[td-171] suppress create if not exists dbname return error msg

src/client/src/tscSQLParser.c

@@ -4784,6 +4784,7 @@ static void setCreateDBOption(SCMCreateDbMsg* pMsg, SCreateDBInfo* pCreateDb) {
   pMsg->rowsInFileBlock = htonl(pCreateDb->rowPerFileBlock);
   pMsg->daysPerFile = htonl(pCreateDb->daysPerFile);
   pMsg->replications = pCreateDb->replica;
+  pMsg->ignoreExist = pCreateDb->ignoreExists;
 }
 
 int32_t parseCreateDBOptions(SSqlCmd* pCmd, SCreateDBInfo* pCreateDbSql) {

src/client/src/tscServer.c

@@ -380,6 +380,7 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg) {
 int doProcessSql(SSqlObj *pSql) {
   SSqlCmd *pCmd = &pSql->cmd;
   SSqlRes *pRes = &pSql->res;
+  int32_t code = TSDB_CODE_SUCCESS;
   
   if (pCmd->command == TSDB_SQL_SELECT ||
       pCmd->command == TSDB_SQL_FETCH ||
@@ -389,10 +390,15 @@ int doProcessSql(SSqlObj *pSql) {
       pCmd->command == TSDB_SQL_HB ||
       pCmd->command == TSDB_SQL_META ||
       pCmd->command == TSDB_SQL_STABLEVGROUP) {
-    tscBuildMsg[pCmd->command](pSql, NULL);
+    pRes->code = tscBuildMsg[pCmd->command](pSql, NULL);
   }
   
-  int32_t code = tscSendMsgToServer(pSql);
+  if (pRes->code != TSDB_CODE_SUCCESS) {
+    tscQueueAsyncRes(pSql);
+    return pRes->code;
+  }
+
+  code = tscSendMsgToServer(pSql);
   if (code != TSDB_CODE_SUCCESS) {
     pRes->code = code;
     tscQueueAsyncRes(pSql);
@@ -702,17 +708,18 @@ int tscBuildQueryMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
   char *pMsg = (char *)(pQueryMsg->colList) + numOfCols * sizeof(SColumnInfo);
   SSchema *pSchema = tscGetTableSchema(pTableMeta);
   
+  int32_t total = tscGetNumOfColumns(pTableMeta) + tscGetNumOfTags(pTableMeta);
   for (int32_t i = 0; i < numOfCols; ++i) {
     SColumn *pCol = taosArrayGetP(pQueryInfo->colList, i);
     SSchema *pColSchema = &pSchema[pCol->colIndex.columnIndex];
 
-    if (pCol->colIndex.columnIndex >= tscGetNumOfColumns(pTableMeta) || pColSchema->type < TSDB_DATA_TYPE_BOOL ||
+    if (pCol->colIndex.columnIndex >= total || pColSchema->type < TSDB_DATA_TYPE_BOOL ||
         pColSchema->type > TSDB_DATA_TYPE_NCHAR) {
       tscError("%p sid:%d uid:%" PRIu64" id:%s, column index out of range, numOfColumns:%d, index:%d, column name:%s",
           pSql, pTableMeta->sid, pTableMeta->uid, pTableMetaInfo->name, tscGetNumOfColumns(pTableMeta), pCol->colIndex,
                pColSchema->name);
 
-      return -1;  // 0 means build msg failed
+      return TSDB_CODE_INVALID_SQL;
     }
 
     pQueryMsg->colList[i].colId = htons(pColSchema->colId);

src/inc/taosmsg.h

@@ -515,8 +515,8 @@ typedef struct {
 } SVnodeLoad;
 
 typedef struct {
-  char     acct[TSDB_USER_LEN + 1];
-  char     db[TSDB_DB_NAME_LEN + 1];
+  char     acct[TSDB_USER_LEN];
+  char     db[TSDB_DB_NAME_LEN];
   uint32_t vgId;
   int32_t  maxSessions;
   int32_t  cacheBlockSize;
@@ -537,8 +537,8 @@ typedef struct {
   int8_t  repStrategy;
   int8_t  loadLatest;  // load into mem or not
   uint8_t precision;   // time resolution
-  int8_t  reserved[16];
-} SDbCfg, SCMCreateDbMsg, SCMAlterDbMsg;
+  int8_t  ignoreExist;
+} SCMCreateDbMsg, SCMAlterDbMsg;
 
 typedef struct {
   char    db[TSDB_TABLE_ID_LEN + 1];

src/mnode/inc/mgmtDef.h

@@ -29,6 +29,32 @@ struct SAcctObj;
 struct SUserObj;
 struct SMnodeObj;
 
+typedef struct {
+  char     acct[TSDB_USER_LEN];
+  char     db[TSDB_DB_NAME_LEN];
+  uint32_t vgId;
+  int32_t  maxSessions;
+  int32_t  cacheBlockSize;
+  union {
+    int32_t totalBlocks;
+    float   fraction;
+  } cacheNumOfBlocks;
+  int32_t daysPerFile;
+  int32_t daysToKeep1;
+  int32_t daysToKeep2;
+  int32_t daysToKeep;
+  int32_t commitTime;
+  int32_t rowsInFileBlock;
+  int16_t blocksPerTable;
+  int8_t  compression;
+  int8_t  commitLog;
+  int8_t  replications;
+  int8_t  repStrategy;
+  int8_t  loadLatest;  // load into mem or not
+  uint8_t precision;   // time resolution
+  int8_t  reserved[16];
+} SDbCfg;
+
 typedef struct SDnodeObj {
   int32_t    dnodeId;
   uint32_t   privateIp;

src/mnode/src/mgmtDb.c

@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "os.h"
+
 #include "taoserror.h"
 #include "tutil.h"
 #include "tgrant.h"
@@ -300,8 +301,13 @@ static int32_t mgmtCreateDb(SAcctObj *pAcct, SCMCreateDbMsg *pCreate) {
   SDbObj *pDb = mgmtGetDb(pCreate->db);
   if (pDb != NULL) {
     mgmtDecDbRef(pDb);
+  
+    if (pCreate->ignoreExist) {
+      return TSDB_CODE_SUCCESS;
+    } else {
       return TSDB_CODE_DB_ALREADY_EXIST;
     }
+  }
 
   code = mgmtCheckDbParams(pCreate);
   if (code != TSDB_CODE_SUCCESS) return code;
@@ -313,18 +319,41 @@ static int32_t mgmtCreateDb(SAcctObj *pAcct, SCMCreateDbMsg *pCreate) {
     return code;
   }
 
-  pDb = malloc(sizeof(SDbObj));
-  memset(pDb, 0, sizeof(SDbObj));
-  strcpy(pDb->name, pCreate->db);
-  strcpy(pCreate->acct, pAcct->user);
+  pDb = calloc(1, sizeof(SDbObj));
+  
+  strncpy(pDb->name, pCreate->db, TSDB_DB_NAME_LEN);
+  strncpy(pCreate->acct, pAcct->user, TSDB_USER_LEN);
+  
   pDb->createdTime = taosGetTimestampMs();
-  pDb->cfg = *pCreate;
+  
+  pDb->cfg = (SDbCfg) {
+      .vgId         = pCreate->vgId,
+      .precision    = pCreate->precision,
+      .maxSessions  = pCreate->maxSessions,
+      .cacheNumOfBlocks.totalBlocks = pCreate->cacheNumOfBlocks.totalBlocks,
+      .rowsInFileBlock = pCreate->rowsInFileBlock,
+      .commitLog    = pCreate->commitLog,
+      .replications = pCreate->replications,
+      .daysPerFile  = pCreate->daysPerFile,
+      .cacheBlockSize = pCreate->cacheBlockSize,
+      .commitTime   = pCreate->commitTime,
+      .blocksPerTable = pCreate->blocksPerTable,
+      .compression  = pCreate->compression,
+      .daysToKeep   = pCreate->daysToKeep,
+      .daysToKeep1  = pCreate->daysToKeep1,
+      .daysToKeep2  = pCreate->daysToKeep2,
+      .loadLatest   = pCreate->loadLatest,
+      .repStrategy  = pCreate->repStrategy,
+  };
+  
+  strncpy(pDb->cfg.db, pCreate->db, TSDB_DB_NAME_LEN);
+  strncpy(pDb->cfg.acct, pCreate->acct, TSDB_USER_LEN);
 
   SSdbOper oper = {
     .type   = SDB_OPER_GLOBAL,
     .table  = tsDbSdb,
     .pObj   = pDb,
-    .rowSize = sizeof(SDbObj)
+    .rowSize = sizeof(SDbObj),
   };
 
   code = sdbInsertRow(&oper);

src/query/inc/qsqlparser.h

@@ -114,14 +114,13 @@ typedef struct SCreateDBInfo {
   int32_t   tablesPerVnode;
   int32_t   daysPerFile;
   int32_t   rowPerFileBlock;
-  
   float     numOfAvgCacheBlocks;
   int32_t   numOfBlocksPerTable;
-  
   int64_t   commitTime;
   int32_t   commitLog;
   int32_t   compressionLevel;
   SSQLToken precision;
+  bool      ignoreExists;
   
   tVariantList *keep;
 } SCreateDBInfo;

src/query/src/qparserImpl.c

@@ -815,8 +815,7 @@ void setCreateDBSQL(SSqlInfo *pInfo, int32_t type, SSQLToken *pToken, SCreateDBI
 
   pInfo->pDCLInfo->dbOpt = *pDB;
   pInfo->pDCLInfo->dbOpt.dbname = *pToken;
-
-  tTokenListAppend(pInfo->pDCLInfo, pIgExists);
+  pInfo->pDCLInfo->dbOpt.ignoreExists = (pIgExists != NULL);
 }
 
 void setCreateAcctSQL(SSqlInfo *pInfo, int32_t type, SSQLToken *pName, SSQLToken *pPwd, SCreateAcctSQL *pAcctInfo) {

src/query/src/queryExecutor.c

@@ -3555,7 +3555,7 @@ static void setWindowResOutputBuf(SQueryRuntimeEnv *pRuntimeEnv, SWindowResult *
 
 int32_t setAdditionalInfo(SQInfo *pQInfo, STable *pTable, STableQueryInfo *pTableQueryInfo) {
   SQueryRuntimeEnv *pRuntimeEnv = &pQInfo->runtimeEnv;
-  assert(pTableQueryInfo->lastKey > 0);
+  assert(pTableQueryInfo->lastKey >= 0);
 
   setTagVal(pRuntimeEnv, pTable->tableId, pQInfo->tsdb);