enh(query): add more information for the result of show tables.

include/libs/executor/executor.h

@@ -32,6 +32,7 @@ typedef struct SReadHandle {
   void* reader;
   void* meta;
   void* config;
+  void* vnode;
 } SReadHandle;
 
 #define STREAM_DATA_TYPE_SUBMIT_BLOCK 0x1

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

@@ -142,6 +142,7 @@ static const SInfosTableSchema userTblsSchema[] = {
     {.name = "vgroup_id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
     {.name = "ttl", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
     {.name = "table_comment", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
+    {.name = "type", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
 };
 
 static const SInfosTableSchema userTblDistSchema[] = {

source/dnode/vnode/inc/vnode.h

@@ -68,6 +68,7 @@ void    vnodeStop(SVnode *pVnode);
 
 int64_t vnodeGetSyncHandle(SVnode *pVnode);
 void    vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot);
+void    vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId);
 
 // meta
 typedef struct SMeta       SMeta;  // todo: remove

source/dnode/vnode/src/meta/metaTable.c

@@ -88,7 +88,7 @@ int metaCreateTable(SMeta *pMeta, int64_t version, SVCreateTbReq *pReq) {
 
   // preprocess req
   pReq->uid = tGenIdPI64();
-  pReq->ctime = taosGetTimestampSec();
+  pReq->ctime = taosGetTimestampMs();
 
   // validate req
   metaReaderInit(&mr, pMeta->pVnode, 0);

source/dnode/vnode/src/vnd/vnodeQuery.c

@@ -136,3 +136,13 @@ int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad) {
   pLoad->numOfBatchInsertSuccessReqs = 4;
   return 0;
 }
+
+void vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId) {
+  if (dbname) {
+    *dbname = pVnode->config.dbname;
+  }
+
+  if (vgId) {
+    *vgId = TD_VID(pVnode);
+  }
+}
\ No newline at end of file

source/dnode/vnode/src/vnd/vnodeSvr.c

@@ -144,7 +144,7 @@ _err:
 
 int vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
   vTrace("message in vnode query queue is processing");
-  SReadHandle handle = {.reader = pVnode->pTsdb, .meta = pVnode->pMeta, .config = &pVnode->config};
+  SReadHandle handle = {.reader = pVnode->pTsdb, .meta = pVnode->pMeta, .config = &pVnode->config, .vnode = pVnode};
 
   switch (pMsg->msgType) {
     case TDMT_VND_QUERY:

source/libs/executor/inc/executorimpl.h

@@ -380,7 +380,7 @@ typedef struct SStreamBlockScanInfo {
 typedef struct SSysTableScanInfo {
   union {
     void* pTransporter;
-    void* readHandle;
+    SReadHandle readHandle;
   };
 
   SRetrieveMetaTableRsp* pRsp;

source/libs/executor/src/executorimpl.c

@@ -6497,7 +6497,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       SArray* colList = extractScanColumnId(pScanNode->pScanCols);
 
       SOperatorInfo* pOperator = createSysTableScanOperatorInfo(
-          pHandle->meta, pResBlock, &pScanNode->tableName, pScanNode->node.pConditions, pSysScanPhyNode->mgmtEpSet,
+          pHandle, pResBlock, &pScanNode->tableName, pScanNode->node.pConditions, pSysScanPhyNode->mgmtEpSet,
           colList, pTaskInfo, pSysScanPhyNode->showRewrite, pSysScanPhyNode->accountId);
       return pOperator;
     } else {

source/libs/executor/src/scanoperator.c

@@ -811,7 +811,7 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
   const char* name = tNameGetTableName(&pInfo->name);
   if (strncasecmp(name, TSDB_INS_TABLE_USER_TABLES, TSDB_TABLE_FNAME_LEN) == 0) {
     if (pInfo->pCur == NULL) {
-      pInfo->pCur = metaOpenTbCursor(pInfo->readHandle);
+      pInfo->pCur = metaOpenTbCursor(pInfo->readHandle.meta);
     }
 
     blockDataCleanup(pInfo->pRes);
@@ -819,32 +819,93 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
     int32_t          tableNameSlotId = 1;
     SColumnInfoData* pTableNameCol = taosArrayGet(pInfo->pRes->pDataBlock, tableNameSlotId);
 
-    char*   tb = NULL;
     int32_t numOfRows = 0;
 
+    const char* db = NULL;
+    int32_t vgId = 0;
+    vnodeGetInfo(pInfo->readHandle.vnode, &db, &vgId);
+
+    SName sn = {0};
+    char dbname[TSDB_DB_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
+    tNameFromString(&sn, db, T_NAME_ACCT|T_NAME_DB);
+
+    tNameGetDbName(&sn, varDataVal(dbname));
+    varDataSetLen(dbname, strlen(varDataVal(dbname)));
+
     char n[TSDB_TABLE_NAME_LEN] = {0};
     while (metaTbCursorNext(pInfo->pCur) == 0) {
       STR_TO_VARSTR(n, pInfo->pCur->mr.me.name);
       colDataAppend(pTableNameCol, numOfRows, n, false);
-      numOfRows += 1;
-      if (numOfRows >= pInfo->capacity) {
-        break;
+
+      int32_t tableType = pInfo->pCur->mr.me.type;
+
+      // database name
+      SColumnInfoData* pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 0);
+      colDataAppend(pColInfoData, numOfRows, dbname, false);
+
+      // vgId
+      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 6);
+      colDataAppend(pColInfoData, numOfRows, (char*) &vgId, false);
+
+      // table comment
+      // todo: set the correct comment
+      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 8);
+      colDataAppendNULL(pColInfoData, numOfRows);
+
+      char typestr[256] = {0};
+      if (tableType == TSDB_CHILD_TABLE) {
+        SMetaReader mr = {0};
+
+        metaReaderInit(&mr, pInfo->readHandle.meta, 0);
+//        metaGetTableEntryByUid(&mr, pInfo->pCur->mr.me.ctbEntry.suid);
+        metaReaderClear(&mr);
+
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 3);
+        colDataAppend(pColInfoData, numOfRows,  (char*) &mr.me.stbEntry.schema.nCols, false);
+
+        // create time
+        int64_t ts = pInfo->pCur->mr.me.ctbEntry.ctime;
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 2);
+        colDataAppend(pColInfoData, numOfRows, (char*) &ts, false);
+
+        // uid
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 5);
+        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.uid, false);
+
+        // ttl
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 7);
+        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ctbEntry.ttlDays, false);
+
+        STR_TO_VARSTR(typestr, "CHILD_TABLE");
+      } else if (tableType == TSDB_NORMAL_TABLE) {
+        // create time
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 2);
+        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ntbEntry.ctime, false);
+
+        // number of columns
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 3);
+        colDataAppend(pColInfoData, numOfRows,  (char*) &pInfo->pCur->mr.me.ntbEntry.schema.nCols, false);
+
+        // super table name
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 4);
+        colDataAppendNULL(pColInfoData, numOfRows);
+
+        // uid
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 5);
+        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.uid, false);
+
+        // ttl
+        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 7);
+        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ntbEntry.ttlDays, false);
+
+        STR_TO_VARSTR(typestr, "NORMAL_TABLE");
       }
 
-      for (int32_t i = 0; i < pInfo->pRes->info.numOfCols; ++i) {
-        if (i == tableNameSlotId) {
-          continue;
-        }
+      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 9);
+      colDataAppend(pColInfoData, numOfRows, typestr, false);
 
-        SColumnInfoData* pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, i);
-        int64_t          tmp = 0;
-        char             t[10] = {0};
-        STR_TO_VARSTR(t, "_");  // TODO
-        if (IS_VAR_DATA_TYPE(pColInfoData->info.type)) {
-          colDataAppend(pColInfoData, numOfRows, t, false);
-        } else {
-          colDataAppend(pColInfoData, numOfRows, (char*)&tmp, false);
-        }
+      if (++numOfRows >= pInfo->capacity) {
+        break;
       }
     }
 
@@ -923,7 +984,7 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
   }
 }
 
-SOperatorInfo* createSysTableScanOperatorInfo(void* pSysTableReadHandle, SSDataBlock* pResBlock, const SName* pName,
+SOperatorInfo* createSysTableScanOperatorInfo(void* readHandle, SSDataBlock* pResBlock, const SName* pName,
                                               SNode* pCondition, SEpSet epset, SArray* colList,
                                               SExecTaskInfo* pTaskInfo, bool showRewrite, int32_t accountId) {
   SSysTableScanInfo* pInfo = taosMemoryCalloc(1, sizeof(SSysTableScanInfo));
@@ -945,7 +1006,7 @@ SOperatorInfo* createSysTableScanOperatorInfo(void* pSysTableReadHandle, SSDataB
   tNameAssign(&pInfo->name, pName);
   const char* name = tNameGetTableName(&pInfo->name);
   if (strncasecmp(name, TSDB_INS_TABLE_USER_TABLES, TSDB_TABLE_FNAME_LEN) == 0) {
-    pInfo->readHandle = pSysTableReadHandle;
+    pInfo->readHandle = *(SReadHandle*) readHandle;
     blockDataEnsureCapacity(pInfo->pRes, pInfo->capacity);
   } else {
     tsem_init(&pInfo->ready, 0, 0);