[td-225] fix bugs found in script

src/client/inc/tsclient.h

@@ -318,7 +318,6 @@ typedef struct SSqlObj {
   char             freed : 4;
   char             listed : 4;
   tsem_t           rspSem;
-  pthread_mutex_t  inUse; // make sure that one connection can only be utilized by one thread/process
   SSqlCmd          cmd;
   SSqlRes          res;
   uint16_t         numOfSubs;

src/client/src/tscSql.c

@@ -123,13 +123,6 @@ STscObj *taosConnectImpl(const char *ip, const char *user, const char *pass, con
   
   tsem_init(&pSql->rspSem, 0, 0);
   
-  pthread_mutexattr_t mutexattr;
-  memset(&mutexattr, 0, sizeof(pthread_mutexattr_t));
-  
-  pthread_mutexattr_settype(&mutexattr, PTHREAD_MUTEX_RECURSIVE_NP);
-  pthread_mutex_init(&pSql->inUse, &mutexattr);
-  pthread_mutexattr_destroy(&mutexattr);
-
   pObj->pSql = pSql;
   pObj->pDnodeConn = pDnodeConn;
   
@@ -291,23 +284,11 @@ int taos_query(TAOS *taos, const char *sqlstr) {
   }
   
   SSqlObj* pSql = pObj->pSql;
-  SSqlCmd* pCmd = &pSql->cmd;
-  
-  // now this TAOS_CONN object is in use by one thread
-  pthread_mutex_lock(&pSql->inUse);
-  
   size_t   sqlLen = strlen(sqlstr);
   doAsyncQuery(pObj, pSql, waitForQueryRsp, taos, sqlstr, sqlLen);
 
   // wait for the callback function to post the semaphore
   tsem_wait(&pSql->rspSem);
-  
-  if (pCmd->command != TSDB_SQL_SELECT &&
-      pCmd->command != TSDB_SQL_SHOW &&
-      pCmd->command != TSDB_SQL_DESCRIBE_TABLE) {
-    pthread_mutex_unlock(&pSql->inUse);
-  }
-  
   return pSql->res.code;
 }
 
@@ -565,7 +546,6 @@ void taos_free_result(TAOS_RES *res) {
       tscFreeSqlObj(pSql);
     } else {
       tscPartiallyFreeSqlObj(pSql);
-      pthread_mutex_unlock(&pSql->inUse); // now this TAOS_CONN can be used by other threads
     }
   
     return;
@@ -596,9 +576,8 @@ void taos_free_result(TAOS_RES *res) {
   if ((pCmd->command == TSDB_SQL_SELECT ||
        pCmd->command == TSDB_SQL_SHOW ||
        pCmd->command == TSDB_SQL_RETRIEVE ||
-       pCmd->command == TSDB_SQL_FETCH) && pRes->code == TSDB_CODE_SUCCESS &&
-       ((pCmd->command < TSDB_SQL_LOCAL && pRes->completed == false) ||
-       (pCmd->command == TSDB_SQL_SELECT && pSql->pStream == NULL && pTableMetaInfo->pTableMeta != NULL))) {
+       pCmd->command == TSDB_SQL_FETCH) && pRes->code == TSDB_CODE_SUCCESS && pRes->completed == false &&
+       (pCmd->command == TSDB_SQL_SELECT && pSql->pStream == NULL && pTableMetaInfo->pTableMeta != NULL)) {
     pCmd->command = (pCmd->command > TSDB_SQL_MGMT) ? TSDB_SQL_RETRIEVE : TSDB_SQL_FETCH;
 
     tscTrace("%p send msg to free qhandle in vnode, code:%d, numOfRows:%d, command:%s", pSql, pRes->code, pRes->numOfRows,

src/query/inc/qfill.h

@@ -45,12 +45,13 @@ typedef struct SFillInfo {
   int32_t numOfCols;            // number of columns, including the tags columns
   int32_t rowSize;              // size of each row
   char ** pTags;                // tags value for current interpolation
-  
   int64_t slidingTime;          // sliding value to determine the number of result for a given time window
   char *  prevValues;           // previous row of data, to generate the interpolation results
   char *  nextValues;           // next row of data
-  SFillColInfo* pFillCol;       // column info for fill operations
   char**  pData;                // original result data block involved in filling data
+  int32_t capacityInRows;       // data buffer size in rows
+  
+  SFillColInfo* pFillCol;       // column info for fill operations
 } SFillInfo;
 
 typedef struct SPoint {

src/query/src/qfill.c

@@ -79,7 +79,7 @@ SFillInfo* taosInitFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_
   int32_t rowsize = 0;
   for (int32_t i = 0; i < numOfCols; ++i) {
     int32_t bytes = pFillInfo->pFillCol[i].col.bytes;
-    pFillInfo->pData[i] = calloc(1, sizeof(tFilePage) + bytes * capacity);
+    pFillInfo->pData[i] = calloc(1, bytes * capacity);
     
     rowsize += bytes;
   }
@@ -89,6 +89,8 @@ SFillInfo* taosInitFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_
   }
   
   pFillInfo->rowSize = rowsize;
+  pFillInfo->capacityInRows = capacity;
+  
   return pFillInfo;
 }
 
@@ -119,6 +121,17 @@ void taosFillSetStartInfo(SFillInfo* pFillInfo, int32_t numOfRows, TSKEY endKey)
   pFillInfo->rowIdx    = 0;
   pFillInfo->endKey    = endKey;
   pFillInfo->numOfRows = numOfRows;
+  
+  // ensure the space
+  if (pFillInfo->capacityInRows < numOfRows) {
+    for(int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
+      char* tmp = realloc(pFillInfo->pData[i], numOfRows*pFillInfo->pFillCol[i].col.bytes);
+      assert(tmp != NULL); // todo handle error
+      
+      memset(tmp, 0, numOfRows*pFillInfo->pFillCol[i].col.bytes);
+      pFillInfo->pData[i] = tmp;
+    }
+  }
 }
 
 void taosFillCopyInputDataFromFilePage(SFillInfo* pFillInfo, tFilePage** pInput) {