more code and case change

include/libs/executor/storageapi.h

@@ -191,6 +191,12 @@ typedef struct TsdReader {
 
   void         (*tsdSetFilesetDelimited)(void* pReader);
   void         (*tsdSetSetNotifyCb)(void* pReader, TsdReaderNotifyCbFn notifyFn, void* param);
+
+  // for fileset query
+  void *(*openFilesetReadCursor)(void *pVnode);
+  void *(*nextFilesetReadCursor)(void *cursor);
+  void (*closeFilesetReadCursor)(void *pReader);
+  
 } TsdReader;
 
 typedef struct SStoreCacheReader {
@@ -400,7 +406,8 @@ typedef struct SStateStore {
 
   int32_t (*streamStateCountWinAddIfNotExist)(SStreamState* pState, SSessionKey* pKey, COUNT_TYPE winCount,
                                               void** ppVal, int32_t* pVLen, int32_t* pWinCode);
-  int32_t (*streamStateCountWinAdd)(SStreamState* pState, SSessionKey* pKey, COUNT_TYPE winCount, void** pVal, int32_t* pVLen);
+  int32_t (*streamStateCountWinAdd)(SStreamState* pState, SSessionKey* pKey, COUNT_TYPE winCount, void** pVal,
+                                    int32_t* pVLen);
 
   int32_t (*updateInfoInit)(int64_t interval, int32_t precision, int64_t watermark, bool igUp, int8_t pkType,
                             int32_t pkLen, SUpdateInfo** ppInfo);

source/libs/executor/src/sysscanoperator.c

@@ -1989,9 +1989,183 @@ static SSDataBlock* sysTableScanUserSTables(SOperatorInfo* pOperator) {
   return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
 }
 
-static SSDataBlock* sysTableScanUserFileSets(SOperatorInfo* pOperator) {
+static int32_t doSetQueryFileSetRow() {
+  int32_t code = TSDB_CODE_SUCCESS;
+  int32_t lino = 0;
+
   // TODO
-  ASSERT(0);
+
+_exit:
+  return code;
+}
+
+static SSDataBlock* sysTableBuildUserFileSets(SOperatorInfo* pOperator) {
+  int32_t            code = TSDB_CODE_SUCCESS;
+  int32_t            lino = 0;
+  SExecTaskInfo*     pTaskInfo = pOperator->pTaskInfo;
+  SStorageAPI*       pAPI = &pTaskInfo->storageAPI;
+  SSysTableScanInfo* pInfo = pOperator->info;
+  SSDataBlock*       p = NULL;
+
+  // open cursor if not opened
+  // TODO: call corresponding api to open the cursor
+  if (pInfo->pCur == NULL) {
+    // pInfo->pCur = pAPI->tsdReader.openFileSetCursor(pInfo->readHandle.vnode);
+    // QUERY_CHECK_NULL(pInfo->pCur, code, lino, _end, terrno);
+  }
+
+  blockDataCleanup(pInfo->pRes);
+  int32_t numOfRows = 0;
+
+  const char* db = NULL;
+  int32_t     vgId = 0;
+  pAPI->metaFn.getBasicInfo(pInfo->readHandle.vnode, &db, &vgId, NULL, NULL);
+
+  SName sn = {0};
+  char  dbname[TSDB_DB_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
+  code = tNameFromString(&sn, db, T_NAME_ACCT | T_NAME_DB);
+  QUERY_CHECK_CODE(code, lino, _end);
+
+  code = tNameGetDbName(&sn, varDataVal(dbname));
+  QUERY_CHECK_CODE(code, lino, _end);
+
+  varDataSetLen(dbname, strlen(varDataVal(dbname)));
+
+  p = buildInfoSchemaTableMetaBlock(TSDB_INS_TABLE_FILESETS);
+  QUERY_CHECK_NULL(p, code, lino, _end, terrno);
+
+  code = blockDataEnsureCapacity(p, pOperator->resultInfo.capacity);
+  QUERY_CHECK_CODE(code, lino, _end);
+
+  char    n[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
+  int32_t ret = 0;
+
+  // loop to query each entry
+  for (;;) {
+    void* entry = pAPI->tsdReader.nextFilesetReadCursor(pInfo->pCur);
+    if (entry == NULL) {
+      break;
+    }
+
+    code = doSetQueryFileSetRow();
+    QUERY_CHECK_CODE(code, lino, _end);
+
+    if (++numOfRows >= pOperator->resultInfo.capacity) {
+      p->info.rows = numOfRows;
+      pInfo->pRes->info.rows = numOfRows;
+
+      code = relocateColumnData(pInfo->pRes, pInfo->matchInfo.pList, p->pDataBlock, false);
+      QUERY_CHECK_CODE(code, lino, _end);
+
+      code = doFilter(pInfo->pRes, pOperator->exprSupp.pFilterInfo, NULL);
+      QUERY_CHECK_CODE(code, lino, _end);
+
+      blockDataCleanup(p);
+      numOfRows = 0;
+
+      if (pInfo->pRes->info.rows > 0) {
+        pAPI->metaFn.pauseTableMetaCursor(pInfo->pCur);
+        break;
+      }
+    }
+  }
+
+#if 0
+  if (numOfRows > 0) {
+    pAPI->metaFn.pauseTableMetaCursor(pInfo->pCur);
+    p->info.rows = numOfRows;
+    pInfo->pRes->info.rows = numOfRows;
+
+    code = relocateColumnData(pInfo->pRes, pInfo->matchInfo.pList, p->pDataBlock, false);
+    QUERY_CHECK_CODE(code, lino, _end);
+
+    code = doFilter(pInfo->pRes, pOperator->exprSupp.pFilterInfo, NULL);
+    QUERY_CHECK_CODE(code, lino, _end);
+
+    blockDataCleanup(p);
+    numOfRows = 0;
+  }
+
+  blockDataDestroy(p);
+  p = NULL;
+
+  // todo temporarily free the cursor here, the true reason why the free is not valid needs to be found
+  if (ret != 0) {
+    pAPI->metaFn.closeTableMetaCursor(pInfo->pCur);
+    pInfo->pCur = NULL;
+    setOperatorCompleted(pOperator);
+  }
+
+  pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
+#endif
+
+_end:
+  if (code != TSDB_CODE_SUCCESS) {
+    qError("%s failed at line %d since %s", __func__, lino, tstrerror(code));
+    blockDataDestroy(p);
+    pTaskInfo->code = code;
+    pAPI->metaFn.closeTableMetaCursor(pInfo->pCur);
+    pInfo->pCur = NULL;
+    T_LONG_JMP(pTaskInfo->env, code);
+  }
+  return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
+}
+
+static SSDataBlock* sysTableScanUserFileSets(SOperatorInfo* pOperator) {
+  int32_t            code = TSDB_CODE_SUCCESS;
+  int32_t            lino = 0;
+  SSysTableScanInfo* pInfo = pOperator->info;
+  SExecTaskInfo*     pTaskInfo = pOperator->pTaskInfo;
+  SNode*             pCondition = pInfo->pCondition;
+
+  if (pOperator->status == OP_EXEC_DONE) {
+    return NULL;
+  }
+
+  if (pInfo->readHandle.mnd != NULL) {
+    // do nothing on mnode
+    qTrace("This operator do nothing on mnode, task id:%s", GET_TASKID(pTaskInfo));
+    return NULL;
+  } else {
+#if 0
+    if (pInfo->showRewrite == false) {
+      if (pCondition != NULL && pInfo->pIdx == NULL) {
+        SSTabFltArg arg = {
+            .pMeta = pInfo->readHandle.vnode, .pVnode = pInfo->readHandle.vnode, .pAPI = &pTaskInfo->storageAPI};
+
+        SSysTableIndex* idx = taosMemoryMalloc(sizeof(SSysTableIndex));
+        QUERY_CHECK_NULL(idx, code, lino, _end, terrno);
+        idx->init = 0;
+        idx->uids = taosArrayInit(128, sizeof(int64_t));
+        QUERY_CHECK_NULL(idx->uids, code, lino, _end, terrno);
+        idx->lastIdx = 0;
+
+        pInfo->pIdx = idx;  // set idx arg
+
+        int flt = optSysTabFilte(&arg, pCondition, idx->uids);
+        if (flt == 0) {
+          pInfo->pIdx->init = 1;
+          SSDataBlock* blk = sysTableBuildUserTablesByUids(pOperator);
+          return blk;
+        } else if ((flt == -1) || (flt == -2)) {
+          qDebug("%s failed to get sys table info by idx, scan sys table one by one", GET_TASKID(pTaskInfo));
+        }
+      } else if (pCondition != NULL && (pInfo->pIdx != NULL && pInfo->pIdx->init == 1)) {
+        SSDataBlock* blk = sysTableBuildUserTablesByUids(pOperator);
+        return blk;
+      }
+    }
+#endif
+
+    return sysTableBuildUserFileSets(pOperator);
+  }
+
+_end:
+  if (code != TSDB_CODE_SUCCESS) {
+    qError("%s failed at line %d since %s", __func__, lino, tstrerror(code));
+    pTaskInfo->code = code;
+    T_LONG_JMP(pTaskInfo->env, code);
+  }
   return NULL;
 }
 
@@ -2303,7 +2477,8 @@ int32_t createSysTableScanOperatorInfo(void* readHandle, SSystemTableScanPhysiNo
   const char* name = tNameGetTableName(&pInfo->name);
 
   if (strncasecmp(name, TSDB_INS_TABLE_TABLES, TSDB_TABLE_FNAME_LEN) == 0 ||
-      strncasecmp(name, TSDB_INS_TABLE_TAGS, TSDB_TABLE_FNAME_LEN) == 0) {
+      strncasecmp(name, TSDB_INS_TABLE_TAGS, TSDB_TABLE_FNAME_LEN) == 0 ||
+      strncasecmp(name, TSDB_INS_TABLE_FILESETS, TSDB_TABLE_FNAME_LEN) == 0) {
     pInfo->readHandle = *(SReadHandle*)readHandle;
   } else {
     if (tsem_init(&pInfo->ready, 0, 0) != TSDB_CODE_SUCCESS) {

tests/develop-test/2-query/table_count_scan.py

@@ -65,7 +65,7 @@ class TDTestCase:
 
         tdSql.query('select count(*),db_name, stable_name from information_schema.ins_tables group by db_name, stable_name;')
         tdSql.checkRows(3)
-        tdSql.checkData(0, 0, 34)
+        tdSql.checkData(0, 0, 35)
         tdSql.checkData(0, 1, 'information_schema')
         tdSql.checkData(0, 2, None)
         tdSql.checkData(1, 0, 3)

tests/script/tsim/query/sys_tbname.sim

@@ -58,7 +58,7 @@ endi
 
 sql select tbname from information_schema.ins_tables;
 print $rows $data00
-if $rows != 43 then
+if $rows != 44 then
 	return -1
 endi
 if $data00 != @ins_tables@ then

tests/script/tsim/query/tableCount.sim

@@ -53,7 +53,7 @@ sql select stable_name,count(table_name) from information_schema.ins_tables grou
 if $rows != 3 then
   return -1
 endi
-if $data01 != 40 then
+if $data01 != 41 then
   return -1
 endi
 if $data11 != 10 then
@@ -72,7 +72,7 @@ endi
 if $data11 != 5 then
   return -1
 endi
-if $data21 != 34 then
+if $data21 != 35 then
   return -1
 endi
 if $data31 != 5 then
@@ -97,7 +97,7 @@ endi
 if $data42 != 3 then
   return -1
 endi
-if $data52 != 34 then
+if $data52 != 35 then
   return -1
 endi
 if $data62 != 5 then