Merge branch 'develop' of https://github.com/taosdata/TDengine into develop

src/connector/python/linux/python2/taos/cinterface.py

@@ -146,6 +146,7 @@ class CTaosInterface(object):
     libtaos.taos_errstr.restype = ctypes.c_char_p
     libtaos.taos_subscribe.restype = ctypes.c_void_p
     libtaos.taos_consume.restype = ctypes.c_void_p
+    libtaos.taos_fetch_lengths.restype = ctypes.c_void_p
 
     def __init__(self, config=None):
         '''
@@ -314,6 +315,8 @@ class CTaosInterface(object):
 
         isMicro = (CTaosInterface.libtaos.taos_result_precision(result) == FieldType.C_TIMESTAMP_MICRO)
         blocks = [None] * len(fields)
+        fieldL = CTaosInterface.libtaos.taos_fetch_lengths(result)
+        fieldLen = [ele for ele in ctypes.cast(fieldL,  ctypes.POINTER(ctypes.c_int))[:len(fields)]]
         for i in range(len(fields)):
             data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i]
             if data == None:
@@ -323,7 +326,7 @@ class CTaosInterface(object):
             if fields[i]['type'] not in _CONVERT_FUNC:
                 raise DatabaseError("Invalid data type returned from database")
             
-            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fields[i]['bytes'], isMicro)
+            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fieldLen[i], isMicro)
 
         return blocks, abs(num_of_rows)
 

src/connector/python/windows/python2/taos/cinterface.py

@@ -146,6 +146,7 @@ class CTaosInterface(object):
     libtaos.taos_errstr.restype = ctypes.c_char_p
     libtaos.taos_subscribe.restype = ctypes.c_void_p
     libtaos.taos_consume.restype = ctypes.c_void_p
+    libtaos.taos_fetch_lengths.restype = ctypes.c_void_p
 
     def __init__(self, config=None):
         '''
@@ -314,6 +315,8 @@ class CTaosInterface(object):
 
         isMicro = (CTaosInterface.libtaos.taos_result_precision(result) == FieldType.C_TIMESTAMP_MICRO)
         blocks = [None] * len(fields)
+        fieldL = CTaosInterface.libtaos.taos_fetch_lengths(result)
+        fieldLen = [ele for ele in ctypes.cast(fieldL,  ctypes.POINTER(ctypes.c_int))[:len(fields)]]
         for i in range(len(fields)):
             data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i]
             if data == None:
@@ -323,7 +326,7 @@ class CTaosInterface(object):
             if fields[i]['type'] not in _CONVERT_FUNC:
                 raise DatabaseError("Invalid data type returned from database")
             
-            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fields[i]['bytes'], isMicro)
+            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fieldLen[i], isMicro)
 
         return blocks, abs(num_of_rows)
 

src/connector/python/windows/python3/taos/cinterface.py

@@ -146,6 +146,7 @@ class CTaosInterface(object):
     libtaos.taos_errstr.restype = ctypes.c_char_p
     libtaos.taos_subscribe.restype = ctypes.c_void_p
     libtaos.taos_consume.restype = ctypes.c_void_p
+    libtaos.taos_fetch_lengths.restype = ctypes.c_void_p
 
     def __init__(self, config=None):
         '''
@@ -314,6 +315,8 @@ class CTaosInterface(object):
 
         isMicro = (CTaosInterface.libtaos.taos_result_precision(result) == FieldType.C_TIMESTAMP_MICRO)
         blocks = [None] * len(fields)
+        fieldL = CTaosInterface.libtaos.taos_fetch_lengths(result)
+        fieldLen = [ele for ele in ctypes.cast(fieldL,  ctypes.POINTER(ctypes.c_int))[:len(fields)]]
         for i in range(len(fields)):
             data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i]
             if data == None:
@@ -323,7 +326,7 @@ class CTaosInterface(object):
             if fields[i]['type'] not in _CONVERT_FUNC:
                 raise DatabaseError("Invalid data type returned from database")
             
-            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fields[i]['bytes'], isMicro)
+            blocks[i] = _CONVERT_FUNC[fields[i]['type']](data, num_of_rows, fieldLen[i], isMicro)
 
         return blocks, abs(num_of_rows)
 

src/plugins/http/src/gcJson.c

@@ -121,10 +121,11 @@ bool gcBuildQueryJson(HttpContext *pContext, HttpSqlCmd *cmd, TAOS_RES *result,
 
   for (int k = 0; k < numOfRows; ++k) {
     TAOS_ROW row = taos_fetch_row(result);
+    int32_t* length = taos_fetch_lengths(result);
 
     // for group by
     if (groupFields != -1) {
-      char target[HTTP_GC_TARGET_SIZE];
+      char target[HTTP_GC_TARGET_SIZE] = {0};
       int len;
       len = snprintf(target,HTTP_GC_TARGET_SIZE,"%s{",aliasBuffer);
       for (int i = dataFields + 1; i<num_fields; i++){
@@ -150,7 +151,11 @@ bool gcBuildQueryJson(HttpContext *pContext, HttpSqlCmd *cmd, TAOS_RES *result,
             break;
           case TSDB_DATA_TYPE_BINARY:
           case TSDB_DATA_TYPE_NCHAR:
-            len += snprintf(target + len, HTTP_GC_TARGET_SIZE - len, "%s:%s", fields[i].name, (char *)row[i]);
+            if (row[i]!= NULL){            
+              len += snprintf(target + len, HTTP_GC_TARGET_SIZE - len, "%s:", fields[i].name);
+              memcpy(target + len, (char *) row[i], length[i]);
+              len = strlen(target);
+            }
             break;
           default:
             len += snprintf(target + len, HTTP_GC_TARGET_SIZE - len, "%s:%s", fields[i].name, "-");

src/tsdb/inc/tsdbMain.h

@@ -95,6 +95,7 @@ typedef struct STable {
   void *         streamHandler;  // TODO
   TSKEY          lastKey;        // lastkey inserted in this table, initialized as 0, TODO: make a structure
   struct STable *next;           // TODO: remove the next
+  struct STable *prev;
 } STable;
 
 #define TSDB_GET_TABLE_LAST_KEY(pTable) ((pTable)->lastKey)

src/tsdb/src/tsdbMain.c

@@ -90,6 +90,7 @@ void tsdbFreeCfg(STsdbCfg *pCfg) {
 int32_t tsdbCreateRepo(char *rootDir, STsdbCfg *pCfg, void *limiter /* TODO */) {
 
   if (mkdir(rootDir, 0755) != 0) {
+    tsdbError("id %d: failed to create rootDir! rootDir %s, reason %s", pCfg->tsdbId, rootDir, strerror(errno));
     if (errno == EACCES) {
       return TSDB_CODE_NO_DISK_PERMISSIONS;
     } else if (errno == ENOSPC) {
@@ -611,14 +612,20 @@ static int32_t tsdbCheckAndSetDefaultCfg(STsdbCfg *pCfg) {
   if (pCfg->precision == -1) {
     pCfg->precision = TSDB_DEFAULT_PRECISION;
   } else {
-    if (!IS_VALID_PRECISION(pCfg->precision)) return -1;
+    if (!IS_VALID_PRECISION(pCfg->precision)) {
+      tsdbError("id %d: invalid precision configuration! precision %d", pCfg->tsdbId, pCfg->precision);
+      return -1;
+    }
   }
 
   // Check compression
   if (pCfg->compression == -1) {
     pCfg->compression = TSDB_DEFAULT_COMPRESSION;
   } else {
-    if (!IS_VALID_COMPRESSION(pCfg->compression)) return -1;
+    if (!IS_VALID_COMPRESSION(pCfg->compression)) {
+      tsdbError("id %d: invalid compression configuration! compression %d", pCfg->tsdbId, pCfg->precision);
+      return -1;
+    }
   }
 
   // Check tsdbId
@@ -628,30 +635,50 @@ static int32_t tsdbCheckAndSetDefaultCfg(STsdbCfg *pCfg) {
   if (pCfg->maxTables == -1) {
     pCfg->maxTables = TSDB_DEFAULT_TABLES;
   } else {
-    if (pCfg->maxTables < TSDB_MIN_TABLES || pCfg->maxTables > TSDB_MAX_TABLES) return -1;
+    if (pCfg->maxTables < TSDB_MIN_TABLES || pCfg->maxTables > TSDB_MAX_TABLES) {
+      tsdbError("id %d: invalid maxTables configuration! maxTables %d TSDB_MIN_TABLES %d TSDB_MAX_TABLES %d",
+                pCfg->tsdbId, pCfg->maxTables, TSDB_MIN_TABLES, TSDB_MAX_TABLES);
+      return -1;
+    }
   }
 
   // Check daysPerFile
   if (pCfg->daysPerFile == -1) {
     pCfg->daysPerFile = TSDB_DEFAULT_DAYS_PER_FILE;
   } else {
-    if (pCfg->daysPerFile < TSDB_MIN_DAYS_PER_FILE || pCfg->daysPerFile > TSDB_MAX_DAYS_PER_FILE) return -1;
+    if (pCfg->daysPerFile < TSDB_MIN_DAYS_PER_FILE || pCfg->daysPerFile > TSDB_MAX_DAYS_PER_FILE) {
+      tsdbError(
+          "id %d: invalid daysPerFile configuration! daysPerFile %d TSDB_MIN_DAYS_PER_FILE %d TSDB_MAX_DAYS_PER_FILE "
+          "%d",
+          pCfg->tsdbId, pCfg->daysPerFile, TSDB_MIN_DAYS_PER_FILE, TSDB_MAX_DAYS_PER_FILE);
+      return -1;
+    }
   }
 
   // Check minRowsPerFileBlock and maxRowsPerFileBlock
   if (pCfg->minRowsPerFileBlock == -1) {
     pCfg->minRowsPerFileBlock = TSDB_DEFAULT_MIN_ROW_FBLOCK;
   } else {
-    if (pCfg->minRowsPerFileBlock < TSDB_MIN_MIN_ROW_FBLOCK || pCfg->minRowsPerFileBlock > TSDB_MAX_MIN_ROW_FBLOCK)
+    if (pCfg->minRowsPerFileBlock < TSDB_MIN_MIN_ROW_FBLOCK || pCfg->minRowsPerFileBlock > TSDB_MAX_MIN_ROW_FBLOCK) {
+      tsdbError(
+          "id %d: invalid minRowsPerFileBlock configuration! minRowsPerFileBlock %d TSDB_MIN_MIN_ROW_FBLOCK %d "
+          "TSDB_MAX_MIN_ROW_FBLOCK %d",
+          pCfg->tsdbId, pCfg->minRowsPerFileBlock, TSDB_MIN_MIN_ROW_FBLOCK, TSDB_MAX_MIN_ROW_FBLOCK);
       return -1;
     }
+  }
 
   if (pCfg->maxRowsPerFileBlock == -1) {
     pCfg->maxRowsPerFileBlock = TSDB_DEFAULT_MAX_ROW_FBLOCK;
   } else {
-    if (pCfg->maxRowsPerFileBlock < TSDB_MIN_MAX_ROW_FBLOCK || pCfg->maxRowsPerFileBlock > TSDB_MAX_MAX_ROW_FBLOCK)
+    if (pCfg->maxRowsPerFileBlock < TSDB_MIN_MAX_ROW_FBLOCK || pCfg->maxRowsPerFileBlock > TSDB_MAX_MAX_ROW_FBLOCK) {
+      tsdbError(
+          "id %d: invalid maxRowsPerFileBlock configuration! maxRowsPerFileBlock %d TSDB_MIN_MAX_ROW_FBLOCK %d "
+          "TSDB_MAX_MAX_ROW_FBLOCK %d",
+          pCfg->tsdbId, pCfg->maxRowsPerFileBlock, TSDB_MIN_MIN_ROW_FBLOCK, TSDB_MAX_MIN_ROW_FBLOCK);
       return -1;
     }
+  }
 
   if (pCfg->minRowsPerFileBlock > pCfg->maxRowsPerFileBlock) return -1;
 
@@ -659,7 +686,13 @@ static int32_t tsdbCheckAndSetDefaultCfg(STsdbCfg *pCfg) {
   if (pCfg->keep == -1) {
     pCfg->keep = TSDB_DEFAULT_KEEP;
   } else {
-    if (pCfg->keep < TSDB_MIN_KEEP || pCfg->keep > TSDB_MAX_KEEP) return -1;
+    if (pCfg->keep < TSDB_MIN_KEEP || pCfg->keep > TSDB_MAX_KEEP) {
+      tsdbError(
+          "id %d: invalid keep configuration! keep %d TSDB_MIN_KEEP %d "
+          "TSDB_MAX_KEEP %d",
+          pCfg->tsdbId, pCfg->keep, TSDB_MIN_KEEP, TSDB_MAX_KEEP);
+      return -1;
+    }
   }
 
   return 0;
@@ -716,15 +749,22 @@ static int32_t tsdbGetDataDirName(STsdbRepo *pRepo, char *fname) {
 }
 
 static int32_t tsdbSetRepoEnv(STsdbRepo *pRepo) {
+  STsdbCfg *pCfg = &pRepo->config;
   if (tsdbSaveConfig(pRepo) < 0) return -1;
 
   char dirName[128] = "\0";
   if (tsdbGetDataDirName(pRepo, dirName) < 0) return -1;
 
   if (mkdir(dirName, 0755) < 0) {
+    tsdbError("id %d: failed to create repository directory! reason %s", pRepo->config.tsdbId, strerror(errno));
     return -1;
   }
 
+  tsdbError(
+      "id %d: set up tsdb environment succeed! cacheBlockSize %d, totalBlocks %d, maxTables %d, daysPerFile %d, keep "
+      "%d, minRowsPerFileBlock %d, maxRowsPerFileBlock %d, precision %d, compression%d",
+      pRepo->config.tsdbId, pCfg->cacheBlockSize, pCfg->totalBlocks, pCfg->maxTables, pCfg->daysPerFile, pCfg->keep,
+      pCfg->minRowsPerFileBlock, pCfg->maxRowsPerFileBlock, pCfg->precision, pCfg->compression);
   return 0;
 }
 
@@ -811,7 +851,8 @@ static int32_t tsdbInsertDataToTable(TsdbRepoT *repo, SSubmitBlk *pBlock, TSKEY
   STableId tableId = {.uid = pBlock->uid, .tid = pBlock->tid};
   STable *pTable = tsdbIsValidTableToInsert(pRepo->tsdbMeta, tableId);
   if (pTable == NULL) {
-    tsdbError("failed to get table for insert, uid:%" PRIu64 ", tid:%d", tableId.uid, tableId.tid);
+    tsdbError("id %d: failed to get table for insert, uid:%" PRIu64 ", tid:%d", pRepo->config.tsdbId, pBlock->uid,
+              pBlock->tid);
     return TSDB_CODE_INVALID_TABLE_ID;
   }
 

src/tsdb/src/tsdbMeta.c

@@ -13,10 +13,10 @@
 static int     tsdbFreeTable(STable *pTable);
 static int32_t tsdbCheckTableCfg(STableCfg *pCfg);
 static int     tsdbAddTableToMeta(STsdbMeta *pMeta, STable *pTable, bool addIdx);
-static int     tsdbAddTableIntoMap(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbEstimateTableEncodeSize(STable *pTable);
+static int     tsdbRemoveTableFromMeta(STsdbMeta *pMeta, STable *pTable);
 
 /**
  * Encode a TSDB table object as a binary content
@@ -375,21 +375,9 @@ int32_t tsdbDropTableImpl(STsdbMeta *pMeta, STableId tableId) {
   STable *pTable = tsdbGetTableByUid(pMeta, tableId.uid);
   if (pTable == NULL) return -1;
 
-  if (pTable->type == TSDB_SUPER_TABLE) {
-    // TODO: implement drop super table
-    return -1;
-  } else {
-    pMeta->tables[pTable->tableId.tid] = NULL;
-    pMeta->nTables--;
-    assert(pMeta->nTables >= 0);
-    if (pTable->type == TSDB_CHILD_TABLE) {
-      tsdbRemoveTableFromIndex(pMeta, pTable);
-    }
-
-    tsdbFreeTable(pTable);
-  }
-
+  if (tsdbRemoveTableFromMeta(pMeta, pTable) < 0) return -1;
   return 0;
+
 }
 
 // int32_t tsdbInsertRowToTableImpl(SSkipListNode *pNode, STable *pTable) {
@@ -445,10 +433,12 @@ static int tsdbAddTableToMeta(STsdbMeta *pMeta, STable *pTable, bool addIdx) {
     if (pMeta->superList == NULL) {
       pMeta->superList = pTable;
       pTable->next = NULL;
+      pTable->prev = NULL;
     } else {
-      STable *pTemp = pMeta->superList;
+      pTable->next = pMeta->superList;
+      pTable->prev = NULL;
+      pTable->next->prev = pTable;
       pMeta->superList = pTable;
-      pTable->next = pTemp;
     }
   } else {
     // add non-super table to the array
@@ -467,22 +457,50 @@ static int tsdbAddTableToMeta(STsdbMeta *pMeta, STable *pTable, bool addIdx) {
     if (bytes > pMeta->maxRowBytes) pMeta->maxRowBytes = bytes;
   }
 
-  return tsdbAddTableIntoMap(pMeta, pTable);
+  if (taosHashPut(pMeta->map, (char *)(&pTable->tableId.uid), sizeof(pTable->tableId.uid), (void *)(&pTable), sizeof(pTable)) < 0) {
+    return -1;
+  }
+  return 0;
 }
 
-// static int tsdbRemoveTableFromMeta(STsdbMeta *pMeta, STable *pTable) {
-//   // TODO
-//   return 0;
-// }
+static int tsdbRemoveTableFromMeta(STsdbMeta *pMeta, STable *pTable) {
+  if (pTable->type == TSDB_SUPER_TABLE) {
+    SSkipListIterator  *pIter = tSkipListCreateIter(pTable->pIndex);
+    while (tSkipListIterNext(pIter)) {
+      STable *tTable = *(STable **)SL_GET_NODE_DATA(tSkipListIterGet(pIter));
+      ASSERT(tTable != NULL && tTable->type == TSDB_CHILD_TABLE);
 
-static int tsdbAddTableIntoMap(STsdbMeta *pMeta, STable *pTable) {
-  // TODO: add the table to the map
-  int64_t uid = pTable->tableId.uid;
-  if (taosHashPut(pMeta->map, (char *)(&uid), sizeof(uid), (void *)(&pTable), sizeof(pTable)) < 0) {
-    return -1;
+      pMeta->tables[tTable->tableId.tid] = NULL;
+      taosHashRemove(pMeta->map, (char *)(&(pTable->tableId.uid)), sizeof(pTable->tableId.uid));
+      pMeta->nTables--;
+      tsdbFreeTable(tTable);
+    }
+
+    tSkipListDestroyIter(pIter);
+
+    // TODO: Remove the table from the list
+    if (pTable->prev != NULL) {
+      pTable->prev->next = pTable->next;
+      if (pTable->next != NULL) {
+        pTable->next->prev = pTable->prev;
+      }
+    } else {
+      pMeta->superList = pTable->next;
+    }
+  } else {
+    pMeta->tables[pTable->tableId.tid] = NULL;
+    if (pTable->type == TSDB_CHILD_TABLE) {
+      tsdbRemoveTableFromIndex(pMeta, pTable);
     }
+
+    pMeta->nTables--;
+  }
+
+  tsdbFreeTable(pTable);
+  taosHashRemove(pMeta->map, (char *)(&(pTable->tableId.uid)), sizeof(pTable->tableId.uid));
   return 0;
 }
+
 static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable) {
   assert(pTable->type == TSDB_CHILD_TABLE && pTable != NULL);
   STable* pSTable = tsdbGetTableByUid(pMeta, pTable->superUid);