SIZE + VARSTR_HEADER_SIZE;
   }
   nodesListMakeAppend(&func->pParameterList, pExpr);
   return (SNode*)func;
@@ -1258,10 +1260,12 @@ SNode* createCreateFunctionStmt(SAstCreateContext* pCxt, bool ignoreExists, bool
   return (SNode*)pStmt;
 }
 
-SNode* createDropFunctionStmt(SAstCreateContext* pCxt, const SToken* pFuncName) {
-  SNode* pStmt = nodesMakeNode(QUERY_NODE_DROP_FUNCTION_STMT);
+SNode* createDropFunctionStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pFuncName) {
+  SDropFunctionStmt* pStmt = nodesMakeNode(QUERY_NODE_DROP_FUNCTION_STMT);
   CHECK_OUT_OF_MEM(pStmt);
-  return pStmt;
+  pStmt->ignoreNotExists = ignoreNotExists;
+  strncpy(pStmt->funcName, pFuncName->z, pFuncName->n);
+  return (SNode*)pStmt;
 }
 
 SNode* createStreamOptions(SAstCreateContext* pCxt) {
@@ -1324,3 +1328,27 @@ SNode* createSyncdbStmt(SAstCreateContext* pCxt, const SToken* pDbName) {
   CHECK_OUT_OF_MEM(pStmt);
   return pStmt;
 }
+
+SNode* createGrantStmt(SAstCreateContext* pCxt, int64_t privileges, SToken* pDbName, SToken* pUserName) {
+  if (!checkDbName(pCxt, pDbName, false) || !checkUserName(pCxt, pUserName)) {
+    return NULL;
+  }
+  SGrantStmt* pStmt = nodesMakeNode(QUERY_NODE_GRANT_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  pStmt->privileges = privileges;
+  strncpy(pStmt->dbName, pDbName->z, pDbName->n);
+  strncpy(pStmt->userName, pUserName->z, pUserName->n);
+  return (SNode*)pStmt;
+}
+
+SNode* createRevokeStmt(SAstCreateContext* pCxt, int64_t privileges, SToken* pDbName, SToken* pUserName) {
+  if (!checkDbName(pCxt, pDbName, false) || !checkUserName(pCxt, pUserName)) {
+    return NULL;
+  }
+  SRevokeStmt* pStmt = nodesMakeNode(QUERY_NODE_REVOKE_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  pStmt->privileges = privileges;
+  strncpy(pStmt->dbName, pDbName->z, pDbName->n);
+  strncpy(pStmt->userName, pUserName->z, pUserName->n);
+  return (SNode*)pStmt;
+}

source/libs/parser/src/parAuthenticator.c

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "catalog.h"
+#include "parInt.h"
+
+typedef struct SAuthCxt {
+  SParseContext* pParseCxt;
+  int32_t        errCode;
+} SAuthCxt;
+
+static int32_t authQuery(SAuthCxt* pCxt, SNode* pStmt);
+
+static int32_t checkAuth(SParseContext* pCxt, const char* dbName, AUTH_TYPE type) {
+  if (pCxt->isSuperUser) {
+    return TSDB_CODE_SUCCESS;
+  }
+  bool    pass = false;
+  int32_t code = catalogChkAuth(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pCxt->pUser, dbName, type, &pass);
+  return TSDB_CODE_SUCCESS == code ? (pass ? TSDB_CODE_SUCCESS : TSDB_CODE_PAR_PERMISSION_DENIED) : code;
+}
+
+static EDealRes authSubquery(SAuthCxt* pCxt, SNode* pStmt) {
+  return TSDB_CODE_SUCCESS == authQuery(pCxt, pStmt) ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
+}
+
+static EDealRes authSelectImpl(SNode* pNode, void* pContext) {
+  SAuthCxt* pCxt = pContext;
+  if (QUERY_NODE_REAL_TABLE == nodeType(pNode)) {
+    pCxt->errCode = checkAuth(pCxt->pParseCxt, ((SRealTableNode*)pNode)->table.dbName, AUTH_TYPE_READ);
+    return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
+  } else if (QUERY_NODE_TEMP_TABLE == nodeType(pNode)) {
+    return authSubquery(pCxt, ((STempTableNode*)pNode)->pSubquery);
+  }
+  return DEAL_RES_CONTINUE;
+}
+
+static int32_t authSelect(SAuthCxt* pCxt, SSelectStmt* pSelect) {
+  nodesWalkSelectStmt(pSelect, SQL_CLAUSE_FROM, authSelectImpl, pCxt);
+  return pCxt->errCode;
+}
+
+static int32_t authSetOperator(SAuthCxt* pCxt, SSetOperator* pSetOper) {
+  int32_t code = authQuery(pCxt, pSetOper->pLeft);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = authQuery(pCxt, pSetOper->pRight);
+  }
+  return code;
+}
+
+static int32_t authQuery(SAuthCxt* pCxt, SNode* pStmt) {
+  switch (nodeType(pStmt)) {
+    case QUERY_NODE_SET_OPERATOR:
+      return authSetOperator(pCxt, (SSetOperator*)pStmt);
+    case QUERY_NODE_SELECT_STMT:
+      return authSelect(pCxt, (SSelectStmt*)pStmt);
+    case QUERY_NODE_VNODE_MODIF_STMT:
+    case QUERY_NODE_CREATE_DATABASE_STMT:
+    case QUERY_NODE_DROP_DATABASE_STMT:
+    case QUERY_NODE_ALTER_DATABASE_STMT:
+    case QUERY_NODE_CREATE_TABLE_STMT:
+    case QUERY_NODE_CREATE_SUBTABLE_CLAUSE:
+    case QUERY_NODE_CREATE_MULTI_TABLE_STMT:
+    case QUERY_NODE_DROP_TABLE_CLAUSE:
+    case QUERY_NODE_DROP_TABLE_STMT:
+    case QUERY_NODE_DROP_SUPER_TABLE_STMT:
+    case QUERY_NODE_ALTER_TABLE_STMT:
+    case QUERY_NODE_CREATE_USER_STMT:
+    case QUERY_NODE_ALTER_USER_STMT:
+    case QUERY_NODE_DROP_USER_STMT:
+    case QUERY_NODE_USE_DATABASE_STMT:
+    case QUERY_NODE_CREATE_DNODE_STMT:
+    case QUERY_NODE_DROP_DNODE_STMT:
+    case QUERY_NODE_ALTER_DNODE_STMT:
+    case QUERY_NODE_CREATE_INDEX_STMT:
+    case QUERY_NODE_DROP_INDEX_STMT:
+    case QUERY_NODE_CREATE_QNODE_STMT:
+    case QUERY_NODE_DROP_QNODE_STMT:
+    case QUERY_NODE_CREATE_BNODE_STMT:
+    case QUERY_NODE_DROP_BNODE_STMT:
+    case QUERY_NODE_CREATE_SNODE_STMT:
+    case QUERY_NODE_DROP_SNODE_STMT:
+    case QUERY_NODE_CREATE_MNODE_STMT:
+    case QUERY_NODE_DROP_MNODE_STMT:
+    case QUERY_NODE_CREATE_TOPIC_STMT:
+    case QUERY_NODE_DROP_TOPIC_STMT:
+    case QUERY_NODE_ALTER_LOCAL_STMT:
+    case QUERY_NODE_EXPLAIN_STMT:
+    case QUERY_NODE_DESCRIBE_STMT:
+    case QUERY_NODE_RESET_QUERY_CACHE_STMT:
+    case QUERY_NODE_COMPACT_STMT:
+    case QUERY_NODE_CREATE_FUNCTION_STMT:
+    case QUERY_NODE_DROP_FUNCTION_STMT:
+    case QUERY_NODE_CREATE_STREAM_STMT:
+    case QUERY_NODE_DROP_STREAM_STMT:
+    case QUERY_NODE_MERGE_VGROUP_STMT:
+    case QUERY_NODE_REDISTRIBUTE_VGROUP_STMT:
+    case QUERY_NODE_SPLIT_VGROUP_STMT:
+    case QUERY_NODE_SYNCDB_STMT:
+    case QUERY_NODE_GRANT_STMT:
+    case QUERY_NODE_REVOKE_STMT:
+    case QUERY_NODE_SHOW_DNODES_STMT:
+    case QUERY_NODE_SHOW_MNODES_STMT:
+    case QUERY_NODE_SHOW_MODULES_STMT:
+    case QUERY_NODE_SHOW_QNODES_STMT:
+    case QUERY_NODE_SHOW_SNODES_STMT:
+    case QUERY_NODE_SHOW_BNODES_STMT:
+    case QUERY_NODE_SHOW_CLUSTER_STMT:
+    case QUERY_NODE_SHOW_DATABASES_STMT:
+    case QUERY_NODE_SHOW_FUNCTIONS_STMT:
+    case QUERY_NODE_SHOW_INDEXES_STMT:
+    case QUERY_NODE_SHOW_STABLES_STMT:
+    case QUERY_NODE_SHOW_STREAMS_STMT:
+    case QUERY_NODE_SHOW_TABLES_STMT:
+    case QUERY_NODE_SHOW_USERS_STMT:
+    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_VGROUPS_STMT:
+    case QUERY_NODE_SHOW_TOPICS_STMT:
+    case QUERY_NODE_SHOW_CONSUMERS_STMT:
+    case QUERY_NODE_SHOW_SUBSCRIBES_STMT:
+    case QUERY_NODE_SHOW_TRANS_STMT:
+    case QUERY_NODE_SHOW_SMAS_STMT:
+    case QUERY_NODE_SHOW_CONFIGS_STMT:
+    case QUERY_NODE_SHOW_CONNECTIONS_STMT:
+    case QUERY_NODE_SHOW_QUERIES_STMT:
+    case QUERY_NODE_SHOW_VNODES_STMT:
+    case QUERY_NODE_SHOW_APPS_STMT:
+    case QUERY_NODE_SHOW_SCORES_STMT:
+    case QUERY_NODE_SHOW_VARIABLE_STMT:
+    case QUERY_NODE_SHOW_CREATE_DATABASE_STMT:
+    case QUERY_NODE_SHOW_CREATE_TABLE_STMT:
+    case QUERY_NODE_SHOW_CREATE_STABLE_STMT:
+    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
+    case QUERY_NODE_KILL_CONNECTION_STMT:
+    case QUERY_NODE_KILL_QUERY_STMT:
+    case QUERY_NODE_KILL_TRANSACTION_STMT:
+    default:
+      break;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t authenticate(SParseContext* pParseCxt, SQuery* pQuery) {
+  SAuthCxt cxt = {.pParseCxt = pParseCxt, .errCode = TSDB_CODE_SUCCESS};
+  return authQuery(&cxt, pQuery->pRoot);
+}

source/libs/parser/src/parTokenizer.c

@@ -85,6 +85,7 @@ static SKeyword keywordTable[] = {
     {"FSYNC",         TK_FSYNC},
     {"FUNCTION",      TK_FUNCTION},
     {"FUNCTIONS",     TK_FUNCTIONS},
+    {"GRANT",         TK_GRANT},
     {"GRANTS",        TK_GRANTS},
     {"GROUP",         TK_GROUP},
     {"HAVING",        TK_HAVING},
@@ -147,9 +148,12 @@ static SKeyword keywordTable[] = {
     {"QUERIES",       TK_QUERIES},
     {"QUERY",         TK_QUERY},
     {"RATIO",         TK_RATIO},
+    {"READ",          TK_READ},
+    {"RENAME",        TK_RENAME},
     {"REPLICA",       TK_REPLICA},
     {"RESET",         TK_RESET},
     {"RETENTIONS",    TK_RETENTIONS},
+    {"REVOKE",        TK_REVOKE},
     {"ROLLUP",        TK_ROLLUP},
     {"SCHEMA",        TK_SCHEMA},
     {"SCORES",        TK_SCORES},
@@ -182,9 +186,12 @@ static SKeyword keywordTable[] = {
     {"TIMESTAMP",     TK_TIMESTAMP},
     {"TIMEZONE",      TK_TIMEZONE},
     {"TINYINT",       TK_TINYINT},
+    {"TO",            TK_TO},
     {"TODAY",         TK_TODAY},
     {"TOPIC",         TK_TOPIC},
     {"TOPICS",        TK_TOPICS},
+    {"TRANSACTION",   TK_TRANSACTION},
+    {"TRANSACTIONS",  TK_TRANSACTIONS},
     {"TRIGGER",       TK_TRIGGER},
     {"TSERIES",       TK_TSERIES},
     {"TTL",           TK_TTL},
@@ -206,6 +213,7 @@ static SKeyword keywordTable[] = {
     {"WHERE",         TK_WHERE},
     {"WINDOW_CLOSE",  TK_WINDOW_CLOSE},
     {"WITH",          TK_WITH},
+    {"WRITE",         TK_WRITE},
     {"_QENDTS",       TK_QENDTS},
     {"_QSTARTTS",     TK_QSTARTTS},
     {"_ROWTS",        TK_ROWTS},
@@ -471,7 +479,7 @@ uint32_t tGetToken(const char* z, uint32_t* tokenId) {
       int  delim = z[0];
       bool strEnd = false;
       for (i = 1; z[i]; i++) {
-        if (z[i] == '\\') {  // ignore the escaped character that follows this backslash
+        if (delim != '`' && z[i] == '\\') {  // ignore the escaped character that follows this backslash
           i++;
           continue;
         }

source/libs/parser/src/parTranslater.c

@@ -2629,6 +2629,7 @@ static int32_t setAlterTableField(SAlterTableStmt* pStmt, SMAlterStbReq* pAlterR
       break;
   }
 
+  pAlterReq->numOfFields = taosArrayGetSize(pAlterReq->pFields);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -2637,9 +2638,8 @@ static int32_t translateAlterTable(STranslateContext* pCxt, SAlterTableStmt* pSt
   SName         tableName;
   tNameExtractFullName(toName(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, &tableName), alterReq.name);
   alterReq.alterType = pStmt->alterType;
-  alterReq.numOfFields = 1;
-  if (TSDB_ALTER_TABLE_UPDATE_OPTIONS == pStmt->alterType) {
-    // todo
+  if (TSDB_ALTER_TABLE_UPDATE_OPTIONS == pStmt->alterType || TSDB_ALTER_TABLE_UPDATE_TAG_VAL == pStmt->alterType) {
+    return TSDB_CODE_FAILED;
   } else {
     if (TSDB_CODE_SUCCESS != setAlterTableField(pStmt, &alterReq)) {
       return TSDB_CODE_OUT_OF_MEMORY;
@@ -3023,6 +3023,12 @@ static int32_t translateKillQuery(STranslateContext* pCxt, SKillStmt* pStmt) {
   return buildCmdMsg(pCxt, TDMT_MND_KILL_QUERY, (FSerializeFunc)tSerializeSKillQueryReq, &killReq);
 }
 
+static int32_t translateKillTransaction(STranslateContext* pCxt, SKillStmt* pStmt) {
+  SKillTransReq killReq = {0};
+  killReq.transId = pStmt->targetId;
+  return buildCmdMsg(pCxt, TDMT_MND_KILL_TRANS, (FSerializeFunc)tSerializeSKillTransReq, &killReq);
+}
+
 static int32_t translateCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pStmt) {
   SCMCreateStreamReq createReq = {0};
 
@@ -3121,6 +3127,38 @@ static int32_t translateCreateFunction(STranslateContext* pCxt, SCreateFunctionS
   return code;
 }
 
+static int32_t translateGrant(STranslateContext* pCxt, SGrantStmt* pStmt) {
+  SAlterUserReq req = {0};
+  if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_ALL) ||
+      (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_READ) &&
+       PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_WRITE))) {
+    req.alterType = TSDB_ALTER_USER_ADD_ALL_DB;
+  } else if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_READ)) {
+    req.alterType = TSDB_ALTER_USER_ADD_READ_DB;
+  } else if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_WRITE)) {
+    req.alterType = TSDB_ALTER_USER_ADD_WRITE_DB;
+  }
+  strcpy(req.user, pStmt->userName);
+  strcpy(req.dbname, pStmt->dbName);
+  return buildCmdMsg(pCxt, TDMT_MND_ALTER_USER, (FSerializeFunc)tSerializeSAlterUserReq, &req);
+}
+
+static int32_t translateRevoke(STranslateContext* pCxt, SRevokeStmt* pStmt) {
+  SAlterUserReq req = {0};
+  if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_ALL) ||
+      (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_READ) &&
+       PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_WRITE))) {
+    req.alterType = TSDB_ALTER_USER_REMOVE_ALL_DB;
+  } else if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_READ)) {
+    req.alterType = TSDB_ALTER_USER_REMOVE_READ_DB;
+  } else if (PRIVILEGE_TYPE_TEST_MASK(pStmt->privileges, PRIVILEGE_TYPE_WRITE)) {
+    req.alterType = TSDB_ALTER_USER_REMOVE_WRITE_DB;
+  }
+  strcpy(req.user, pStmt->userName);
+  strcpy(req.dbname, pStmt->dbName);
+  return buildCmdMsg(pCxt, TDMT_MND_ALTER_USER, (FSerializeFunc)tSerializeSAlterUserReq, &req);
+}
+
 static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
   int32_t code = TSDB_CODE_SUCCESS;
   switch (nodeType(pNode)) {
@@ -3216,6 +3254,9 @@ static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
     case QUERY_NODE_KILL_QUERY_STMT:
       code = translateKillQuery(pCxt, (SKillStmt*)pNode);
       break;
+    case QUERY_NODE_KILL_TRANSACTION_STMT:
+      code = translateKillTransaction(pCxt, (SKillStmt*)pNode);
+      break;
     case QUERY_NODE_CREATE_STREAM_STMT:
       code = translateCreateStream(pCxt, (SCreateStreamStmt*)pNode);
       break;
@@ -3225,6 +3266,12 @@ static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
     case QUERY_NODE_CREATE_FUNCTION_STMT:
       code = translateCreateFunction(pCxt, (SCreateFunctionStmt*)pNode);
       break;
+    case QUERY_NODE_GRANT_STMT:
+      code = translateGrant(pCxt, (SGrantStmt*)pNode);
+      break;
+    case QUERY_NODE_REVOKE_STMT:
+      code = translateRevoke(pCxt, (SRevokeStmt*)pNode);
+      break;
     default:
       break;
   }
@@ -3345,6 +3392,7 @@ static const char* getSysDbName(ENodeType type) {
     case QUERY_NODE_SHOW_CONNECTIONS_STMT:
     case QUERY_NODE_SHOW_QUERIES_STMT:
     case QUERY_NODE_SHOW_TOPICS_STMT:
+    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
       return TSDB_PERFORMANCE_SCHEMA_DB;
     default:
       break;
@@ -3392,6 +3440,8 @@ static const char* getSysTableName(ENodeType type) {
       return TSDB_PERFS_TABLE_QUERIES;
     case QUERY_NODE_SHOW_TOPICS_STMT:
       return TSDB_PERFS_TABLE_TOPICS;
+    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
+      return TSDB_PERFS_TABLE_TRANS;
     default:
       break;
   }

source/libs/parser/src/parser.c

@@ -36,6 +36,9 @@ bool isInsertSql(const char* pStr, size_t length) {
 
 static int32_t parseSqlIntoAst(SParseContext* pCxt, SQuery** pQuery) {
   int32_t code = parse(pCxt, pQuery);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = authenticate(pCxt, *pQuery);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     code = translate(pCxt, *pQuery);
   }

source/libs/parser/test/mockCatalog.cpp

@@ -181,6 +181,12 @@ int32_t __catalogGetDBCfg(SCatalog* pCtg, void* pRpc, const SEpSet* pMgmtEps, co
   return 0;
 }
 
+int32_t __catalogChkAuth(SCatalog* pCtg, void* pRpc, const SEpSet* pMgmtEps, const char* user, const char* dbFName,
+                         AUTH_TYPE type, bool* pass) {
+  *pass = true;
+  return 0;
+}
+
 void initMetaDataEnv() {
   mockCatalogService.reset(new MockCatalogService());
 
@@ -193,6 +199,7 @@ void initMetaDataEnv() {
   stub.set(catalogGetDBVgVersion, __catalogGetDBVgVersion);
   stub.set(catalogGetDBVgInfo, __catalogGetDBVgInfo);
   stub.set(catalogGetDBCfg, __catalogGetDBCfg);
+  stub.set(catalogChkAuth, __catalogChkAuth);
   // {
   //   AddrAny any("libcatalog.so");
   //   std::map<std::string,void*> result;

source/libs/parser/test/parExplainToSyncdbTest.cpp

@@ -24,11 +24,20 @@ class ParserExplainToSyncdbTest : public ParserTestBase {};
 TEST_F(ParserExplainToSyncdbTest, explain) {
   useDb("root", "test");
 
-  run("explain SELECT * FROM t1");
+  run("EXPLAIN SELECT * FROM t1");
 
-  run("explain analyze SELECT * FROM t1");
+  run("EXPLAIN ANALYZE SELECT * FROM t1");
 
-  run("explain analyze verbose true ratio 0.01 SELECT * FROM t1");
+  run("EXPLAIN ANALYZE VERBOSE true RATIO 0.01 SELECT * FROM t1");
+}
+
+TEST_F(ParserExplainToSyncdbTest, grant) {
+  useDb("root", "test");
+
+  run("GRANT ALL ON test.* TO wxy");
+  run("GRANT READ ON test.* TO wxy");
+  run("GRANT WRITE ON test.* TO wxy");
+  run("GRANT READ, WRITE ON test.* TO wxy");
 }
 
 // todo kill connection
@@ -37,6 +46,16 @@ TEST_F(ParserExplainToSyncdbTest, explain) {
 // todo merge vgroup
 // todo redistribute vgroup
 // todo reset query cache
+
+TEST_F(ParserExplainToSyncdbTest, revoke) {
+  useDb("root", "test");
+
+  run("REVOKE ALL ON test.* FROM wxy");
+  run("REVOKE READ ON test.* FROM wxy");
+  run("REVOKE WRITE ON test.* FROM wxy");
+  run("REVOKE READ, WRITE ON test.* FROM wxy");
+}
+
 // todo syncdb
 
 }  // namespace ParserTest

source/libs/parser/test/parInitialATest.cpp

@@ -24,39 +24,84 @@ class ParserInitialATest : public ParserTestBase {};
 TEST_F(ParserInitialATest, alterAccount) {
   useDb("root", "test");
 
-  run("alter account ac_wxy pass '123456'", TSDB_CODE_PAR_EXPRIE_STATEMENT);
+  run("ALTER ACCOUNT ac_wxy PASS '123456'", TSDB_CODE_PAR_EXPRIE_STATEMENT);
 }
 
 TEST_F(ParserInitialATest, alterDnode) {
   useDb("root", "test");
 
-  run("alter dnode 1 'resetLog'");
+  run("ALTER DNODE 1 'resetLog'");
 
-  run("alter dnode 1 'debugFlag' '134'");
+  run("ALTER DNODE 1 'debugFlag' '134'");
 }
 
 TEST_F(ParserInitialATest, alterDatabase) {
   useDb("root", "test");
 
-  run("alter database wxy_db cachelast 1 fsync 200 wal 1");
+  run("ALTER DATABASE wxy_db CACHELAST 1 FSYNC 200 WAL 1");
 }
 
-// todo alter local
-// todo alter stable
-// todo alter table
+// todo ALTER local
+// todo ALTER stable
+
+/*
+ * ALTER TABLE [db_name.]tb_name alter_table_clause
+ *
+ * alter_table_clause: {
+ *     alter_table_options
+ *   | ADD COLUMN col_name column_type
+ *   | DROP COLUMN col_name
+ *   | MODIFY COLUMN col_name column_type
+ *   | RENAME COLUMN old_col_name new_col_name
+ *   | ADD TAG tag_name tag_type
+ *   | DROP TAG tag_name
+ *   | MODIFY TAG tag_name tag_type
+ *   | RENAME TAG old_tag_name new_tag_name
+ *   | SET TAG tag_name = new_tag_value
+ *   | ADD {FULLTEXT | SMA} INDEX index_name (col_name [, col_name] ...) [index_option]
+ * }
+ *
+ * alter_table_options:
+ *     alter_table_option ...
+ *
+ * alter_table_option: {
+ *     TTL value
+ *   | COMMENT 'string_value'
+ * }
+ */
+TEST_F(ParserInitialATest, alterTable) {
+  useDb("root", "test");
+
+  // run("ALTER TABLE t1 TTL 10");
+  // run("ALTER TABLE t1 COMMENT 'test'");
+  run("ALTER TABLE t1 ADD COLUMN cc1 BIGINT");
+  run("ALTER TABLE t1 DROP COLUMN c1");
+  run("ALTER TABLE t1 MODIFY COLUMN c1 VARCHAR(20)");
+  run("ALTER TABLE t1 RENAME COLUMN c1 cc1");
+
+  run("ALTER TABLE st1 ADD TAG tag11 BIGINT");
+  run("ALTER TABLE st1 DROP TAG tag1");
+  run("ALTER TABLE st1 MODIFY TAG tag1 VARCHAR(20)");
+  run("ALTER TABLE st1 RENAME TAG tag1 tag11");
+
+  // run("ALTER TABLE st1s1 SET TAG tag1=10");
+
+  // todo
+  // ADD {FULLTEXT | SMA} INDEX index_name (col_name [, col_name] ...) [index_option]
+}
 
 TEST_F(ParserInitialATest, alterUser) {
   useDb("root", "test");
 
-  run("alter user wxy pass '123456'");
+  run("ALTER user wxy PASS '123456'");
 
-  run("alter user wxy privilege 'write'");
+  run("ALTER user wxy privilege 'write'");
 }
 
 TEST_F(ParserInitialATest, bug001) {
   useDb("root", "test");
 
-  run("alter database db wal 0     # td-14436", TSDB_CODE_PAR_SYNTAX_ERROR);
+  run("ALTER DATABASE db WAL 0     # td-14436", TSDB_CODE_PAR_SYNTAX_ERROR);
 }
 
 }  // namespace ParserTest
\ No newline at end of file

source/libs/parser/test/parShowToUse.cpp

@@ -21,111 +21,117 @@ namespace ParserTest {
 
 class ParserShowToUseTest : public ParserTestBase {};
 
-// todo show accounts
-// todo show apps
-// todo show connections
-// todo show create database
-// todo show create stable
-// todo show create table
+// todo SHOW accounts
+// todo SHOW apps
+// todo SHOW connections
+// todo SHOW create database
+// todo SHOW create stable
+// todo SHOW create table
 
 TEST_F(ParserShowToUseTest, showDatabases) {
   useDb("root", "test");
 
-  run("show databases");
+  run("SHOW databases");
 }
 
 TEST_F(ParserShowToUseTest, showDnodes) {
   useDb("root", "test");
 
-  run("show dnodes");
+  run("SHOW dnodes");
 }
 
 TEST_F(ParserShowToUseTest, showFunctions) {
   useDb("root", "test");
 
-  run("show functions");
+  run("SHOW functions");
 }
 
-// todo show licence
+// todo SHOW licence
 
 TEST_F(ParserShowToUseTest, showIndexes) {
   useDb("root", "test");
 
-  run("show indexes from t1");
+  run("SHOW indexes from t1");
 
-  run("show indexes from t1 from test");
+  run("SHOW indexes from t1 from test");
 }
 
 TEST_F(ParserShowToUseTest, showMnodes) {
   useDb("root", "test");
 
-  run("show mnodes");
+  run("SHOW mnodes");
 }
 
 TEST_F(ParserShowToUseTest, showModules) {
   useDb("root", "test");
 
-  run("show modules");
+  run("SHOW modules");
 }
 
 TEST_F(ParserShowToUseTest, showQnodes) {
   useDb("root", "test");
 
-  run("show qnodes");
+  run("SHOW qnodes");
 }
 
-// todo show queries
-// todo show scores
+// todo SHOW queries
+// todo SHOW scores
 
 TEST_F(ParserShowToUseTest, showStables) {
   useDb("root", "test");
 
-  run("show stables");
+  run("SHOW stables");
 
-  run("show test.stables");
+  run("SHOW test.stables");
 
-  run("show stables like 'c%'");
+  run("SHOW stables like 'c%'");
 
-  run("show test.stables like 'c%'");
+  run("SHOW test.stables like 'c%'");
 }
 
 TEST_F(ParserShowToUseTest, showStreams) {
   useDb("root", "test");
 
-  run("show streams");
+  run("SHOW streams");
+}
+
+TEST_F(ParserShowToUseTest, showTransactions) {
+  useDb("root", "test");
+
+  run("SHOW TRANSACTIONS");
 }
 
 TEST_F(ParserShowToUseTest, showTables) {
   useDb("root", "test");
 
-  run("show tables");
+  run("SHOW tables");
 
-  run("show test.tables");
+  run("SHOW test.tables");
 
-  run("show tables like 'c%'");
+  run("SHOW tables like 'c%'");
 
-  run("show test.tables like 'c%'");
+  run("SHOW test.tables like 'c%'");
 }
 
-// todo show topics
+// todo SHOW topics
 
 TEST_F(ParserShowToUseTest, showUsers) {
   useDb("root", "test");
 
-  run("show users");
+  run("SHOW users");
 }
 
-// todo show variables
+// todo SHOW variables
 
 TEST_F(ParserShowToUseTest, showVgroups) {
   useDb("root", "test");
 
-  run("show vgroups");
+  run("SHOW vgroups");
 
-  run("show test.vgroups");
+  run("SHOW test.vgroups");
 }
 
-// todo show vnodes
+// todo SHOW vnodes
 
 // todo split vgroup
 

source/libs/planner/src/planPhysiCreater.c

@@ -1333,13 +1333,11 @@ int32_t createPhysiPlan(SPlanContext* pCxt, SQueryLogicPlan* pLogicPlan, SQueryP
     return TSDB_CODE_OUT_OF_MEMORY;
   }
 
-  int32_t code = TSDB_CODE_SUCCESS;
-  if (tsQueryPolicy > QUERY_POLICY_VNODE) {
-    code = catalogGetQnodeList(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pExecNodeList);
-  }
-  if (TSDB_CODE_SUCCESS == code) {
-    code = doCreatePhysiPlan(&cxt, pLogicPlan, pPlan);
+  if (QUERY_POLICY_VNODE == tsQueryPolicy) {
+    taosArrayClear(pExecNodeList);
   }
+
+  int32_t code = doCreatePhysiPlan(&cxt, pLogicPlan, pPlan);
   if (TSDB_CODE_SUCCESS == code) {
     setExplainInfo(pCxt, *pPlan);
   }

source/libs/planner/test/planSTableTest.cpp

@@ -19,10 +19,16 @@ using namespace std;
 
 class PlanSuperTableTest : public PlannerTestBase {};
 
-TEST_F(PlanSuperTableTest, tbname) {
+TEST_F(PlanSuperTableTest, pseudoCol) {
   useDb("root", "test");
 
-  run("select tbname from st1");
+  run("SELECT TBNAME FROM st1");
 
-  run("select tbname, tag1, tag2 from st1");
+  run("SELECT TBNAME, tag1, tag2 FROM st1");
+}
+
+TEST_F(PlanSuperTableTest, orderBy) {
+  useDb("root", "test");
+
+  run("SELECT -1*c1, c1 FROM st1 ORDER BY -1*c1");
 }

source/util/src/terror.c

@@ -448,6 +448,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_QW_MSG_ERROR,                 "Invalid msg order")
 
 // parser
 TAOS_DEFINE_ERROR(TSDB_CODE_PAR_TABLE_NOT_EXIST,          "Table does not exist")
+TAOS_DEFINE_ERROR(TSDB_CODE_PAR_PERMISSION_DENIED,        "Permission denied")
 
 //planner
 TAOS_DEFINE_ERROR(TSDB_CODE_PLAN_INTERNAL_ERROR,          "planner internal error")

tests/script/tsim/user/pass_alter.sim

@@ -4,11 +4,11 @@ system sh/exec.sh -n dnode1 -s start
 sql connect
 
 print ============= step1
-sql create user read pass 'taosdata1'
-sql create user write pass 'taosdata1'
+sql create user u_read pass 'taosdata1'
+sql create user u_write pass 'taosdata1'
 
-sql alter user read pass 'taosdata'
-sql alter user write pass 'taosdata'
+sql alter user u_read pass 'taosdata'
+sql alter user u_write pass 'taosdata'
 
 sql show users
 if $rows != 3 then 
@@ -18,10 +18,10 @@ endi
 print ============= step2
 sql close
 sleep 2500
-print user read login
-sql connect read
-sql alter user read pass 'taosdata'
-sql alter user write pass 'taosdata1' -x step2
+print user u_read login
+sql connect u_read
+sql alter user u_read pass 'taosdata'
+sql alter user u_write pass 'taosdata1' -x step2
   return -1
 step2:
 
@@ -36,13 +36,13 @@ endi
 print ============= step3
 sql close
 sleep 2500
-print user write login
-sql connect write
+print user u_write login
+sql connect u_write
 
 sql_error create user read2 pass 'taosdata1'
 sql_error create user write2 pass 'taosdata1'
-sql alter user write pass 'taosdata'
-sql alter user read pass 'taosdata' -x step3
+sql alter user u_write pass 'taosdata'
+sql alter user u_read pass 'taosdata' -x step3
   return -1
 step3: