Merge pull request #10771 from taosdata/feature/3.0_wxy

TD-13597 create/drop topic, alter database, drop index, drop qnode statement implement

include/common/tmsg.h

@@ -1157,8 +1157,8 @@ typedef struct {
   char   name[TSDB_TOPIC_FNAME_LEN];
   int8_t igExists;
   char*  sql;
-  char*  physicalPlan;
-  char*  logicalPlan;
+  char*  ast;
+  char   subscribeDbName[TSDB_DB_NAME_LEN];
 } SCMCreateTopicReq;
 
 int32_t tSerializeSCMCreateTopicReq(void* buf, int32_t bufLen, const SCMCreateTopicReq* pReq);

include/common/ttokendef.h

@@ -108,53 +108,54 @@
 #define TK_FULLTEXT                        90
 #define TK_FUNCTION                        91
 #define TK_INTERVAL                        92
-#define TK_MNODES                          93
-#define TK_NK_FLOAT                        94
-#define TK_NK_BOOL                         95
-#define TK_NK_VARIABLE                     96
-#define TK_BETWEEN                         97
-#define TK_IS                              98
-#define TK_NULL                            99
-#define TK_NK_LT                          100
-#define TK_NK_GT                          101
-#define TK_NK_LE                          102
-#define TK_NK_GE                          103
-#define TK_NK_NE                          104
-#define TK_NK_EQ                          105
-#define TK_LIKE                           106
-#define TK_MATCH                          107
-#define TK_NMATCH                         108
-#define TK_IN                             109
-#define TK_FROM                           110
-#define TK_AS                             111
-#define TK_JOIN                           112
-#define TK_INNER                          113
-#define TK_SELECT                         114
-#define TK_DISTINCT                       115
-#define TK_WHERE                          116
-#define TK_PARTITION                      117
-#define TK_BY                             118
-#define TK_SESSION                        119
-#define TK_STATE_WINDOW                   120
-#define TK_SLIDING                        121
-#define TK_FILL                           122
-#define TK_VALUE                          123
-#define TK_NONE                           124
-#define TK_PREV                           125
-#define TK_LINEAR                         126
-#define TK_NEXT                           127
-#define TK_GROUP                          128
-#define TK_HAVING                         129
-#define TK_ORDER                          130
-#define TK_SLIMIT                         131
-#define TK_SOFFSET                        132
-#define TK_LIMIT                          133
-#define TK_OFFSET                         134
-#define TK_ASC                            135
-#define TK_DESC                           136
-#define TK_NULLS                          137
-#define TK_FIRST                          138
-#define TK_LAST                           139
+#define TK_TOPIC                           93
+#define TK_AS                              94
+#define TK_MNODES                          95
+#define TK_NK_FLOAT                        96
+#define TK_NK_BOOL                         97
+#define TK_NK_VARIABLE                     98
+#define TK_BETWEEN                         99
+#define TK_IS                             100
+#define TK_NULL                           101
+#define TK_NK_LT                          102
+#define TK_NK_GT                          103
+#define TK_NK_LE                          104
+#define TK_NK_GE                          105
+#define TK_NK_NE                          106
+#define TK_NK_EQ                          107
+#define TK_LIKE                           108
+#define TK_MATCH                          109
+#define TK_NMATCH                         110
+#define TK_IN                             111
+#define TK_FROM                           112
+#define TK_JOIN                           113
+#define TK_INNER                          114
+#define TK_SELECT                         115
+#define TK_DISTINCT                       116
+#define TK_WHERE                          117
+#define TK_PARTITION                      118
+#define TK_BY                             119
+#define TK_SESSION                        120
+#define TK_STATE_WINDOW                   121
+#define TK_SLIDING                        122
+#define TK_FILL                           123
+#define TK_VALUE                          124
+#define TK_NONE                           125
+#define TK_PREV                           126
+#define TK_LINEAR                         127
+#define TK_NEXT                           128
+#define TK_GROUP                          129
+#define TK_HAVING                         130
+#define TK_ORDER                          131
+#define TK_SLIMIT                         132
+#define TK_SOFFSET                        133
+#define TK_LIMIT                          134
+#define TK_OFFSET                         135
+#define TK_ASC                            136
+#define TK_DESC                           137
+#define TK_NULLS                          138
+#define TK_FIRST                          139
+#define TK_LAST                           140
 
 #define TK_NK_SPACE                       300
 #define TK_NK_COMMENT                     301

include/libs/nodes/cmdnodes.h

@@ -61,6 +61,12 @@ typedef struct SDropDatabaseStmt {
   bool ignoreNotExists;
 } SDropDatabaseStmt;
 
+typedef struct SAlterDatabaseStmt {
+  ENodeType type;
+  char dbName[TSDB_DB_NAME_LEN];
+  SDatabaseOptions* pOptions;
+} SAlterDatabaseStmt;
+
 typedef struct STableOptions {
   ENodeType type;
   int32_t keep;
@@ -179,11 +185,36 @@ typedef struct SCreateIndexStmt {
   SIndexOptions* pOptions;
 } SCreateIndexStmt;
 
+typedef struct SDropIndexStmt {
+  ENodeType type;
+  char indexName[TSDB_INDEX_NAME_LEN];
+  char tableName[TSDB_TABLE_NAME_LEN];
+} SDropIndexStmt;
+
 typedef struct SCreateQnodeStmt {
   ENodeType type;
   int32_t dnodeId;
 } SCreateQnodeStmt;
 
+typedef struct SDropQnodeStmt {
+  ENodeType type;
+  int32_t dnodeId;
+} SDropQnodeStmt;
+
+typedef struct SCreateTopicStmt {
+  ENodeType type;
+  char topicName[TSDB_TABLE_NAME_LEN];
+  char subscribeDbName[TSDB_DB_NAME_LEN];
+  bool ignoreExists;
+  SNode* pQuery;
+} SCreateTopicStmt;
+
+typedef struct SDropTopicStmt {
+  ENodeType type;
+  char topicName[TSDB_TABLE_NAME_LEN];
+  bool ignoreNotExists;
+} SDropTopicStmt;
+
 #ifdef __cplusplus
 }
 #endif

include/libs/nodes/nodes.h

@@ -77,6 +77,7 @@ typedef enum ENodeType {
   QUERY_NODE_VNODE_MODIF_STMT,
   QUERY_NODE_CREATE_DATABASE_STMT,
   QUERY_NODE_DROP_DATABASE_STMT,
+  QUERY_NODE_ALTER_DATABASE_STMT,
   QUERY_NODE_SHOW_DATABASES_STMT, // temp
   QUERY_NODE_CREATE_TABLE_STMT,
   QUERY_NODE_CREATE_SUBTABLE_CLAUSE,
@@ -98,7 +99,11 @@ typedef enum ENodeType {
   QUERY_NODE_SHOW_MNODES_STMT,
   QUERY_NODE_SHOW_QNODES_STMT,
   QUERY_NODE_CREATE_INDEX_STMT,
+  QUERY_NODE_DROP_INDEX_STMT,
   QUERY_NODE_CREATE_QNODE_STMT,
+  QUERY_NODE_DROP_QNODE_STMT,
+  QUERY_NODE_CREATE_TOPIC_STMT,
+  QUERY_NODE_DROP_TOPIC_STMT,
 
   // logic plan node
   QUERY_NODE_LOGIC_PLAN_SCAN,

source/client/src/tmq.c

@@ -482,7 +482,7 @@ TAOS_RES* tmq_create_topic(TAOS* taos, const char* topicName, const char* sql, i
   }
 
   tscDebug("start to create topic, %s", topicName);
-
+#if 0
   CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
   CHECK_CODE_GOTO(parseSql(pRequest, &pQueryNode), _return);
 
@@ -536,7 +536,7 @@ TAOS_RES* tmq_create_topic(TAOS* taos, const char* topicName, const char* sql, i
   asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
 
   tsem_wait(&pRequest->body.rspSem);
-
+#endif
 _return:
   qDestroyQuery(pQueryNode);
   /*if (sendInfo != NULL) {*/

source/common/src/tmsg.c

@@ -1990,11 +1990,9 @@ int32_t tDeserializeSMDropTopicReq(void *buf, int32_t bufLen, SMDropTopicReq *pR
 
 int32_t tSerializeSCMCreateTopicReq(void *buf, int32_t bufLen, const SCMCreateTopicReq *pReq) {
   int32_t sqlLen = 0;
-  int32_t physicalPlanLen = 0;
-  int32_t logicalPlanLen = 0;
+  int32_t astLen = 0;
   if (pReq->sql != NULL) sqlLen = (int32_t)strlen(pReq->sql);
-  if (pReq->physicalPlan != NULL) physicalPlanLen = (int32_t)strlen(pReq->physicalPlan);
-  if (pReq->logicalPlan != NULL) logicalPlanLen = (int32_t)strlen(pReq->logicalPlan);
+  if (pReq->ast != NULL) astLen = (int32_t)strlen(pReq->ast);
 
   SCoder encoder = {0};
   tCoderInit(&encoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_ENCODER);
@@ -2003,11 +2001,9 @@ int32_t tSerializeSCMCreateTopicReq(void *buf, int32_t bufLen, const SCMCreateTo
   if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
   if (tEncodeI8(&encoder, pReq->igExists) < 0) return -1;
   if (tEncodeI32(&encoder, sqlLen) < 0) return -1;
-  if (tEncodeI32(&encoder, physicalPlanLen) < 0) return -1;
-  if (tEncodeI32(&encoder, logicalPlanLen) < 0) return -1;
-  if (tEncodeCStr(&encoder, pReq->sql) < 0) return -1;
-  if (tEncodeCStr(&encoder, pReq->physicalPlan) < 0) return -1;
-  if (tEncodeCStr(&encoder, pReq->logicalPlan) < 0) return -1;
+  if (tEncodeI32(&encoder, astLen) < 0) return -1;
+  if (sqlLen > 0 && tEncodeCStr(&encoder, pReq->sql) < 0) return -1;
+  if (astLen > 0 && tEncodeCStr(&encoder, pReq->ast) < 0) return -1;
 
   tEndEncode(&encoder);
 
@@ -2018,8 +2014,7 @@ int32_t tSerializeSCMCreateTopicReq(void *buf, int32_t bufLen, const SCMCreateTo
 
 int32_t tDeserializeSCMCreateTopicReq(void *buf, int32_t bufLen, SCMCreateTopicReq *pReq) {
   int32_t sqlLen = 0;
-  int32_t physicalPlanLen = 0;
-  int32_t logicalPlanLen = 0;
+  int32_t astLen = 0;
 
   SCoder decoder = {0};
   tCoderInit(&decoder, TD_LITTLE_ENDIAN, buf, bufLen, TD_DECODER);
@@ -2028,17 +2023,20 @@ int32_t tDeserializeSCMCreateTopicReq(void *buf, int32_t bufLen, SCMCreateTopicR
   if (tDecodeCStrTo(&decoder, pReq->name) < 0) return -1;
   if (tDecodeI8(&decoder, &pReq->igExists) < 0) return -1;
   if (tDecodeI32(&decoder, &sqlLen) < 0) return -1;
-  if (tDecodeI32(&decoder, &physicalPlanLen) < 0) return -1;
-  if (tDecodeI32(&decoder, &logicalPlanLen) < 0) return -1;
+  if (tDecodeI32(&decoder, &astLen) < 0) return -1;
+
+  if (sqlLen > 0) {
+    pReq->sql = calloc(1, sqlLen + 1);
+    if (pReq->sql == NULL) return -1;
+    if (tDecodeCStrTo(&decoder, pReq->sql) < 0) return -1;
+  }
 
-  pReq->sql = calloc(1, sqlLen + 1);
-  pReq->physicalPlan = calloc(1, physicalPlanLen + 1);
-  pReq->logicalPlan = calloc(1, logicalPlanLen + 1);
-  if (pReq->sql == NULL || pReq->physicalPlan == NULL || pReq->logicalPlan == NULL) return -1;
+  if (astLen > 0) {
+    pReq->ast = calloc(1, astLen + 1);
+    if (pReq->ast == NULL) return -1;
+    if (tDecodeCStrTo(&decoder, pReq->ast) < 0) return -1;
+  }
 
-  if (tDecodeCStrTo(&decoder, pReq->sql) < 0) return -1;
-  if (tDecodeCStrTo(&decoder, pReq->physicalPlan) < 0) return -1;
-  if (tDecodeCStrTo(&decoder, pReq->logicalPlan) < 0) return -1;
   tEndDecode(&decoder);
 
   tCoderClear(&decoder);
@@ -2047,8 +2045,7 @@ int32_t tDeserializeSCMCreateTopicReq(void *buf, int32_t bufLen, SCMCreateTopicR
 
 void tFreeSCMCreateTopicReq(SCMCreateTopicReq *pReq) {
   tfree(pReq->sql);
-  tfree(pReq->physicalPlan);
-  tfree(pReq->logicalPlan);
+  tfree(pReq->ast);
 }
 
 int32_t tSerializeSCMCreateTopicRsp(void *buf, int32_t bufLen, const SCMCreateTopicRsp *pRsp) {

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

@@ -236,6 +236,29 @@ static int32_t mndCheckCreateTopicReq(SCMCreateTopicReq *pCreate) {
   return 0;
 }
 
+static int32_t mndGetPlanString(SCMCreateTopicReq *pCreate, char **pStr) {
+  if (NULL == pCreate->ast) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SNode* pAst = NULL;
+  int32_t code = nodesStringToNode(pCreate->ast, &pAst);
+
+  SQueryPlan* pPlan = NULL;
+  if (TSDB_CODE_SUCCESS == code) {
+    SPlanContext cxt = { .pAstRoot = pAst, .streamQuery = true };
+    code = qCreateQueryPlan(&cxt, &pPlan, NULL);
+  }
+
+  if (TSDB_CODE_SUCCESS == code) {
+    code = nodesNodeToString(pPlan, false, pStr, NULL);
+  }
+  nodesDestroyNode(pAst);
+  nodesDestroyNode(pPlan);
+  terrno = code;
+  return code;
+}
+
 static int32_t mndCreateTopic(SMnode *pMnode, SMnodeMsg *pReq, SCMCreateTopicReq *pCreate, SDbObj *pDb) {
   mDebug("topic:%s to create", pCreate->name);
   SMqTopicObj topicObj = {0};
@@ -247,13 +270,23 @@ static int32_t mndCreateTopic(SMnode *pMnode, SMnodeMsg *pReq, SCMCreateTopicReq
   topicObj.dbUid = pDb->uid;
   topicObj.version = 1;
   topicObj.sql = pCreate->sql;
-  topicObj.physicalPlan = pCreate->physicalPlan;
-  topicObj.logicalPlan = pCreate->logicalPlan;
+  topicObj.physicalPlan = "";
+  topicObj.logicalPlan = "";
   topicObj.sqlLen = strlen(pCreate->sql);
 
+  char* pPlanStr = NULL;
+  if (TSDB_CODE_SUCCESS != mndGetPlanString(pCreate, &pPlanStr)) {
+    mError("topic:%s, failed to get plan since %s", pCreate->name, terrstr());
+    return -1;
+  }
+  if (NULL != pPlanStr) {
+    topicObj.physicalPlan = pPlanStr;
+  }
+
   STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_TYPE_CREATE_TOPIC, &pReq->rpcMsg);
   if (pTrans == NULL) {
     mError("topic:%s, failed to create since %s", pCreate->name, terrstr());
+    tfree(pPlanStr);
     return -1;
   }
   mDebug("trans:%d, used to create topic:%s", pTrans->id, pCreate->name);
@@ -261,6 +294,7 @@ static int32_t mndCreateTopic(SMnode *pMnode, SMnodeMsg *pReq, SCMCreateTopicReq
   SSdbRaw *pRedoRaw = mndTopicActionEncode(&topicObj);
   if (pRedoRaw == NULL || mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
     mError("trans:%d, failed to append redo log since %s", pTrans->id, terrstr());
+    tfree(pPlanStr);
     mndTransDrop(pTrans);
     return -1;
   }
@@ -268,10 +302,12 @@ static int32_t mndCreateTopic(SMnode *pMnode, SMnodeMsg *pReq, SCMCreateTopicReq
 
   if (mndTransPrepare(pMnode, pTrans) != 0) {
     mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
+    tfree(pPlanStr);
     mndTransDrop(pTrans);
     return -1;
   }
 
+  tfree(pPlanStr);
   mndTransDrop(pTrans);
   return 0;
 }

source/dnode/mnode/impl/test/topic/topic.cpp

@@ -65,8 +65,7 @@ void* MndTestTopic::BuildCreateTopicReq(const char* topicName, const char* sql,
   strcpy(createReq.name, topicName);
   createReq.igExists = 0;
   createReq.sql = (char*)sql;
-  createReq.physicalPlan = (char*)"physicalPlan";
-  createReq.logicalPlan = (char*)"logicalPlan";
+  createReq.ast = NULL;
 
   int32_t contLen = tSerializeSCMCreateTopicReq(NULL, 0, &createReq);
   void*   pReq = rpcMallocCont(contLen);

source/libs/nodes/src/nodesCodeFuncs.c

@@ -1730,7 +1730,7 @@ static int32_t jsonToNodeObject(const SJson* pJson, const char* pName, SNode** p
 }
 
 int32_t nodesNodeToString(const SNodeptr pNode, bool format, char** pStr, int32_t* pLen) {
-  if (NULL == pNode || NULL == pStr || NULL == pLen) {
+  if (NULL == pNode || NULL == pStr) {
     terrno = TSDB_CODE_FAILED;
     return TSDB_CODE_FAILED;
   }
@@ -1750,7 +1750,10 @@ int32_t nodesNodeToString(const SNodeptr pNode, bool format, char** pStr, int32_
   *pStr = format ? tjsonToString(pJson) : tjsonToUnformattedString(pJson);
   tjsonDelete(pJson);
 
-  *pLen = strlen(*pStr) + 1;
+  if (NULL != pLen) {
+    *pLen = strlen(*pStr) + 1;
+  }
+
   return TSDB_CODE_SUCCESS;
 }
 

source/libs/nodes/src/nodesUtilFuncs.c

@@ -92,6 +92,8 @@ SNodeptr nodesMakeNode(ENodeType type) {
       return makeNode(type, sizeof(SCreateDatabaseStmt));
     case QUERY_NODE_DROP_DATABASE_STMT:
       return makeNode(type, sizeof(SDropDatabaseStmt));
+    case QUERY_NODE_ALTER_DATABASE_STMT:
+      return makeNode(type, sizeof(SAlterDatabaseStmt));
     case QUERY_NODE_SHOW_DATABASES_STMT:
       return makeNode(type, sizeof(SShowStmt));
     case QUERY_NODE_CREATE_TABLE_STMT:
@@ -131,8 +133,16 @@ SNodeptr nodesMakeNode(ENodeType type) {
       return makeNode(type, sizeof(SShowStmt));
     case QUERY_NODE_CREATE_INDEX_STMT:
       return makeNode(type, sizeof(SCreateIndexStmt));
+    case QUERY_NODE_DROP_INDEX_STMT:
+      return makeNode(type, sizeof(SDropIndexStmt));
     case QUERY_NODE_CREATE_QNODE_STMT:
       return makeNode(type, sizeof(SCreateQnodeStmt));
+    case QUERY_NODE_DROP_QNODE_STMT:
+      return makeNode(type, sizeof(SDropQnodeStmt));
+    case QUERY_NODE_CREATE_TOPIC_STMT:
+      return makeNode(type, sizeof(SCreateTopicStmt));
+    case QUERY_NODE_DROP_TOPIC_STMT:
+      return makeNode(type, sizeof(SDropTopicStmt));
     case QUERY_NODE_LOGIC_PLAN_SCAN:
       return makeNode(type, sizeof(SScanLogicNode));
     case QUERY_NODE_LOGIC_PLAN_JOIN:

source/libs/parser/inc/parAst.h

@@ -113,6 +113,7 @@ SNode* createDefaultDatabaseOptions(SAstCreateContext* pCxt);
 SNode* setDatabaseOption(SAstCreateContext* pCxt, SNode* pOptions, EDatabaseOptionType type, const SToken* pVal);
 SNode* createCreateDatabaseStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pDbName, SNode* pOptions);
 SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pDbName);
+SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName, SNode* pOptions);
 SNode* createDefaultTableOptions(SAstCreateContext* pCxt);
 SNode* setTableOption(SAstCreateContext* pCxt, SNode* pOptions, ETableOptionType type, const SToken* pVal);
 SNode* setTableSmaOption(SAstCreateContext* pCxt, SNode* pOptions, SNodeList* pSma);
@@ -134,7 +135,11 @@ SNode* createCreateDnodeStmt(SAstCreateContext* pCxt, const SToken* pFqdn, const
 SNode* createDropDnodeStmt(SAstCreateContext* pCxt, const SToken* pDnode);
 SNode* createCreateIndexStmt(SAstCreateContext* pCxt, EIndexType type, const SToken* pIndexName, const SToken* pTableName, SNodeList* pCols, SNode* pOptions);
 SNode* createIndexOption(SAstCreateContext* pCxt, SNodeList* pFuncs, SNode* pInterval, SNode* pOffset, SNode* pSliding);
+SNode* createDropIndexStmt(SAstCreateContext* pCxt, const SToken* pIndexName, const SToken* pTableName);
 SNode* createCreateQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId);
+SNode* createDropQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId);
+SNode* createCreateTopicStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pTopicName, SNode* pQuery, const SToken* pSubscribeDbName);
+SNode* createDropTopicStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pTopicName);
 
 #ifdef __cplusplus
 }

source/libs/parser/inc/sql.y

@@ -42,17 +42,17 @@
 //%right NK_BITNOT.
 
 /************************************************ create/alter/drop/show user *****************************************/
-cmd ::= CREATE USER user_name(A) PASS NK_STRING(B).                               { pCxt->pRootNode = createCreateUserStmt(pCxt, &A, &B);}
-cmd ::= ALTER USER user_name(A) PASS NK_STRING(B).                                { pCxt->pRootNode = createAlterUserStmt(pCxt, &A, TSDB_ALTER_USER_PASSWD, &B);}
-cmd ::= ALTER USER user_name(A) PRIVILEGE NK_STRING(B).                           { pCxt->pRootNode = createAlterUserStmt(pCxt, &A, TSDB_ALTER_USER_PRIVILEGES, &B);}
+cmd ::= CREATE USER user_name(A) PASS NK_STRING(B).                               { pCxt->pRootNode = createCreateUserStmt(pCxt, &A, &B); }
+cmd ::= ALTER USER user_name(A) PASS NK_STRING(B).                                { pCxt->pRootNode = createAlterUserStmt(pCxt, &A, TSDB_ALTER_USER_PASSWD, &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); }
 cmd ::= SHOW USERS.                                                               { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_USERS_STMT, NULL); }
 
 /************************************************ create/drop/show 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);}
-cmd ::= DROP DNODE NK_INTEGER(A).                                                 { pCxt->pRootNode = createDropDnodeStmt(pCxt, &A);}
-cmd ::= DROP DNODE dnode_endpoint(A).                                             { pCxt->pRootNode = createDropDnodeStmt(pCxt, &A);}
+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); }
+cmd ::= DROP DNODE NK_INTEGER(A).                                                 { pCxt->pRootNode = createDropDnodeStmt(pCxt, &A); }
+cmd ::= DROP DNODE dnode_endpoint(A).                                             { pCxt->pRootNode = createDropDnodeStmt(pCxt, &A); }
 cmd ::= SHOW DNODES.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_DNODES_STMT, NULL); }
 
 %type dnode_endpoint                                                              { SToken }
@@ -64,15 +64,17 @@ dnode_endpoint(A) ::= NK_STRING(B).
 dnode_host_name(A) ::= NK_ID(B).                                                  { A = B; }
 dnode_host_name(A) ::= NK_IPTOKEN(B).                                             { A = B; }
 
-/************************************************ create qnode ********************************************************/
+/************************************************ create/drop qnode ***************************************************/
 cmd ::= CREATE QNODE ON DNODE NK_INTEGER(A).                                      { pCxt->pRootNode = createCreateQnodeStmt(pCxt, &A); }
+cmd ::= DROP QNODE ON DNODE NK_INTEGER(A).                                                 { pCxt->pRootNode = createDropQnodeStmt(pCxt, &A); }
 cmd ::= SHOW QNODES.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_QNODES_STMT, NULL); }
 
 /************************************************ create/drop/show/use database ***************************************/
-cmd ::= CREATE DATABASE not_exists_opt(A) db_name(B) db_options(C).               { pCxt->pRootNode = createCreateDatabaseStmt(pCxt, A, &B, C);}
+cmd ::= CREATE DATABASE not_exists_opt(A) db_name(B) db_options(C).               { pCxt->pRootNode = createCreateDatabaseStmt(pCxt, A, &B, C); }
 cmd ::= DROP DATABASE exists_opt(A) db_name(B).                                   { pCxt->pRootNode = createDropDatabaseStmt(pCxt, A, &B); }
 cmd ::= SHOW DATABASES.                                                           { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_DATABASES_STMT, NULL); }
-cmd ::= USE db_name(A).                                                           { pCxt->pRootNode = createUseDatabaseStmt(pCxt, &A);}
+cmd ::= USE db_name(A).                                                           { pCxt->pRootNode = createUseDatabaseStmt(pCxt, &A); }
+cmd ::= ALTER DATABASE db_name(A) db_options(B).                                  { pCxt->pRootNode = createAlterDatabaseStmt(pCxt, &A, B); }
 
 %type not_exists_opt                                                              { bool }
 %destructor not_exists_opt                                                        { }
@@ -198,6 +200,7 @@ col_name(A) ::= column_name(B).
 cmd ::= CREATE SMA INDEX index_name(A) ON table_name(B) index_options(C).         { pCxt->pRootNode = createCreateIndexStmt(pCxt, INDEX_TYPE_SMA, &A, &B, NULL, C); }
 cmd ::= CREATE FULLTEXT INDEX
   index_name(A) ON table_name(B) NK_LP col_name_list(C) NK_RP.                    { pCxt->pRootNode = createCreateIndexStmt(pCxt, INDEX_TYPE_FULLTEXT, &A, &B, C, NULL); }
+cmd ::= DROP INDEX index_name(A) ON table_name(B).                                { pCxt->pRootNode = createDropIndexStmt(pCxt, &A, &B); }
 
 index_options(A) ::= .                                                            { A = NULL; }
 index_options(A) ::= FUNCTION NK_LP func_list(B) NK_RP INTERVAL 
@@ -212,6 +215,11 @@ func_list(A) ::= func_list(B) NK_COMMA func(C).
 
 func(A) ::= function_name(B) NK_LP expression_list(C) NK_RP.                      { A = createFunctionNode(pCxt, &B, C); }
 
+/************************************************ create/drop topic ***************************************************/
+cmd ::= CREATE TOPIC not_exists_opt(A) topic_name(B) AS query_expression(C).      { pCxt->pRootNode = createCreateTopicStmt(pCxt, A, &B, C, NULL); }
+cmd ::= CREATE TOPIC not_exists_opt(A) topic_name(B) AS db_name(C).               { pCxt->pRootNode = createCreateTopicStmt(pCxt, A, &B, NULL, &C); }
+cmd ::= DROP TOPIC exists_opt(A) topic_name(B).                                   { pCxt->pRootNode = createDropTopicStmt(pCxt, A, &B); }
+
 /************************************************ show vgroups ********************************************************/
 cmd ::= SHOW VGROUPS.                                                             { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_VGROUPS_STMT, NULL); }
 cmd ::= SHOW db_name(B) NK_DOT VGROUPS.                                           { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_VGROUPS_STMT, &B); }
@@ -270,6 +278,10 @@ user_name(A) ::= NK_ID(B).
 %destructor index_name                                                            { }
 index_name(A) ::= NK_ID(B).                                                       { A = B; }
 
+%type topic_name                                                                  { SToken }
+%destructor topic_name                                                            { }
+topic_name(A) ::= NK_ID(B).                                                       { A = B; }
+
 /************************************************ expression **********************************************************/
 expression(A) ::= literal(B).                                                     { A = B; }
 //expression(A) ::= NK_QUESTION(B).                                                 { A = B; }

source/libs/parser/src/parAstCreater.c

@@ -799,6 +799,17 @@ SNode* createDropDatabaseStmt(SAstCreateContext* pCxt, bool ignoreNotExists, con
   return (SNode*)pStmt;
 }
 
+SNode* createAlterDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName, SNode* pOptions) {
+  if (!checkDbName(pCxt, pDbName)) {
+    return NULL;
+  }
+  SAlterDatabaseStmt* pStmt = nodesMakeNode(QUERY_NODE_ALTER_DATABASE_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  strncpy(pStmt->dbName, pDbName->z, pDbName->n);
+  pStmt->pOptions = (SDatabaseOptions*)pOptions;
+  return (SNode*)pStmt;
+}
+
 SNode* createDefaultTableOptions(SAstCreateContext* pCxt) {
   STableOptions* pOptions = nodesMakeNode(QUERY_NODE_TABLE_OPTIONS);
   CHECK_OUT_OF_MEM(pOptions);
@@ -1022,9 +1033,47 @@ SNode* createIndexOption(SAstCreateContext* pCxt, SNodeList* pFuncs, SNode* pInt
   return (SNode*)pOptions;
 }
 
+SNode* createDropIndexStmt(SAstCreateContext* pCxt, const SToken* pIndexName, const SToken* pTableName) {
+  if (!checkIndexName(pCxt, pIndexName) || !checkTableName(pCxt, pTableName)) {
+    return NULL;
+  }
+  SDropIndexStmt* pStmt = nodesMakeNode(QUERY_NODE_DROP_INDEX_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  strncpy(pStmt->indexName, pIndexName->z, pIndexName->n);
+  strncpy(pStmt->tableName, pTableName->z, pTableName->n);
+  return (SNode*)pStmt;
+}
+
 SNode* createCreateQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId) {
   SCreateQnodeStmt* pStmt = nodesMakeNode(QUERY_NODE_CREATE_QNODE_STMT);
   CHECK_OUT_OF_MEM(pStmt);
   pStmt->dnodeId = strtol(pDnodeId->z, NULL, 10);;
   return (SNode*)pStmt;
 }
+
+SNode* createDropQnodeStmt(SAstCreateContext* pCxt, const SToken* pDnodeId) {
+  SDropQnodeStmt* pStmt = nodesMakeNode(QUERY_NODE_DROP_QNODE_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  pStmt->dnodeId = strtol(pDnodeId->z, NULL, 10);;
+  return (SNode*)pStmt;
+}
+
+SNode* createCreateTopicStmt(SAstCreateContext* pCxt, bool ignoreExists, const SToken* pTopicName, SNode* pQuery, const SToken* pSubscribeDbName) {
+  SCreateTopicStmt* pStmt = nodesMakeNode(QUERY_NODE_CREATE_TOPIC_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  strncpy(pStmt->topicName, pTopicName->z, pTopicName->n);
+  pStmt->ignoreExists = ignoreExists;
+  pStmt->pQuery = pQuery;
+  if (NULL != pSubscribeDbName) {
+    strncpy(pStmt->subscribeDbName, pSubscribeDbName->z, pSubscribeDbName->n);
+  }
+  return (SNode*)pStmt;
+}
+
+SNode* createDropTopicStmt(SAstCreateContext* pCxt, bool ignoreNotExists, const SToken* pTopicName) {
+  SDropTopicStmt* pStmt = nodesMakeNode(QUERY_NODE_DROP_TOPIC_STMT);
+  CHECK_OUT_OF_MEM(pStmt);
+  strncpy(pStmt->topicName, pTopicName->z, pTopicName->n);
+  pStmt->ignoreNotExists = ignoreNotExists;
+  return (SNode*)pStmt;
+}

source/libs/parser/src/parTokenizer.c

@@ -121,6 +121,7 @@ static SKeyword keywordTable[] = {
     {"TAGS",          TK_TAGS},
     {"TIMESTAMP",     TK_TIMESTAMP},
     {"TINYINT",       TK_TINYINT},
+    {"TOPIC",         TK_TOPIC},
     {"TTL",           TK_TTL},
     {"UNION",         TK_UNION},
     {"UNSIGNED",      TK_UNSIGNED},
@@ -230,7 +231,6 @@ static SKeyword keywordTable[] = {
     // {"TBNAME",       TK_TBNAME},
     // {"VNODES",       TK_VNODES},
 //    {"PARTITIONS",   TK_PARTITIONS},
-    // {"TOPIC",        TK_TOPIC},
     // {"TOPICS",       TK_TOPICS},
     // {"COMPACT",      TK_COMPACT},
     // {"MODIFY",       TK_MODIFY},

source/libs/parser/src/parTranslater.c

@@ -21,14 +21,6 @@
 #include "parUtil.h"
 #include "ttime.h"
 
-static bool afterGroupBy(ESqlClause clause) {
-  return clause > SQL_CLAUSE_GROUP_BY;
-}
-
-static bool beforeHaving(ESqlClause clause) {
-  return clause < SQL_CLAUSE_HAVING;
-}
-
 typedef struct STranslateContext {
   SParseContext* pParseCxt;
   int32_t errCode;
@@ -41,6 +33,15 @@ typedef struct STranslateContext {
 } STranslateContext;
 
 static int32_t translateSubquery(STranslateContext* pCxt, SNode* pNode);
+static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode);
+
+static bool afterGroupBy(ESqlClause clause) {
+  return clause > SQL_CLAUSE_GROUP_BY;
+}
+
+static bool beforeHaving(ESqlClause clause) {
+  return clause < SQL_CLAUSE_HAVING;
+}
 
 static EDealRes generateDealNodeErrMsg(STranslateContext* pCxt, int32_t errCode, ...) {
   va_list vArgList;
@@ -833,6 +834,41 @@ static int32_t translateDropDatabase(STranslateContext* pCxt, SDropDatabaseStmt*
   return TSDB_CODE_SUCCESS;
 }
 
+static void buildAlterDbReq(STranslateContext* pCxt, SAlterDatabaseStmt* pStmt, SAlterDbReq* pReq) {
+  SName name = {0};
+  tNameSetDbName(&name, pCxt->pParseCxt->acctId, pStmt->dbName, strlen(pStmt->dbName));
+  tNameGetFullDbName(&name, pReq->db);
+  pReq->totalBlocks = pStmt->pOptions->numOfBlocks;
+  pReq->daysToKeep0 = pStmt->pOptions->keep;
+  pReq->daysToKeep1 = -1;
+  pReq->daysToKeep2 = -1;
+  pReq->fsyncPeriod = pStmt->pOptions->fsyncPeriod;
+  pReq->walLevel = pStmt->pOptions->walLevel;
+  pReq->quorum = pStmt->pOptions->quorum;
+  pReq->cacheLastRow = pStmt->pOptions->cachelast;
+  return;
+}
+
+static int32_t translateAlterDatabase(STranslateContext* pCxt, SAlterDatabaseStmt* pStmt) {
+  SAlterDbReq alterReq = {0};
+  buildAlterDbReq(pCxt, pStmt, &alterReq);
+
+  pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
+  if (NULL == pCxt->pCmdMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCxt->pCmdMsg->epSet = pCxt->pParseCxt->mgmtEpSet;
+  pCxt->pCmdMsg->msgType = TDMT_MND_ALTER_DB;
+  pCxt->pCmdMsg->msgLen = tSerializeSAlterDbReq(NULL, 0, &alterReq);
+  pCxt->pCmdMsg->pMsg = malloc(pCxt->pCmdMsg->msgLen);
+  if (NULL == pCxt->pCmdMsg->pMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  tSerializeSAlterDbReq(pCxt->pCmdMsg->pMsg, pCxt->pCmdMsg->msgLen, &alterReq);
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t columnNodeToField(SNodeList* pList, SArray** pArray) {
   *pArray = taosArrayInit(LIST_LENGTH(pList), sizeof(SField));
   SNode* pNode;
@@ -1201,6 +1237,27 @@ static int32_t translateCreateIndex(STranslateContext* pCxt, SCreateIndexStmt* p
   }
 }
 
+static int32_t translateDropIndex(STranslateContext* pCxt, SDropIndexStmt* pStmt) {
+  SVDropTSmaReq dropSmaReq = {0};
+  strcpy(dropSmaReq.indexName, pStmt->indexName);
+
+  pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
+  if (NULL == pCxt->pCmdMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCxt->pCmdMsg->epSet = pCxt->pParseCxt->mgmtEpSet;
+  pCxt->pCmdMsg->msgType = TDMT_VND_DROP_SMA;
+  pCxt->pCmdMsg->msgLen = tSerializeSVDropTSmaReq(NULL, &dropSmaReq);
+  pCxt->pCmdMsg->pMsg = malloc(pCxt->pCmdMsg->msgLen);
+  if (NULL == pCxt->pCmdMsg->pMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  void* pBuf = pCxt->pCmdMsg->pMsg;
+  tSerializeSVDropTSmaReq(&pBuf, &dropSmaReq);
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t translateCreateQnode(STranslateContext* pCxt, SCreateQnodeStmt* pStmt) {
   SMCreateQnodeReq createReq = { .dnodeId = pStmt->dnodeId };
 
@@ -1220,6 +1277,93 @@ static int32_t translateCreateQnode(STranslateContext* pCxt, SCreateQnodeStmt* p
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t translateDropQnode(STranslateContext* pCxt, SDropQnodeStmt* pStmt) {
+  SDDropQnodeReq dropReq = { .dnodeId = pStmt->dnodeId };
+
+  pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
+  if (NULL == pCxt->pCmdMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCxt->pCmdMsg->epSet = pCxt->pParseCxt->mgmtEpSet;
+  pCxt->pCmdMsg->msgType = TDMT_DND_DROP_QNODE;
+  pCxt->pCmdMsg->msgLen = tSerializeSMCreateDropQSBNodeReq(NULL, 0, &dropReq);
+  pCxt->pCmdMsg->pMsg = malloc(pCxt->pCmdMsg->msgLen);
+  if (NULL == pCxt->pCmdMsg->pMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  tSerializeSMCreateDropQSBNodeReq(pCxt->pCmdMsg->pMsg, pCxt->pCmdMsg->msgLen, &dropReq);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t translateCreateTopic(STranslateContext* pCxt, SCreateTopicStmt* pStmt) {
+  SCMCreateTopicReq createReq = {0};
+
+  if (NULL != pStmt->pQuery) {
+    int32_t code = translateQuery(pCxt, pStmt->pQuery);
+    if (TSDB_CODE_SUCCESS == code) {
+      code = nodesNodeToString(pStmt->pQuery, false, &createReq.ast, NULL);
+    }
+    if (TSDB_CODE_SUCCESS != code ) {
+      return code;
+    }
+  } else {
+    strcpy(createReq.subscribeDbName, pStmt->subscribeDbName);
+  }
+  
+  createReq.sql = strdup(pCxt->pParseCxt->pSql);
+  if (NULL == createReq.sql) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->pParseCxt->acctId };
+  strcpy(name.dbname, pCxt->pParseCxt->db);
+  strcpy(name.tname, pStmt->topicName);
+  tNameExtractFullName(&name, createReq.name);
+  createReq.igExists = pStmt->ignoreExists;
+
+  pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
+  if (NULL == pCxt->pCmdMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCxt->pCmdMsg->epSet = pCxt->pParseCxt->mgmtEpSet;
+  pCxt->pCmdMsg->msgType = TDMT_MND_CREATE_TOPIC;
+  pCxt->pCmdMsg->msgLen = tSerializeSCMCreateTopicReq(NULL, 0, &createReq);
+  pCxt->pCmdMsg->pMsg = malloc(pCxt->pCmdMsg->msgLen);
+  if (NULL == pCxt->pCmdMsg->pMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  tSerializeSCMCreateTopicReq(pCxt->pCmdMsg->pMsg, pCxt->pCmdMsg->msgLen, &createReq);
+  tFreeSCMCreateTopicReq(&createReq);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t translateDropTopic(STranslateContext* pCxt, SDropTopicStmt* pStmt) {
+  SMDropTopicReq dropReq = {0};
+
+  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->pParseCxt->acctId };
+  strcpy(name.dbname, pCxt->pParseCxt->db);
+  strcpy(name.tname, pStmt->topicName);
+  tNameExtractFullName(&name, dropReq.name);
+  dropReq.igNotExists = pStmt->ignoreNotExists;
+
+  pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
+  if (NULL == pCxt->pCmdMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  pCxt->pCmdMsg->epSet = pCxt->pParseCxt->mgmtEpSet;
+  pCxt->pCmdMsg->msgType = TDMT_MND_DROP_TOPIC;
+  pCxt->pCmdMsg->msgLen = tSerializeSMDropTopicReq(NULL, 0, &dropReq);
+  pCxt->pCmdMsg->pMsg = malloc(pCxt->pCmdMsg->msgLen);
+  if (NULL == pCxt->pCmdMsg->pMsg) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  tSerializeSMDropTopicReq(pCxt->pCmdMsg->pMsg, pCxt->pCmdMsg->msgLen, &dropReq);
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
   int32_t code = TSDB_CODE_SUCCESS;
   switch (nodeType(pNode)) {
@@ -1232,6 +1376,9 @@ static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
     case QUERY_NODE_DROP_DATABASE_STMT:
       code = translateDropDatabase(pCxt, (SDropDatabaseStmt*)pNode);
       break;
+    case QUERY_NODE_ALTER_DATABASE_STMT:
+      code = translateAlterDatabase(pCxt, (SAlterDatabaseStmt*)pNode);
+      break;
     case QUERY_NODE_CREATE_TABLE_STMT:
       code = translateCreateSuperTable(pCxt, (SCreateTableStmt*)pNode);
       break;
@@ -1274,9 +1421,21 @@ static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
     case QUERY_NODE_CREATE_INDEX_STMT:
       code = translateCreateIndex(pCxt, (SCreateIndexStmt*)pNode);
       break;
+    case QUERY_NODE_DROP_INDEX_STMT:
+      code = translateDropIndex(pCxt, (SDropIndexStmt*)pNode);
+      break;
     case QUERY_NODE_CREATE_QNODE_STMT:
       code = translateCreateQnode(pCxt, (SCreateQnodeStmt*)pNode);
       break;
+    case QUERY_NODE_DROP_QNODE_STMT:
+      code = translateDropQnode(pCxt, (SDropQnodeStmt*)pNode);
+      break;
+    case QUERY_NODE_CREATE_TOPIC_STMT:
+      code = translateCreateTopic(pCxt, (SCreateTopicStmt*)pNode);
+      break;
+    case QUERY_NODE_DROP_TOPIC_STMT:
+      code = translateDropTopic(pCxt, (SDropTopicStmt*)pNode);
+      break;
     default:
       break;
   }

source/libs/parser/test/parserAstTest.cpp

@@ -340,6 +340,23 @@ TEST_F(ParserTest, createDatabase) {
   ASSERT_TRUE(run());
 }
 
+TEST_F(ParserTest, alterDatabase) {
+  setDatabase("root", "test");
+
+  bind("alter database wxy_db BLOCKS 200");
+  ASSERT_TRUE(run());
+
+  bind("alter database wxy_db "
+       "BLOCKS 200 "
+       "CACHELAST 1 "
+       "FSYNC 200 "
+       "KEEP 200 "
+       "QUORUM 2 "
+       "WAL 1 "
+      );
+  ASSERT_TRUE(run());
+}
+
 TEST_F(ParserTest, showDatabase) {
   setDatabase("root", "test");
 
@@ -406,9 +423,49 @@ TEST_F(ParserTest, createSmaIndex) {
   ASSERT_TRUE(run());
 }
 
+TEST_F(ParserTest, dropIndex) {
+  setDatabase("root", "test");
+
+  bind("drop index index1 on t1");
+  ASSERT_TRUE(run());
+}
+
 TEST_F(ParserTest, createQnode) {
   setDatabase("root", "test");
 
   bind("create qnode on dnode 1");
   ASSERT_TRUE(run());
 }
+
+TEST_F(ParserTest, dropQnode) {
+  setDatabase("root", "test");
+
+  bind("drop qnode on dnode 1");
+  ASSERT_TRUE(run());
+}
+
+TEST_F(ParserTest, createTopic) {
+  setDatabase("root", "test");
+
+  bind("create topic tp1 as select * from t1");
+  ASSERT_TRUE(run());
+
+  bind("create topic if not exists tp1 as select * from t1");
+  ASSERT_TRUE(run());
+
+  bind("create topic tp1 as test");
+  ASSERT_TRUE(run());
+
+  bind("create topic if not exists tp1 as test");
+  ASSERT_TRUE(run());
+}
+
+TEST_F(ParserTest, dropTopic) {
+  setDatabase("root", "test");
+
+  bind("drop topic tp1");
+  ASSERT_TRUE(run());
+
+  bind("drop topic if exists tp1");
+  ASSERT_TRUE(run());
+}