(query):when invalid schema version, always fetch schema

src/client/src/tscServer.c

@@ -363,6 +363,41 @@ void tscSetFqdnErrorMsg(SSqlObj* pSql, SRpcEpSet* pEpSet) {
   }
 }
 
+bool shouldRewTableMeta(SSqlObj* pSql, SRpcMsg* rpcMsg) {
+  SSqlCmd *pCmd = &pSql->cmd;
+  SQueryInfo* pQueryInfo = tscGetQueryInfo(pCmd);
+  int32_t cmd = pCmd->command;
+
+  if ((cmd != TSDB_SQL_SELECT && cmd != TSDB_SQL_UPDATE_TAGS_VAL)) {
+    return false;
+  }
+
+  if (rpcMsg->code != TSDB_CODE_TDB_INVALID_TABLE_ID &&
+      rpcMsg->code != TSDB_CODE_VND_INVALID_VGROUP_ID &&
+      rpcMsg->code != TSDB_CODE_QRY_INVALID_SCHEMA_VERSION &&
+      rpcMsg->code != TSDB_CODE_RPC_NETWORK_UNAVAIL &&
+      rpcMsg->code != TSDB_CODE_APP_NOT_READY ) {
+    return false;
+  }
+
+  if (rpcMsg->code == TSDB_CODE_QRY_INVALID_SCHEMA_VERSION) {
+    return true;
+  }
+
+  // 1. super table subquery
+  // 2. nest queries are all not updated the tablemeta and retry parse the sql after cleanup local tablemeta/vgroup id buffer
+  if ((TSDB_QUERY_HAS_TYPE(pQueryInfo->type, (TSDB_QUERY_TYPE_STABLE_SUBQUERY | TSDB_QUERY_TYPE_SUBQUERY | TSDB_QUERY_TYPE_TAG_FILTER_QUERY)) &&
+       !TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_PROJECTION_QUERY)) ||
+      (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_NEST_SUBQUERY)) ||
+      (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_STABLE_SUBQUERY) &&  pQueryInfo->distinct)
+      || (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_JOIN_QUERY))) {
+    return false;
+  }
+
+  // single table query error need to renew table meta.
+  return true;
+}
+
 void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcEpSet *pEpSet) {
   TSDB_CACHE_PTR_TYPE handle = (TSDB_CACHE_PTR_TYPE) rpcMsg->ahandle;
   SSqlObj* pSql = (SSqlObj*)taosAcquireRef(tscObjRef, handle);
@@ -415,43 +450,29 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcEpSet *pEpSet) {
     pSql->cmd.insertParam.schemaAttached = 1;
   }
 
-  // single table query error need to be handled here.
-  if ((cmd == TSDB_SQL_SELECT || cmd == TSDB_SQL_UPDATE_TAGS_VAL) &&
-      (((rpcMsg->code == TSDB_CODE_TDB_INVALID_TABLE_ID || rpcMsg->code == TSDB_CODE_VND_INVALID_VGROUP_ID)) ||
-       (rpcMsg->code == TSDB_CODE_QRY_INVALID_SCHEMA_VERSION) ||
-       rpcMsg->code == TSDB_CODE_RPC_NETWORK_UNAVAIL || rpcMsg->code == TSDB_CODE_APP_NOT_READY )) {
-
-    // 1. super table subquery
-    // 2. nest queries are all not updated the tablemeta and retry parse the sql after cleanup local tablemeta/vgroup id buffer
-    if ((TSDB_QUERY_HAS_TYPE(pQueryInfo->type, (TSDB_QUERY_TYPE_STABLE_SUBQUERY | TSDB_QUERY_TYPE_SUBQUERY |
-                                               TSDB_QUERY_TYPE_TAG_FILTER_QUERY)) &&
-                                               !TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_PROJECTION_QUERY)) ||
-                                               (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_NEST_SUBQUERY)) || (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_STABLE_SUBQUERY) &&  pQueryInfo->distinct)
-                                              || (TSDB_QUERY_HAS_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_JOIN_QUERY))) {
-      // do nothing in case of super table subquery
-    }  else {
-      pSql->retry += 1;
-      tscWarn("0x%" PRIx64 " it shall renew table meta, code:%s, retry:%d", pSql->self, tstrerror(rpcMsg->code), pSql->retry);
-
-      pSql->res.code = rpcMsg->code;  // keep the previous error code
-      if (pSql->retry > pSql->maxRetry) {
-        tscError("0x%" PRIx64 " max retry %d reached, give up", pSql->self, pSql->maxRetry);
-      } else {
-        // wait for a little bit moment and then retry
-        // todo do not sleep in rpc callback thread, add this process into queue to process
-        if (rpcMsg->code == TSDB_CODE_APP_NOT_READY || rpcMsg->code == TSDB_CODE_VND_INVALID_VGROUP_ID) {
-          int32_t duration = getWaitingTimeInterval(pSql->retry);
-          taosMsleep(duration);
-        }
-
-        pSql->retryReason = rpcMsg->code;
-        rpcMsg->code = tscRenewTableMeta(pSql);
-        // if there is an error occurring, proceed to the following error handling procedure.
-        if (rpcMsg->code == TSDB_CODE_TSC_ACTION_IN_PROGRESS) {
-          taosReleaseRef(tscObjRef, handle);
-          rpcFreeCont(rpcMsg->pCont);
-          return;
-        }
+  bool renewTableMeta = shouldRewTableMeta(pSql, rpcMsg);
+ if (renewTableMeta) {
+    pSql->retry += 1;
+    tscWarn("0x%" PRIx64 " it shall renew table meta, code:%s, retry:%d", pSql->self, tstrerror(rpcMsg->code), pSql->retry);
+
+    pSql->res.code = rpcMsg->code;  // keep the previous error code
+    if (pSql->retry > pSql->maxRetry) {
+      tscError("0x%" PRIx64 " max retry %d reached, give up", pSql->self, pSql->maxRetry);
+    } else {
+      // wait for a little bit moment and then retry
+      // todo do not sleep in rpc callback thread, add this process into queue to process
+      if (rpcMsg->code == TSDB_CODE_APP_NOT_READY || rpcMsg->code == TSDB_CODE_VND_INVALID_VGROUP_ID) {
+        int32_t duration = getWaitingTimeInterval(pSql->retry);
+        taosMsleep(duration);
+      }
+
+      pSql->retryReason = rpcMsg->code;
+      rpcMsg->code = tscRenewTableMeta(pSql);
+      // if there is an error occurring, proceed to the following error handling procedure.
+      if (rpcMsg->code == TSDB_CODE_TSC_ACTION_IN_PROGRESS) {
+        taosReleaseRef(tscObjRef, handle);
+        rpcFreeCont(rpcMsg->pCont);
+        return;
       }
     }
   }