fix: super table info not removed after dropped by another client

src/client/inc/tsclient.h

@@ -294,6 +294,7 @@ typedef struct {
   SQueryInfo  *active;         // current active query info
   int32_t      batchSize;      // for parameter ('?') binding and batch processing
   int32_t      resColumnId;
+  SArray      *hashedTableNames;
 } SSqlCmd;
 
 typedef struct {

src/client/src/tscAsync.c

@@ -336,6 +336,7 @@ void tscAsyncResultOnError(SSqlObj* pSql) {
 }
 
 int tscSendMsgToServer(SSqlObj *pSql);
+void tscClearTableMeta(SSqlObj *pSql);
 
 void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
   SSqlObj* pSql = (SSqlObj*)taosAcquireRef(tscObjRef, (int64_t)param);
@@ -355,7 +356,11 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
       size_t sz = strlen(tscGetErrorMsgPayload(&sub->cmd));
       tscAllocPayload(&pSql->cmd, (int)sz + 1); 
       memcpy(tscGetErrorMsgPayload(&pSql->cmd), tscGetErrorMsgPayload(&sub->cmd), sz);
-    } 
+    } else if (code == TSDB_CODE_MND_INVALID_TABLE_NAME) {
+      if (sub->cmd.command == TSDB_SQL_MULTI_META) {
+        tscClearTableMeta(pSql);
+      }
+    }
     goto _error;
   }
 
@@ -421,3 +426,13 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
   tscAsyncResultOnError(pSql);
   taosReleaseRef(tscObjRef, pSql->self);
 }
+
+void tscClearTableMeta(SSqlObj *pSql) {
+  SSqlCmd* pCmd = &pSql->cmd;
+
+  int32_t n = taosArrayGetSize(pCmd->hashedTableNames);
+  for (int32_t i = 0; i < n; i++) {
+    char *t = taosArrayGetP(pCmd->hashedTableNames, i);
+    taosHashRemove(UTIL_GET_TABLEMETA(pSql), t, strlen(t));
+  }
+}

src/client/src/tscSQLParser.c

@@ -9434,6 +9434,7 @@ int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   SQueryInfo* pQueryInfo = tscGetQueryInfo(pCmd);
 
   pCmd->pTableMetaMap = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
+  pCmd->hashedTableNames = taosArrayInit(4, POINTER_BYTES);
 
   tableNameList = taosArrayInit(4, sizeof(SName));
   size_t size = taosArrayGetSize(pInfo->list);
@@ -9501,6 +9502,9 @@ int32_t loadAllTableMeta(SSqlObj* pSql, struct SSqlInfo* pInfo) {
           char* t = strdup(name);
           taosArrayPush(pVgroupList, &t);
           tscDebug("0x%"PRIx64" failed to retrieve stable %s vgroup id list in cache, try fetch from mnode", pSql->self, name);
+
+          char* tb = strdup(name);
+          taosArrayPush(pCmd->hashedTableNames, &tb);
         } else {
           tFilePage* pdata = (tFilePage*) pv;
           pVgroupIdList = taosArrayInit((size_t) pdata->num, sizeof(int32_t));

src/client/src/tscUtil.c

@@ -1609,6 +1609,10 @@ void destroyTableNameList(SInsertStatementParam* pInsertParam) {
   tfree(pInsertParam->pTableNameList);
 }
 
+static void freeElem(void* p) {
+  tfree(*(char**)p);
+}
+
 void tscResetSqlCmd(SSqlCmd* pCmd, bool clearCachedMeta, uint64_t id) {
   SSqlObj *pSql = (SSqlObj*)taosAcquireRef(tscObjRef, id);
   pCmd->command   = 0;
@@ -1624,6 +1628,10 @@ void tscResetSqlCmd(SSqlCmd* pCmd, bool clearCachedMeta, uint64_t id) {
   tfree(pCmd->insertParam.tagData.data);
   pCmd->insertParam.tagData.dataLen = 0;
 
+  if (pCmd->hashedTableNames) {
+    taosArrayDestroyEx(&pCmd->hashedTableNames, freeElem);
+  }
+
   tscFreeQueryInfo(pCmd, clearCachedMeta, id);
   pCmd->pTableMetaMap = tscCleanupTableMetaMap(pCmd->pTableMetaMap);
   taosReleaseRef(tscObjRef, id);