Merge branch '3.0' of github.com:taosdata/TDengine into szhou/fixbugs

docs/examples/python/tmq_example.py

 import taos
-from taos.tmq import *
-
-conn = taos.connect()
-
-# create database
-conn.execute("drop database if exists py_tmq")
-conn.execute("create database if not exists py_tmq vgroups 2")
-
-# create table and stables
-conn.select_db("py_tmq")
-conn.execute("create stable if not exists stb1 (ts timestamp, c1 int, c2 float, c3 binary(10)) tags(t1 int)")
-conn.execute("create table if not exists tb1 using stb1 tags(1)")
-conn.execute("create table if not exists tb2 using stb1 tags(2)")
-conn.execute("create table if not exists tb3 using stb1 tags(3)")
-
-# create topic
-conn.execute("drop topic if exists topic_ctb_column")
-conn.execute("create topic if not exists topic_ctb_column as select ts, c1, c2, c3 from stb1")
-
-# set consumer configure options
-conf = TaosTmqConf()
-conf.set("group.id", "tg2")
-conf.set("td.connect.user", "root")
-conf.set("td.connect.pass", "taosdata")
-conf.set("enable.auto.commit", "true")
-conf.set("msg.with.table.name", "true")
-
-def tmq_commit_cb_print(tmq, resp, offset, param=None):
-    print(f"commit: {resp}, tmq: {tmq}, offset: {offset}, param: {param}")
-    
-conf.set_auto_commit_cb(tmq_commit_cb_print, None)
-
-# build consumer
-tmq = conf.new_consumer()
-
-# build topic list
-topic_list = TaosTmqList()
-topic_list.append("topic_ctb_column")
-
-# subscribe consumer
-tmq.subscribe(topic_list)
-
-# check subscriptions
-sub_list = tmq.subscription()
-print("subscribed topics: ",sub_list)
-
-# start subscribe
-while 1:
-    res = tmq.poll(1000)
-    if res:
-        topic = res.get_topic_name()
-        vg = res.get_vgroup_id()
-        db = res.get_db_name()
-        print(f"topic: {topic}\nvgroup id: {vg}\ndb: {db}")
-        for row in res:
-            print(row)
-            tb = res.get_table_name()
-            print(f"from table: {tb}")
+from taos.tmq import TaosConsumer
+consumer = TaosConsumer('topic_ctb_column', group_id='vg2')
+for msg in consumer:
+    for row in msg:
+        print(row)

docs/zh/05-get-started/01-docker.md

@@ -2,11 +2,8 @@
 sidebar_label: Docker
 title: 通过 Docker 快速体验 TDengine
 ---
-:::info
-如果您希望为 TDengine 贡献代码或对内部技术实现感兴趣，请参考[TDengine GitHub 主页](https://github.com/taosdata/TDengine) 下载源码构建和安装.
-:::
 
-本节首先介绍如何通过 Docker 快速体验 TDengine，然后介绍如何在 Docker 环境下体验 TDengine 的写入和查询功能。
+本节首先介绍如何通过 Docker 快速体验 TDengine，然后介绍如何在 Docker 环境下体验 TDengine 的写入和查询功能。如果你不熟悉 Docker，请使用[安装包的方式快速体验](../../get-started/package/)。如果您希望为 TDengine 贡献代码或对内部技术实现感兴趣，请参考 [TDengine GitHub 主页](https://github.com/taosdata/TDengine) 下载源码构建和安装.
 
 ## 启动 TDengine
 

docs/zh/05-get-started/03-package.md

@@ -5,49 +5,21 @@ title: 使用安装包立即开始
 
 import Tabs from "@theme/Tabs";
 import TabItem from "@theme/TabItem";
+import PkgListV3 from "/components/PkgListV3";
 
-:::info
-如果您希望对 TDengine 贡献代码或对内部实现感兴趣，请参考我们的 [TDengine GitHub 主页](https://github.com/taosdata/TDengine) 下载源码构建和安装.
-
-:::
-
-在 Linux 系统上，TDengine 开源版本提供 deb 和 rpm 格式安装包，用户可以根据自己的运行环境选择合适的安装包。其中 deb 支持 Debian/Ubuntu 及衍生系统，rpm 支持 CentOS/RHEL/SUSE 及衍生系统。同时我们也为企业用户提供 tar.gz 格式安装包，也支持通过 `apt-get` 工具从线上进行安装。TDengine 也提供 Windows x64 平台的安装包。
+在 Linux 系统上，TDengine 开源版本提供 deb 和 rpm 格式安装包，用户可以根据自己的运行环境选择合适的安装包。其中 deb 支持 Debian/Ubuntu 及衍生系统，rpm 支持 CentOS/RHEL/SUSE 及衍生系统。同时我们也为企业用户提供 tar.gz 格式安装包，也支持通过 `apt-get` 工具从线上进行安装。TDengine 也提供 Windows x64 平台的安装包。您也可以[用Docker立即体验](../../get-started/docker/)。如果您希望对 TDengine 贡献代码或对内部实现感兴趣，请参考我们的 [TDengine GitHub 主页](https://github.com/taosdata/TDengine) 下载源码构建和安装.
 
 ## 安装
 
-<Tabs>
-<TabItem value="apt-get" label="apt-get">
-可以使用 apt-get 工具从官方仓库安装。
-
-**安装包仓库**
-
-```bash
-wget -qO - http://repos.taosdata.com/tdengine.key | sudo apt-key add -
-echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-stable stable main" | sudo tee /etc/apt/sources.list.d/tdengine-stable.list
-```
-
-如果安装 Beta 版需要安装包仓库
-
-```bash
-wget -qO - http://repos.taosdata.com/tdengine.key | sudo apt-key add -
-echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-beta beta main" | sudo tee /etc/apt/sources.list.d/tdengine-beta.list
-```
-
-**使用 apt-get 命令安装**
-
-```bash
-sudo apt-get update
-apt-cache policy tdengine
-sudo apt-get install tdengine
-```
+:::info
+下载其他组件、最新 Beta 版及之前版本的安装包，请点击[发布历史页面](../../releases) 
+:::
 
-:::tip
-apt-get 方式只适用于 Debian 或 Ubuntu 系统
-::::
-</TabItem>
+<Tabs>
 <TabItem label="Deb 安装" value="debinst">
 
-1. 从 [发布历史页面](../../releases) 下载获得 deb 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.deb；
+1. 从列表中下载获得 deb 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.deb；
+<PkgListV3 type={6}/>
 2. 进入到 TDengine-server-3.0.0.0-Linux-x64.deb 安装包所在目录，执行如下的安装命令：
 
 ```bash
@@ -58,7 +30,8 @@ sudo dpkg -i TDengine-server-3.0.0.0-Linux-x64.deb
 
 <TabItem label="RPM 安装" value="rpminst">
 
-1. 从 [发布历史页面](../../releases) 下载获得 rpm 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.rpm；
+1. 从列表中下载获得 rpm 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.rpm；
+<PkgListV3 type={5}/>
 2. 进入到 TDengine-server-3.0.0.0-Linux-x64.rpm 安装包所在目录，执行如下的安装命令：
 
 ```bash
@@ -69,7 +42,8 @@ sudo rpm -ivh TDengine-server-3.0.0.0-Linux-x64.rpm
 
 <TabItem label="tar.gz 安装" value="tarinst">
 
-1. 从 [发布历史页面](../../releases) 下载获得 tar.gz 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.tar.gz；
+1. 从列表中下载获得 tar.gz 安装包，例如 TDengine-server-3.0.0.0-Linux-x64.tar.gz；
+<PkgListV3 type={0}/>
 2. 进入到 TDengine-server-3.0.0.0-Linux-x64.tar.gz 安装包所在目录，先解压文件后，进入子目录，执行其中的 install.sh 安装脚本：
 
 ```bash
@@ -84,16 +58,45 @@ sudo ./install.sh
 
 :::info
 install.sh 安装脚本在执行过程中，会通过命令行交互界面询问一些配置信息。如果希望采取无交互安装方式，那么可以用 -e no 参数来执行 install.sh 脚本。运行 `./install.sh -h` 指令可以查看所有参数的详细说明信息。
-
 :::
 
 </TabItem>
 
-<TabItem label="Windows 安装" value="windows">
+<TabItem label="Windows 安装" value="windows">           
 
-1. 从 [发布历史页面](../../releases) 下载获得 exe 安装程序，例如 TDengine-server-3.0.0.0-Windows-x64.exe；
+1. 从列表中下载获得 exe 安装程序，例如 TDengine-server-3.0.0.0-Windows-x64.exe；
+<PkgListV3 type={3}/>
 2. 运行 TDengine-server-3.0.0.0-Windows-x64.exe 来安装 TDengine。
 
+</TabItem>
+<TabItem value="apt-get" label="apt-get">
+可以使用 apt-get 工具从官方仓库安装。
+
+**安装包仓库**
+
+```bash
+wget -qO - http://repos.taosdata.com/tdengine.key | sudo apt-key add -
+echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-stable stable main" | sudo tee /etc/apt/sources.list.d/tdengine-stable.list
+```
+
+如果安装 Beta 版需要安装包仓库
+
+```bash
+wget -qO - http://repos.taosdata.com/tdengine.key | sudo apt-key add -
+echo "deb [arch=amd64] http://repos.taosdata.com/tdengine-beta beta main" | sudo tee /etc/apt/sources.list.d/tdengine-beta.list
+```
+
+**使用 apt-get 命令安装**
+
+```bash
+sudo apt-get update
+apt-cache policy tdengine
+sudo apt-get install tdengine
+```
+
+:::tip
+apt-get 方式只适用于 Debian 或 Ubuntu 系统
+::::
 </TabItem>
 </Tabs>
 

docs/zh/07-develop/07-tmq.mdx

@@ -88,6 +88,72 @@ void close() throws SQLException;
 ```
 
 </TabItem>
+
+<TabItem value="Python" label="Python">
+```python
+class TaosConsumer():
+    def __init__(self, *topics, **configs)
+
+    def __iter__(self)
+
+    def __next__(self)
+
+    def sync_next(self)
+    
+    def subscription(self)
+
+    def unsubscribe(self)
+
+    def close(self)
+    
+    def __del__(self)
+```
+</TabItem>
+<TabItem label="Go" value="Go">
+
+```go
+func NewConsumer(conf *Config) (*Consumer, error)
+
+func (c *Consumer) Close() error
+
+func (c *Consumer) Commit(ctx context.Context, message unsafe.Pointer) error
+
+func (c *Consumer) FreeMessage(message unsafe.Pointer)
+
+func (c *Consumer) Poll(timeout time.Duration) (*Result, error)
+
+func (c *Consumer) Subscribe(topics []string) error
+
+func (c *Consumer) Unsubscribe() error
+```
+</TabItem>
+
+<TabItem value="C#" label="C#">
+
+```C#
+ConsumerBuilder(IEnumerable<KeyValuePair<string, string>> config)
+
+virtual IConsumer Build()
+
+Consumer(ConsumerBuilder builder)
+
+void Subscribe(IEnumerable<string> topics)
+
+void Subscribe(string topic) 
+
+ConsumeResult Consume(int millisecondsTimeout)
+
+List<string> Subscription()
+
+void Unsubscribe()
+ 
+void Commit(ConsumeResult consumerResult)
+
+void Close()
+
+```
+</TabItem>
+
 </Tabs>
 
 ## 写入数据
@@ -230,6 +296,105 @@ public class MetersDeserializer extends ReferenceDeserializer<Meters> {
 ```
 
 </TabItem>
+
+<TabItem value="Python" label="Python">
+
+Python 使用以下配置项创建一个 Consumer 实例。
+
+|            参数名称            |  类型   | 参数说明                                                 | 备注                                        |
+| :----------------------------: | :-----: | -------------------------------------------------------- | ------------------------------------------- |
+|        `td_connect_ip`         | string  | 用于创建连接，同 `taos_connect`                          |                                             |
+|       `td_connect_user`        | string  | 用于创建连接，同 `taos_connect`                          |                                             |
+|       `td_connect_pass`        | string  | 用于创建连接，同 `taos_connect`                          |                                             |
+|       `td_connect_port`        | string  | 用于创建连接，同 `taos_connect`                          |                                             |
+|           `group_id`           | string  | 消费组 ID，同一消费组共享消费进度                        | **必填项**。最大长度：192。                 |
+|          `client_id`           | string  | 客户端 ID                                                | 最大长度：192。                             |
+|      `auto_offset_reset`       | string  | 消费组订阅的初始位置                                     | 可选：`earliest`, `latest`, `none`(default) |
+|      `enable_auto_commit`      | string  | 启用自动提交                                             | 合法值：`true`, `false`。                   |
+|   `auto_commit_interval_ms`    | string  | 以毫秒为单位的自动提交时间间隔                           |                                             |
+| `enable_heartbeat_background`  | string  | 启用后台心跳，启用后即使长时间不 poll 消息也不会造成离线 | 合法值：`true`, `false`                     |
+| `experimental_snapshot_enable` | string  | 从 WAL 开始消费，还是从 TSBS 开始消费                    | 合法值：`true`, `false`                     |
+|     `msg_with_table_name`      | string  | 是否允许从消息中解析表名                                 | 合法值：`true`, `false`                     |
+|      `timeout`                 | int     | 消费者拉去的超时时间                                    |                                            |
+
+</TabItem>
+
+<TabItem label="Go" value="Go">
+
+```go
+config := tmq.NewConfig()
+defer config.Destroy()
+err = config.SetGroupID("test")
+if err != nil {
+  panic(err)
+}
+err = config.SetAutoOffsetReset("earliest")
+if err != nil {
+  panic(err)
+}
+err = config.SetConnectIP("127.0.0.1")
+if err != nil {
+  panic(err)
+}
+err = config.SetConnectUser("root")
+if err != nil {
+  panic(err)
+}
+err = config.SetConnectPass("taosdata")
+if err != nil {
+  panic(err)
+}
+err = config.SetConnectPort("6030")
+if err != nil {
+  panic(err)
+}
+err = config.SetMsgWithTableName(true)
+if err != nil {
+  panic(err)
+}
+err = config.EnableHeartBeat()
+if err != nil {
+  panic(err)
+}
+err = config.EnableAutoCommit(func(result *wrapper.TMQCommitCallbackResult) {
+  if result.ErrCode != 0 {
+    errStr := wrapper.TMQErr2Str(result.ErrCode)
+    err := errors.NewError(int(result.ErrCode), errStr)
+    panic(err)
+  }
+})
+if err != nil {
+  panic(err)
+}
+```
+
+</TabItem>
+
+<TabItem value="C#" label="C#">
+
+```C#
+using TDengineTMQ;
+
+// 根据需要，设置消费组 (GourpId)、自动提交 (EnableAutoCommit)、
+// 自动提交时间间隔 (AutoCommitIntervalMs)、用户名 (TDConnectUser)、密码 (TDConnectPasswd) 等参数
+var cfg = new ConsumerConfig
+ {
+    EnableAutoCommit = "true"
+    AutoCommitIntervalMs = "1000"
+    GourpId = "TDengine-TMQ-C#",
+    TDConnectUser = "root",
+    TDConnectPasswd = "taosdata",
+    AutoOffsetReset = "earliest"
+    MsgWithTableName = "true",
+    TDConnectIp = "127.0.0.1",
+    TDConnectPort = "6030"
+ };
+
+var consumer = new ConsumerBuilder(cfg).Build();
+
+```
+</TabItem>
+
 </Tabs>
 
 上述配置中包括 consumer group ID，如果多个 consumer 指定的 consumer group ID 一样，则自动形成一个 consumer group，共享消费进度。
@@ -261,6 +426,42 @@ consumer.subscribe(topics);
 ```
 
 </TabItem>
+<TabItem value="Go" label="Go">
+
+```go
+consumer, err := tmq.NewConsumer(config)
+if err != nil {
+ panic(err)
+}
+err = consumer.Subscribe([]string{"example_tmq_topic"})
+if err != nil {
+ panic(err)
+}
+```
+
+</TabItem>
+
+
+<TabItem value="C#" label="C#">
+
+```C#
+// 创建订阅 topics 列表
+List<String> topics = new List<string>();
+topics.add("tmq_topic");
+// 启动订阅
+consumer.Subscribe(topics);
+```
+
+</TabItem>
+
+
+<TabItem value="Python" label="Python">
+```python
+consumer = TaosConsumer('topic_ctb_column', group_id='vg2')
+```
+</TabItem>
+
+
 
 </Tabs>
 
@@ -293,9 +494,50 @@ while(running){
 }
 ```
 
+</TabItem>
+
+<TabItem value="Python" label="Python">
+```python
+for msg in consumer:
+    for row in msg:
+        print(row)
+```
+</TabItem>
+
+
+<TabItem value="Go" label="Go">
+
+```go
+for {
+ result, err := consumer.Poll(time.Second)
+ if err != nil {
+  panic(err)
+ }
+ fmt.Println(result)
+ consumer.Commit(context.Background(), result.Message)
+ consumer.FreeMessage(result.Message)
+}
+```
+
+</TabItem>
+
+<TabItem value="C#" label="C#">
+
+```C#
+// 消费数据
+while (true)
+{
+    var consumerRes = consumer.Consume(100);
+    // process ConsumeResult
+    ProcessMsg(consumerRes);
+    consumer.Commit(consumerRes);
+}
+```
+
 </TabItem>
 </Tabs>
 
+
 ## 结束消费
 
 消费结束后，应当取消订阅。
@@ -323,6 +565,35 @@ consumer.close();
 ```
 
 </TabItem>
+
+<TabItem value="Python" label="Python">
+
+```python
+/* 取消订阅 */
+consumer.unsubscribe();
+
+/* 关闭消费 */
+consumer.close();
+
+</TabItem>
+
+<TabItem value="Go" label="Go">
+
+```go
+consumer.Close()
+```
+
+</TabItem>
+<TabItem value="C#" label="C#">
+
+```C#
+// 取消订阅
+consumer.Unsubscribe();
+
+// 关闭消费
+consumer.Close();
+</TabItem>
+
 </Tabs>
 
 ## 删除 *topic*
@@ -671,64 +942,14 @@ int main(int argc, char* argv[]) {
 
 ```python
 import taos
-from taos.tmq import *
+from taos.tmq import TaosConsumer
 
-conn = taos.connect()
-
-# create database
-conn.execute("drop database if exists py_tmq")
-conn.execute("create database if not exists py_tmq vgroups 2")
-
-# create table and stables
-conn.select_db("py_tmq")
-conn.execute("create stable if not exists stb1 (ts timestamp, c1 int, c2 float, c3 binary(10)) tags(t1 int)")
-conn.execute("create table if not exists tb1 using stb1 tags(1)")
-conn.execute("create table if not exists tb2 using stb1 tags(2)")
-conn.execute("create table if not exists tb3 using stb1 tags(3)")
-
-# create topic
-conn.execute("drop topic if exists topic_ctb_column")
-conn.execute("create topic if not exists topic_ctb_column as select ts, c1, c2, c3 from stb1")
-
-# set consumer configure options
-conf = TaosTmqConf()
-conf.set("group.id", "tg2")
-conf.set("td.connect.user", "root")
-conf.set("td.connect.pass", "taosdata")
-conf.set("enable.auto.commit", "true")
-conf.set("msg.with.table.name", "true")
-
-def tmq_commit_cb_print(tmq, resp, offset, param=None):
-    print(f"commit: {resp}, tmq: {tmq}, offset: {offset}, param: {param}")
-    
-conf.set_auto_commit_cb(tmq_commit_cb_print, None)
-
-# build consumer
-tmq = conf.new_consumer()
-
-# build topic list
-topic_list = TaosTmqList()
-topic_list.append("topic_ctb_column")
-
-# subscribe consumer
-tmq.subscribe(topic_list)
-
-# check subscriptions
-sub_list = tmq.subscription()
-print("subscribed topics: ",sub_list)
-
-# start subscribe
-while 1:
-    res = tmq.poll(1000)
-    if res:
-        topic = res.get_topic_name()
-        vg = res.get_vgroup_id()
-        db = res.get_db_name()
-        print(f"topic: {topic}\nvgroup id: {vg}\ndb: {db}")
-        for row in res:
-            print(row)
-            tb = res.get_table_name()
-            print(f"from table: {tb}")
+import taos
+from taos.tmq import *
+consumer = TaosConsumer('topic_ctb_column', group_id='vg2')
+for msg in consumer:
+    for row in msg:
+        print(row)
 
 ```
 
@@ -745,3 +966,5 @@ while 1:
 </TabItem>
 
 </Tabs>
+
+ 

docs/zh/12-taos-sql/29-changes.md

@@ -6,9 +6,9 @@ description: "TDengine 3.0 版本的语法变更说明"
 
 ## SQL 基本元素变更
 
-| # | **元素**  | **差异性** | **说明** |
-| - | :------- | :--------: | :------- |
-| 1 | VARCHAR | <div style="width: 40pt">新增</div> | BINARY类型的别名。
+| # | **元素**  | **<div style={{width: 60}}>差异性</div>** | **说明** |
+| - | :------- | :-------- | :------- |
+| 1 | VARCHAR | 新增 | BINARY类型的别名。
 | 2 | TIMESTAMP字面量 | 新增 | 新增支持 TIMESTAMP 'timestamp format' 语法。
 | 3 | _ROWTS伪列 | 新增 | 表示时间戳主键。是_C0伪列的别名。
 | 4 | INFORMATION_SCHEMA | 新增 |	包含各种SCHEMA定义的系统数据库。
@@ -22,9 +22,9 @@ description: "TDengine 3.0 版本的语法变更说明"
 
 在 TDengine 中，普通表的数据模型中可使用以下数据类型。
 
-| # | **语句**  | **差异性** | **说明** |
-| - | :------- | :--------: | :------- |
-| 1 | ALTER ACCOUNT | <div style="width: 40pt">废除</div> | 2.x中为企业版功能，3.0不再支持。语法暂时保留了，执行报“This statement is no longer supported”错误。
+| # | **语句**  | **<div style={{width: 60}}>差异性</div>** | **说明** |
+| - | :------- | :-------- | :------- |
+| 1 | ALTER ACCOUNT | 废除 | 2.x中为企业版功能，3.0不再支持。语法暂时保留了，执行报“This statement is no longer supported”错误。
 | 2 | ALTER ALL DNODES | 新增 | 修改所有DNODE的参数。
 | 3 | ALTER DATABASE | 调整	| 废除<ul><li>QUORUM：写入需要的副本确认数。3.0版本使用STRICT来指定强一致还是弱一致。3.0.0版本STRICT暂不支持修改。</li><li>BLOCKS：VNODE使用的内存块数。3.0版本使用BUFFER来表示VNODE写入内存池的大小。</li><li>UPDATE：更新操作的支持模式。3.0版本所有数据库都支持部分列更新。</li><li>CACHELAST：缓存最新一行数据的模式。3.0版本用CACHEMODEL代替。</li><li>COMP：3.0版本暂不支持修改。<br/>新增</li><li>CACHEMODEL：表示是否在内存中缓存子表的最近数据。</li><li>CACHESIZE：表示缓存子表最近数据的内存大小。</li><li>WAL_FSYNC_PERIOD：代替原FSYNC参数。</li><li>WAL_LEVEL：代替原WAL参数。<br/>调整</li><li>REPLICA：3.0.0版本暂不支持修改。</li><li>KEEP：3.0版本新增支持带单位的设置方式。</li></ul>
 | 4 | ALTER STABLE | 调整 | 废除<ul><li>CHANGE TAG：修改标签列的名称。3.0版本使用RENAME TAG代替。<br/>新增</li><li>RENAME TAG：代替原CHANGE TAG子句。</li><li>COMMENT：修改超级表的注释。</li></ul>
@@ -80,9 +80,9 @@ description: "TDengine 3.0 版本的语法变更说明"
 
 ## SQL 函数变更
 
-| # | **函数**  | **差异性** | **说明** |
-| - | :------- | :--------: | :------- |
-| 1 | TWA	| <div style="width: 40pt">增强</div> | 可以直接用于超级表了。没有PARTITION BY时，超级表的数据会被合并成一条时间线。
+| # | **函数**  | ** <div style={{width: 60}}>差异性</div> ** | **说明** |
+| - | :------- | :-------- | :------- |
+| 1 | TWA	| 增强 | 可以直接用于超级表了。没有PARTITION BY时，超级表的数据会被合并成一条时间线。
 | 2 | IRATE | 增强 | 可以直接用于超级表了。没有PARTITION BY时，超级表的数据会被合并成一条时间线。
 | 3 | LEASTSQUARES | 增强 | 可以用于超级表了。
 | 4 | ELAPSED | 增强 | 可以直接用于超级表了。没有PARTITION BY时，超级表的数据会被合并成一条时间线。

docs/zh/14-reference/03-connector/_linux_install.mdx

-import PkgList from "/components/PkgList";
+import PkgListV3 from "/components/PkgListV3";
 
 1. 下载客户端安装包
   
-  <PkgList type={1} sys="Linux" />
+  <PkgListV3 type={1} sys="Linux" />
 
-   [所有下载](https://www.taosdata.com/cn/all-downloads/)
+   [所有下载](../../releases)
 
 2. 解压缩软件包
 

docs/zh/14-reference/03-connector/_windows_install.mdx

-import PkgList from "/components/PkgList";
+import PkgListV3 from "/components/PkgListV3";
 
 1. 下载客户端安装包
 
-   <PkgList type={1} sys="Windows" />
-
-   [所有下载](https://www.taosdata.com/cn/all-downloads/)
+   <PkgListV3 type={4} sys="Windows" />
 
+   [所有下载](../../releases)
 2. 执行安装程序，按提示选择默认值，完成安装
 3. 安装路径
 

docs/zh/14-reference/03-connector/java.mdx

@@ -93,12 +93,12 @@ Maven 项目中，在 pom.xml 中添加以下依赖：
 可以通过下载 TDengine 的源码，自己编译最新版本的 Java connector
 
 ```shell
-git clone https://github.com/taosdata/taos-connector-jdbc.git --branch 2.0
+git clone https://github.com/taosdata/taos-connector-jdbc.git
 cd taos-connector-jdbc
 mvn clean install -Dmaven.test.skip=true
 ```
 
-编译后，在 target 目录下会产生 taos-jdbcdriver-2.0.XX-dist.jar 的 jar 包，并自动将编译的 jar 文件放在本地的 Maven 仓库中。
+编译后，在 target 目录下会产生 taos-jdbcdriver-3.0.*-dist.jar 的 jar 包，并自动将编译的 jar 文件放在本地的 Maven 仓库中。
 
 </TabItem>
 </Tabs>
@@ -198,7 +198,7 @@ url 中的配置参数如下：
 
 - user：登录 TDengine 用户名，默认值 'root'。
 - password：用户登录密码，默认值 'taosdata'。
-- batchfetch: true：在执行查询时批量拉取结果集；false：逐行拉取结果集。默认值为：false。逐行拉取结果集使用 HTTP 方式进行数据传输。从 taos-jdbcdriver-2.0.38 开始，JDBC REST 连接增加批量拉取数据功能。taos-jdbcdriver 与 TDengine 之间通过 WebSocket 连接进行数据传输。相较于 HTTP，WebSocket 可以使 JDBC REST 连接支持大数据量查询，并提升查询性能。
+- batchfetch: true：在执行查询时批量拉取结果集；false：逐行拉取结果集。默认值为：false。逐行拉取结果集使用 HTTP 方式进行数据传输。JDBC REST 连接支持批量拉取数据功能。taos-jdbcdriver 与 TDengine 之间通过 WebSocket 连接进行数据传输。相较于 HTTP，WebSocket 可以使 JDBC REST 连接支持大数据量查询，并提升查询性能。
 - charset: 当开启批量拉取数据时，指定解析字符串数据的字符集。
 - batchErrorIgnore：true：在执行 Statement 的 executeBatch 时，如果中间有一条 SQL 执行失败，继续执行下面的 SQL 了。false：不再执行失败 SQL 后的任何语句。默认值为：false。
 - httpConnectTimeout: 连接超时时间，单位 ms， 默认值为 5000。
@@ -216,7 +216,7 @@ url 中的配置参数如下：
 INSERT INTO test.t1 USING test.weather (ts, temperature) TAGS('California.SanFrancisco') VALUES(now, 24.6);
 ```
 
-- 从 taos-jdbcdriver-2.0.36 开始，如果在 url 中指定了 dbname，那么，JDBC REST 连接会默认使用/rest/sql/dbname 作为 restful 请求的 url，在 SQL 中不需要指定 dbname。例如：url 为 jdbc:TAOS-RS://127.0.0.1:6041/test，那么，可以执行 sql：insert into t1 using weather(ts, temperature) tags('California.SanFrancisco') values(now, 24.6);
+- 如果在 url 中指定了 dbname，那么，JDBC REST 连接会默认使用/rest/sql/dbname 作为 restful 请求的 url，在 SQL 中不需要指定 dbname。例如：url 为 jdbc:TAOS-RS://127.0.0.1:6041/test，那么，可以执行 sql：insert into t1 using weather(ts, temperature) tags('California.SanFrancisco') values(now, 24.6);
 
 :::
 
@@ -230,7 +230,7 @@ INSERT INTO test.t1 USING test.weather (ts, temperature) TAGS('California.SanFra
 **注意**：
 
 - 应用中设置的 client parameter 为进程级别的，即如果要更新 client 的参数，需要重启应用。这是因为 client parameter 是全局参数，仅在应用程序的第一次设置生效。
-- 以下示例代码基于 taos-jdbcdriver-2.0.36。
+- 以下示例代码基于 taos-jdbcdriver-3.0.0。
 
 ```java
 public Connection getConn() throws Exception{
@@ -367,7 +367,7 @@ TDengine 的 JDBC 原生连接实现大幅改进了参数绑定方式对数据
 **注意**：
 
 - JDBC REST 连接目前不支持参数绑定
-- 以下示例代码基于 taos-jdbcdriver-2.0.36
+- 以下示例代码基于 taos-jdbcdriver-3.0.0
 - binary 类型数据需要调用 setString 方法，nchar 类型数据需要调用 setNString 方法
 - setString 和 setNString 都要求用户在 size 参数里声明表定义中对应列的列宽
 
@@ -635,7 +635,7 @@ TDengine 支持无模式写入功能。无模式写入兼容 InfluxDB 的 行协
 **注意**：
 
 - JDBC REST 连接目前不支持无模式写入
-- 以下示例代码基于 taos-jdbcdriver-2.0.36
+- 以下示例代码基于 taos-jdbcdriver-3.0.0
 
 ```java
 public class SchemalessInsertTest {
@@ -666,7 +666,7 @@ public class SchemalessInsertTest {
 }
 ```
 
-### 订阅
+### 数据订阅
 
 TDengine Java 连接器支持订阅功能，应用 API 如下：
 
@@ -717,9 +717,14 @@ while(true) {
 #### 关闭订阅
 
 ```java
+// 取消订阅
+consumer.unsubscribe();
+// 关闭消费
 consumer.close()
 ```
 
+详情请参考：[数据订阅](../../../develop/tmq)
+
 ### 使用示例如下：
 
 ```java
@@ -734,7 +739,7 @@ public abstract class ConsumerLoop {
         config.setProperty("msg.with.table.name", "true");
         config.setProperty("enable.auto.commit", "true");
         config.setProperty("group.id", "group1");
-        config.setProperty("value.deserializer", "com.taosdata.jdbc.tmq.ConsumerTest.ResultDeserializer");
+        config.setProperty("value.deserializer", "com.taosdata.jdbc.tmq.ConsumerTest.ConsumerLoop$ResultDeserializer");
 
         this.consumer = new TaosConsumer<>(config);
         this.topics = Collections.singletonList("topic_speed");
@@ -754,8 +759,9 @@ public abstract class ConsumerLoop {
                     process(record);
                 }
             }
+            consumer.unsubscribe();
         } finally {
-             consumer.close();
+            consumer.close();
             shutdownLatch.countDown();
         }
     }
@@ -875,6 +881,7 @@ public static void main(String[] args) throws Exception {
 
 | taos-jdbcdriver 版本 |            主要变化            |
 | :------------------: | :----------------------------: |
+|       3.0.0        |   支持 TDengine 3.0    |
 |   2.0.39 - 2.0.40    |  增加 REST 连接/请求 超时设置  |
 |        2.0.38        | JDBC REST 连接增加批量拉取功能 |
 |        2.0.37        |      增加对 json tag 支持      |

include/libs/stream/tstreamUpdate.h

@@ -25,33 +25,34 @@ extern "C" {
 #endif
 
 typedef struct SUpdateInfo {
-  SArray *pTsBuckets;
-  uint64_t numBuckets;
-  SArray *pTsSBFs;
-  uint64_t numSBFs;
-  int64_t interval;
-  int64_t watermark;
-  TSKEY minTS;
-  SScalableBf* pCloseWinSBF;
-  SHashObj* pMap;
-  STimeWindow scanWindow;
-  uint64_t scanGroupId;
-  uint64_t maxVersion;
+  SArray      *pTsBuckets;
+  uint64_t     numBuckets;
+  SArray      *pTsSBFs;
+  uint64_t     numSBFs;
+  int64_t      interval;
+  int64_t      watermark;
+  TSKEY        minTS;
+  SScalableBf *pCloseWinSBF;
+  SHashObj    *pMap;
+  STimeWindow  scanWindow;
+  uint64_t     scanGroupId;
+  uint64_t     maxVersion;
 } SUpdateInfo;
 
-SUpdateInfo *updateInfoInitP(SInterval* pInterval, int64_t watermark);
+SUpdateInfo *updateInfoInitP(SInterval *pInterval, int64_t watermark);
 SUpdateInfo *updateInfoInit(int64_t interval, int32_t precision, int64_t watermark);
-bool updateInfoIsUpdated(SUpdateInfo *pInfo, uint64_t tableId, TSKEY ts);
-void updateInfoSetScanRange(SUpdateInfo *pInfo, STimeWindow* pWin, uint64_t groupId, uint64_t version);
-bool updateInfoIgnore(SUpdateInfo *pInfo, STimeWindow* pWin, uint64_t groupId, uint64_t version);
-void updateInfoDestroy(SUpdateInfo *pInfo);
-void updateInfoAddCloseWindowSBF(SUpdateInfo *pInfo);
-void updateInfoDestoryColseWinSBF(SUpdateInfo *pInfo);
-int32_t updateInfoSerialize(void *buf, int32_t bufLen, const SUpdateInfo *pInfo);
-int32_t updateInfoDeserialize(void *buf, int32_t bufLen, SUpdateInfo *pInfo);
+bool         updateInfoIsUpdated(SUpdateInfo *pInfo, uint64_t tableId, TSKEY ts);
+bool         updateInfoIsTableInserted(SUpdateInfo *pInfo, int64_t tbUid);
+void         updateInfoSetScanRange(SUpdateInfo *pInfo, STimeWindow *pWin, uint64_t groupId, uint64_t version);
+bool         updateInfoIgnore(SUpdateInfo *pInfo, STimeWindow *pWin, uint64_t groupId, uint64_t version);
+void         updateInfoDestroy(SUpdateInfo *pInfo);
+void         updateInfoAddCloseWindowSBF(SUpdateInfo *pInfo);
+void         updateInfoDestoryColseWinSBF(SUpdateInfo *pInfo);
+int32_t      updateInfoSerialize(void *buf, int32_t bufLen, const SUpdateInfo *pInfo);
+int32_t      updateInfoDeserialize(void *buf, int32_t bufLen, SUpdateInfo *pInfo);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* ifndef _TSTREAMUPDATE_H_ */
\ No newline at end of file
+#endif /* ifndef _TSTREAMUPDATE_H_ */

include/libs/sync/sync.h

@@ -30,6 +30,7 @@ extern bool gRaftDetailLog;
 #define SYNC_SPEED_UP_HB_TIMER 400
 #define SYNC_SPEED_UP_AFTER_MS (1000 * 20)
 #define SYNC_SLOW_DOWN_RANGE   100
+#define SYNC_MAX_READ_RANGE    10
 
 #define SYNC_MAX_BATCH_SIZE 1
 #define SYNC_INDEX_BEGIN    0
@@ -210,9 +211,12 @@ void        syncStop(int64_t rid);
 int32_t     syncSetStandby(int64_t rid);
 ESyncState  syncGetMyRole(int64_t rid);
 bool        syncIsReady(int64_t rid);
+bool        syncIsReadyForRead(int64_t rid);
 const char* syncGetMyRoleStr(int64_t rid);
 bool        syncRestoreFinish(int64_t rid);
 SyncTerm    syncGetMyTerm(int64_t rid);
+SyncIndex   syncGetLastIndex(int64_t rid);
+SyncIndex   syncGetCommitIndex(int64_t rid);
 SyncGroupId syncGetVgId(int64_t rid);
 void        syncGetEpSet(int64_t rid, SEpSet* pEpSet);
 void        syncGetRetryEpSet(int64_t rid, SEpSet* pEpSet);

source/client/src/tmq.c

@@ -56,8 +56,8 @@ struct tmq_conf_t {
   int8_t  autoCommit;
   int8_t  resetOffset;
   int8_t  withTbName;
-  int8_t  ssEnable;
-  int32_t ssBatchSize;
+  int8_t  snapEnable;
+  int32_t snapBatchSize;
 
   bool hbBgEnable;
 
@@ -287,16 +287,21 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
 
   if (strcmp(key, "experimental.snapshot.enable") == 0) {
     if (strcmp(value, "true") == 0) {
-      conf->ssEnable = true;
+      conf->snapEnable = true;
       return TMQ_CONF_OK;
     } else if (strcmp(value, "false") == 0) {
-      conf->ssEnable = false;
+      conf->snapEnable = false;
       return TMQ_CONF_OK;
     } else {
       return TMQ_CONF_INVALID;
     }
   }
 
+  if (strcmp(key, "experimental.snapshot.batch.size") == 0) {
+    conf->snapBatchSize = atoi(value);
+    return TMQ_CONF_OK;
+  }
+
   if (strcmp(key, "enable.heartbeat.background") == 0) {
     if (strcmp(value, "true") == 0) {
       conf->hbBgEnable = true;
@@ -310,11 +315,6 @@ tmq_conf_res_t tmq_conf_set(tmq_conf_t* conf, const char* key, const char* value
     return TMQ_CONF_OK;
   }
 
-  if (strcmp(key, "experimental.snapshot.batch.size") == 0) {
-    conf->ssBatchSize = atoi(value);
-    return TMQ_CONF_OK;
-  }
-
   if (strcmp(key, "td.connect.ip") == 0) {
     conf->ip = strdup(value);
     return TMQ_CONF_OK;
@@ -889,7 +889,7 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
   strcpy(pTmq->clientId, conf->clientId);
   strcpy(pTmq->groupId, conf->groupId);
   pTmq->withTbName = conf->withTbName;
-  pTmq->useSnapshot = conf->ssEnable;
+  pTmq->useSnapshot = conf->snapEnable;
   pTmq->autoCommit = conf->autoCommit;
   pTmq->autoCommitInterval = conf->autoCommitInterval;
   pTmq->commitCb = conf->commitCb;

source/dnode/vnode/src/inc/vnd.h

@@ -98,6 +98,7 @@ void    vnodeSyncStart(SVnode* pVnode);
 void    vnodeSyncClose(SVnode* pVnode);
 void    vnodeRedirectRpcMsg(SVnode* pVnode, SRpcMsg* pMsg);
 bool    vnodeIsLeader(SVnode* pVnode);
+bool    vnodeIsReadyForRead(SVnode* pVnode);
 bool    vnodeIsRoleLeader(SVnode* pVnode);
 
 #ifdef __cplusplus

source/dnode/vnode/src/tq/tqSink.c

@@ -17,7 +17,7 @@
 #include "tmsg.h"
 #include "tq.h"
 
-int32_t tdBuildDeleteReq(SVnode* pVnode, const char* stbFullName, const SSDataBlock* pDataBlock,
+int32_t tqBuildDeleteReq(SVnode* pVnode, const char* stbFullName, const SSDataBlock* pDataBlock,
                          SBatchDeleteReq* deleteReq) {
   ASSERT(pDataBlock->info.type == STREAM_DELETE_RESULT);
   int32_t          totRow = pDataBlock->info.rows;
@@ -68,9 +68,10 @@ SSubmitReq* tqBlockToSubmit(SVnode* pVnode, const SArray* pBlocks, const STSchem
       SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
       if (pDataBlock->info.type == STREAM_DELETE_RESULT) {
         int32_t padding1 = 0;
-        void*   padding2 = taosMemoryMalloc(1);
+        void*   padding2 = NULL;
         taosArrayPush(schemaReqSz, &padding1);
         taosArrayPush(schemaReqs, &padding2);
+        continue;
       }
 
       STagVal tagVal = {
@@ -138,8 +139,7 @@ SSubmitReq* tqBlockToSubmit(SVnode* pVnode, const SArray* pBlocks, const STSchem
       continue;
     }
     int32_t rows = pDataBlock->info.rows;
-    // TODO min
-    int32_t rowSize = pDataBlock->info.rowSize;
+    /*int32_t rowSize = pDataBlock->info.rowSize;*/
     int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSchema);
 
     int32_t schemaLen = 0;
@@ -150,7 +150,6 @@ SSubmitReq* tqBlockToSubmit(SVnode* pVnode, const SArray* pBlocks, const STSchem
   }
 
   // assign data
-  // TODO
   ret = rpcMallocCont(cap);
   ret->header.vgId = pVnode->config.vgId;
   ret->length = sizeof(SSubmitReq);
@@ -161,13 +160,12 @@ SSubmitReq* tqBlockToSubmit(SVnode* pVnode, const SArray* pBlocks, const STSchem
     SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);
     if (pDataBlock->info.type == STREAM_DELETE_RESULT) {
       pDeleteReq->suid = suid;
-      tdBuildDeleteReq(pVnode, stbFullName, pDataBlock, pDeleteReq);
+      tqBuildDeleteReq(pVnode, stbFullName, pDataBlock, pDeleteReq);
       continue;
     }
 
     blkHead->numOfRows = htonl(pDataBlock->info.rows);
     blkHead->sversion = htonl(pTSchema->version);
-    // TODO
     blkHead->suid = htobe64(suid);
     // uid is assigned by vnode
     blkHead->uid = 0;

source/dnode/vnode/src/tsdb/tsdbMemTable.c

@@ -196,9 +196,9 @@ int32_t tsdbDeleteTableData(STsdb *pTsdb, int64_t version, tb_uid_t suid, tb_uid
     tsdbCacheDeleteLast(pTsdb->lruCache, pTbData->uid, eKey);
   }
 
-  tsdbError("vgId:%d, delete data from table suid:%" PRId64 " uid:%" PRId64 " skey:%" PRId64 " eKey:%" PRId64
-            " since %s",
-            TD_VID(pTsdb->pVnode), suid, uid, sKey, eKey, tstrerror(code));
+  tsdbInfo("vgId:%d, delete data from table suid:%" PRId64 " uid:%" PRId64 " skey:%" PRId64 " eKey:%" PRId64
+           " since %s",
+           TD_VID(pTsdb->pVnode), suid, uid, sKey, eKey, tstrerror(code));
   return code;
 
 _err:

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

@@ -283,7 +283,7 @@ int32_t vnodePreprocessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
 
 int32_t vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
   vTrace("message in vnode query queue is processing");
-  if ((pMsg->msgType == TDMT_SCH_QUERY) && !vnodeIsLeader(pVnode)) {
+  if ((pMsg->msgType == TDMT_SCH_QUERY) && !vnodeIsReadyForRead(pVnode)) {
     vnodeRedirectRpcMsg(pVnode, pMsg);
     return 0;
   }
@@ -307,7 +307,7 @@ int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
   vTrace("vgId:%d, msg:%p in fetch queue is processing", pVnode->config.vgId, pMsg);
   if ((pMsg->msgType == TDMT_SCH_FETCH || pMsg->msgType == TDMT_VND_TABLE_META || pMsg->msgType == TDMT_VND_TABLE_CFG ||
        pMsg->msgType == TDMT_VND_BATCH_META) &&
-      !vnodeIsLeader(pVnode)) {
+      !vnodeIsReadyForRead(pVnode)) {
     vnodeRedirectRpcMsg(pVnode, pMsg);
     return 0;
   }

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

@@ -781,3 +781,17 @@ bool vnodeIsLeader(SVnode *pVnode) {
 
   return true;
 }
+
+bool vnodeIsReadyForRead(SVnode *pVnode) {
+  if (syncIsReady(pVnode->sync)) {
+    return true;
+  }
+
+  if (syncIsReadyForRead(pVnode->sync)) {
+    return true;
+  }
+
+  vDebug("vgId:%d, vnode not ready for read, state:%s, last:%ld, cmt:%ld", pVnode->config.vgId,
+         syncGetMyRoleStr(pVnode->sync), syncGetLastIndex(pVnode->sync), syncGetCommitIndex(pVnode->sync));
+  return false;
+}

source/libs/executor/src/scanoperator.c

@@ -13,11 +13,11 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "os.h"
 #include "executorimpl.h"
 #include "filter.h"
 #include "function.h"
 #include "functionMgt.h"
+#include "os.h"
 #include "querynodes.h"
 #include "systable.h"
 #include "tname.h"
@@ -178,8 +178,8 @@ static SResultRow* getTableGroupOutputBuf(SOperatorInfo* pOperator, uint64_t gro
 
   STableScanInfo* pTableScanInfo = pOperator->info;
 
-  SResultRowPosition* p1 =
-      (SResultRowPosition*)taosHashGet(pTableScanInfo->pdInfo.pAggSup->pResultRowHashTable, buf, GET_RES_WINDOW_KEY_LEN(sizeof(groupId)));
+  SResultRowPosition* p1 = (SResultRowPosition*)taosHashGet(pTableScanInfo->pdInfo.pAggSup->pResultRowHashTable, buf,
+                                                            GET_RES_WINDOW_KEY_LEN(sizeof(groupId)));
 
   if (p1 == NULL) {
     return NULL;
@@ -238,7 +238,7 @@ static FORCE_INLINE bool doFilterByBlockSMA(const SNode* pFilterNode, SColumnDat
 
   // todo move to the initialization function
   int32_t code = filterInitFromNode((SNode*)pFilterNode, &filter, 0);
-  bool keep = filterRangeExecute(filter, pColsAgg, numOfCols, numOfRows);
+  bool    keep = filterRangeExecute(filter, pColsAgg, numOfCols, numOfRows);
 
   filterFreeInfo(filter);
   return keep;
@@ -312,9 +312,9 @@ static int32_t loadDataBlock(SOperatorInfo* pOperator, STableScanInfo* pTableSca
     return TSDB_CODE_SUCCESS;
   } else if (*status == FUNC_DATA_REQUIRED_STATIS_LOAD) {
     pCost->loadBlockStatis += 1;
-    loadSMA = true; // mark the operation of load sma;
+    loadSMA = true;  // mark the operation of load sma;
     bool success = doLoadBlockSMA(pTableScanInfo, pBlock, pTaskInfo);
-    if (success) { // failed to load the block sma data, data block statistics does not exist, load data block instead
+    if (success) {  // failed to load the block sma data, data block statistics does not exist, load data block instead
       qDebug("%s data block SMA loaded, brange:%" PRId64 "-%" PRId64 ", rows:%d", GET_TASKID(pTaskInfo),
              pBlockInfo->window.skey, pBlockInfo->window.ekey, pBlockInfo->rows);
       return TSDB_CODE_SUCCESS;
@@ -453,7 +453,7 @@ int32_t addTagPseudoColumnData(SReadHandle* pHandle, SExprInfo* pPseudoExpr, int
         colDataAppendNNULL(pColInfoData, 0, pBlock->info.rows);
       } else if (pColInfoData->info.type != TSDB_DATA_TYPE_JSON) {
         colDataAppendNItems(pColInfoData, 0, data, pBlock->info.rows);
-      } else { // todo opt for json tag
+      } else {  // todo opt for json tag
         for (int32_t i = 0; i < pBlock->info.rows; ++i) {
           colDataAppend(pColInfoData, i, data, false);
         }
@@ -570,7 +570,10 @@ static SSDataBlock* doTableScanGroup(SOperatorInfo* pOperator) {
     if (pTableScanInfo->scanTimes < pTableScanInfo->scanInfo.numOfAsc) {
       setTaskStatus(pTaskInfo, TASK_NOT_COMPLETED);
       pTableScanInfo->scanFlag = REPEAT_SCAN;
-      qDebug("%s start to repeat ascending order scan data SELECT last_row(*),hostname from cpu group by hostname;blocks due to query func required", GET_TASKID(pTaskInfo));
+      qDebug(
+          "%s start to repeat ascending order scan data SELECT last_row(*),hostname from cpu group by hostname;blocks "
+          "due to query func required",
+          GET_TASKID(pTaskInfo));
 
       // do prepare for the next round table scan operation
       tsdbReaderReset(pTableScanInfo->dataReader, &pTableScanInfo->cond);
@@ -1174,16 +1177,18 @@ static void checkUpdateData(SStreamScanInfo* pInfo, bool invertible, SSDataBlock
   for (int32_t rowId = 0; rowId < pBlock->info.rows; rowId++) {
     SResultRowInfo dumyInfo;
     dumyInfo.cur.pageId = -1;
-    bool isClosed = false;
+    bool        isClosed = false;
     STimeWindow win = {.skey = INT64_MIN, .ekey = INT64_MAX};
     if (isOverdue(tsCol[rowId], &pInfo->twAggSup)) {
       win = getActiveTimeWindow(NULL, &dumyInfo, tsCol[rowId], &pInfo->interval, TSDB_ORDER_ASC);
       isClosed = isCloseWindow(&win, &pInfo->twAggSup);
     }
+    bool inserted = updateInfoIsTableInserted(pInfo->pUpdateInfo, pBlock->info.uid);
     // must check update info first.
     bool update = updateInfoIsUpdated(pInfo->pUpdateInfo, pBlock->info.uid, tsCol[rowId]);
-    if ((update || (isSignleIntervalWindow(pInfo) && isClosed &&
-        isDeletedWindow(&win, pBlock->info.groupId, pInfo->sessionSup.pIntervalAggSup))) && out) {
+    bool closedWin = isClosed && inserted && isSignleIntervalWindow(pInfo) &&
+                     isDeletedWindow(&win, pBlock->info.groupId, pInfo->sessionSup.pIntervalAggSup);
+    if ((update || closedWin) && out) {
       appendOneRow(pInfo->pUpdateDataRes, tsCol + rowId, tsCol + rowId, &pBlock->info.uid);
     }
   }
@@ -1390,8 +1395,8 @@ static SSDataBlock* doStreamScan(SOperatorInfo* pOperator) {
         SSDataBlock* pSDB = doRangeScan(pInfo, pInfo->pUpdateRes, pInfo->primaryTsIndex, &pInfo->updateResIndex);
         if (pSDB) {
           STableScanInfo* pTableScanInfo = pInfo->pTableScanOp->info;
-          uint64_t version = getReaderMaxVersion(pTableScanInfo->dataReader);
-          updateInfoSetScanRange(pInfo->pUpdateInfo, &pTableScanInfo->cond.twindows, pInfo->groupId,version);
+          uint64_t        version = getReaderMaxVersion(pTableScanInfo->dataReader);
+          updateInfoSetScanRange(pInfo->pUpdateInfo, &pTableScanInfo->cond.twindows, pInfo->groupId, version);
           pSDB->info.type = pInfo->scanMode == STREAM_SCAN_FROM_DATAREADER_RANGE ? STREAM_NORMAL : STREAM_PULL_DATA;
           checkUpdateData(pInfo, true, pSDB, false);
           return pSDB;
@@ -1445,7 +1450,8 @@ static SSDataBlock* doStreamScan(SOperatorInfo* pOperator) {
 
         setBlockIntoRes(pInfo, &block);
 
-        if (updateInfoIgnore(pInfo->pUpdateInfo, &pInfo->pRes->info.window, pInfo->pRes->info.groupId, pInfo->pRes->info.version)) {
+        if (updateInfoIgnore(pInfo->pUpdateInfo, &pInfo->pRes->info.window, pInfo->pRes->info.groupId,
+                             pInfo->pRes->info.version)) {
           printDataBlock(pInfo->pRes, "stream scan ignore");
           blockDataCleanup(pInfo->pRes);
           continue;
@@ -2248,7 +2254,7 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator) {
   // build message and send to mnode to fetch the content of system tables.
   SExecTaskInfo*     pTaskInfo = pOperator->pTaskInfo;
   SSysTableScanInfo* pInfo = pOperator->info;
-  char dbName[TSDB_DB_NAME_LEN] = {0};
+  char               dbName[TSDB_DB_NAME_LEN] = {0};
 
   const char* name = tNameGetTableName(&pInfo->name);
   if (pInfo->showRewrite) {
@@ -2260,8 +2266,8 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator) {
     return sysTableScanUserTables(pOperator);
   } else if (strncasecmp(name, TSDB_INS_TABLE_TAGS, TSDB_TABLE_FNAME_LEN) == 0) {
     return sysTableScanUserTags(pOperator);
-  } else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, TSDB_TABLE_FNAME_LEN) == 0 &&
-             pInfo->showRewrite && IS_SYS_DBNAME(dbName)) {
+  } else if (strncasecmp(name, TSDB_INS_TABLE_STABLES, TSDB_TABLE_FNAME_LEN) == 0 && pInfo->showRewrite &&
+             IS_SYS_DBNAME(dbName)) {
     return sysTableScanUserSTables(pOperator);
   } else {  // load the meta from mnode of the given epset
     if (pOperator->status == OP_EXEC_DONE) {
@@ -2541,7 +2547,7 @@ static void destroyTagScanOperatorInfo(void* param, int32_t numOfOutput) {
   pInfo->pRes = blockDataDestroy(pInfo->pRes);
 
   taosArrayDestroy(pInfo->pColMatchInfo);
-  
+
   taosMemoryFreeClear(param);
 }
 
@@ -2597,7 +2603,6 @@ _error:
 int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags, bool groupSort, SReadHandle* pHandle,
                                 STableListInfo* pTableListInfo, SNode* pTagCond, SNode* pTagIndexCond,
                                 const char* idStr) {
-
   int64_t st = taosGetTimestampUs();
 
   int32_t code = getTableList(pHandle->meta, pHandle->vnode, pScanNode, pTagCond, pTagIndexCond, pTableListInfo);
@@ -2606,7 +2611,7 @@ int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags
   }
 
   int64_t st1 = taosGetTimestampUs();
-  qDebug("generate queried table list completed, elapsed time:%.2f ms %s", (st1-st)/1000.0, idStr);
+  qDebug("generate queried table list completed, elapsed time:%.2f ms %s", (st1 - st) / 1000.0, idStr);
 
   if (taosArrayGetSize(pTableListInfo->pTableList) == 0) {
     qDebug("no table qualified for query, %s" PRIx64, idStr);
@@ -2620,7 +2625,7 @@ int32_t createScanTableListInfo(SScanPhysiNode* pScanNode, SNodeList* pGroupTags
   }
 
   int64_t st2 = taosGetTimestampUs();
-  qDebug("generate group id map completed, elapsed time:%.2f ms %s", (st2-st1)/1000.0, idStr);
+  qDebug("generate group id map completed, elapsed time:%.2f ms %s", (st2 - st1) / 1000.0, idStr);
 
   return TSDB_CODE_SUCCESS;
 }

source/libs/function/src/builtinsimpl.c

@@ -4918,6 +4918,16 @@ int32_t mavgFunction(SqlFunctionCtx* pCtx) {
   return numOfElems;
 }
 
+static SSampleInfo* getSampleOutputInfo(SqlFunctionCtx* pCtx) {
+  SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
+  SSampleInfo*         pInfo = GET_ROWCELL_INTERBUF(pResInfo);
+
+  pInfo->data = (char*)pInfo + sizeof(SSampleInfo);
+  pInfo->tuplePos = (STuplePos*)((char*)pInfo + sizeof(SSampleInfo) + pInfo->samples * pInfo->colBytes);
+
+  return pInfo;
+}
+
 bool getSampleFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) {
   SColumnNode* pCol = (SColumnNode*)nodesListGetNode(pFunc->pParameterList, 0);
   SValueNode*  pVal = (SValueNode*)nodesListGetNode(pFunc->pParameterList, 1);
@@ -4972,7 +4982,7 @@ static void doReservoirSample(SqlFunctionCtx* pCtx, SSampleInfo* pInfo, char* da
 
 int32_t sampleFunction(SqlFunctionCtx* pCtx) {
   SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
-  SSampleInfo*         pInfo = GET_ROWCELL_INTERBUF(pResInfo);
+  SSampleInfo*         pInfo = getSampleOutputInfo(pCtx);
 
   SInputColumnInfoData* pInput = &pCtx->input;
 
@@ -4998,7 +5008,7 @@ int32_t sampleFunction(SqlFunctionCtx* pCtx) {
 int32_t sampleFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SResultRowEntryInfo* pEntryInfo = GET_RES_INFO(pCtx);
 
-  SSampleInfo* pInfo = GET_ROWCELL_INTERBUF(pEntryInfo);
+  SSampleInfo* pInfo = getSampleOutputInfo(pCtx);
   pEntryInfo->complete = true;
 
   int32_t          slotId = pCtx->pExpr->base.resSchema.slotId;

source/libs/parser/src/parTranslater.c

@@ -1399,7 +1399,7 @@ static int32_t translateTimelineFunc(STranslateContext* pCxt, SFunctionNode* pFu
                                    "%s function must be used in select statements", pFunc->functionName);
   }
   SSelectStmt* pSelect = (SSelectStmt*)pCxt->pCurrStmt;
-  if (QUERY_NODE_TEMP_TABLE == nodeType(pSelect->pFromTable) &&
+  if (NULL != pSelect->pFromTable && QUERY_NODE_TEMP_TABLE == nodeType(pSelect->pFromTable) &&
       !isTimeLineQuery(((STempTableNode*)pSelect->pFromTable)->pSubquery)) {
     return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_NOT_ALLOWED_FUNC,
                                    "%s function requires valid time series input", pFunc->functionName);
@@ -2037,16 +2037,13 @@ static int32_t setVnodeSysTableVgroupList(STranslateContext* pCxt, SName* pName,
     code = getDBVgInfoImpl(pCxt, pName, &vgroupList);
   }
 
-  if (TSDB_CODE_SUCCESS == code &&
-      0 == strcmp(pRealTable->table.dbName, TSDB_INFORMATION_SCHEMA_DB) &&
-      0 == strcmp(pRealTable->table.tableName, TSDB_INS_TABLE_TAGS) &&
-      isSelectStmt(pCxt->pCurrStmt) &&
+  if (TSDB_CODE_SUCCESS == code && 0 == strcmp(pRealTable->table.dbName, TSDB_INFORMATION_SCHEMA_DB) &&
+      0 == strcmp(pRealTable->table.tableName, TSDB_INS_TABLE_TAGS) && isSelectStmt(pCxt->pCurrStmt) &&
       0 == taosArrayGetSize(vgroupList)) {
     ((SSelectStmt*)pCxt->pCurrStmt)->isEmptyResult = true;
   }
 
-  if (TSDB_CODE_SUCCESS == code &&
-      0 == strcmp(pRealTable->table.dbName, TSDB_INFORMATION_SCHEMA_DB) &&
+  if (TSDB_CODE_SUCCESS == code && 0 == strcmp(pRealTable->table.dbName, TSDB_INFORMATION_SCHEMA_DB) &&
       0 == strcmp(pRealTable->table.tableName, TSDB_INS_TABLE_TABLES)) {
     code = addMnodeToVgroupList(&pCxt->pParseCxt->mgmtEpSet, &vgroupList);
   }

source/libs/stream/src/streamUpdate.c

@@ -13,33 +13,31 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "tstreamUpdate.h"
+#include "query.h"
 #include "tencode.h"
+#include "tstreamUpdate.h"
 #include "ttime.h"
-#include "query.h"
 
-#define DEFAULT_FALSE_POSITIVE 0.01
-#define DEFAULT_BUCKET_SIZE    1310720
-#define DEFAULT_MAP_CAPACITY   1310720
-#define DEFAULT_MAP_SIZE       (DEFAULT_MAP_CAPACITY * 10)
-#define ROWS_PER_MILLISECOND   1
-#define MAX_NUM_SCALABLE_BF    100000
-#define MIN_NUM_SCALABLE_BF    10
-#define DEFAULT_PREADD_BUCKET  1
-#define MAX_INTERVAL           MILLISECOND_PER_MINUTE
-#define MIN_INTERVAL           (MILLISECOND_PER_SECOND * 10)
-#define DEFAULT_EXPECTED_ENTRIES    10000
-
-static int64_t adjustExpEntries(int64_t entries) {
-  return TMIN(DEFAULT_EXPECTED_ENTRIES, entries);
-}
+#define DEFAULT_FALSE_POSITIVE   0.01
+#define DEFAULT_BUCKET_SIZE      1310720
+#define DEFAULT_MAP_CAPACITY     1310720
+#define DEFAULT_MAP_SIZE         (DEFAULT_MAP_CAPACITY * 10)
+#define ROWS_PER_MILLISECOND     1
+#define MAX_NUM_SCALABLE_BF      100000
+#define MIN_NUM_SCALABLE_BF      10
+#define DEFAULT_PREADD_BUCKET    1
+#define MAX_INTERVAL             MILLISECOND_PER_MINUTE
+#define MIN_INTERVAL             (MILLISECOND_PER_SECOND * 10)
+#define DEFAULT_EXPECTED_ENTRIES 10000
+
+static int64_t adjustExpEntries(int64_t entries) { return TMIN(DEFAULT_EXPECTED_ENTRIES, entries); }
 
 static void windowSBfAdd(SUpdateInfo *pInfo, uint64_t count) {
   if (pInfo->numSBFs < count) {
     count = pInfo->numSBFs;
   }
   for (uint64_t i = 0; i < count; ++i) {
-    int64_t rows = adjustExpEntries(pInfo->interval * ROWS_PER_MILLISECOND);
+    int64_t      rows = adjustExpEntries(pInfo->interval * ROWS_PER_MILLISECOND);
     SScalableBf *tsSBF = tScalableBfInit(rows, DEFAULT_FALSE_POSITIVE);
     taosArrayPush(pInfo->pTsSBFs, &tsSBF);
   }
@@ -78,7 +76,7 @@ static int64_t adjustInterval(int64_t interval, int32_t precision) {
 
 static int64_t adjustWatermark(int64_t adjInterval, int64_t originInt, int64_t watermark) {
   if (watermark <= adjInterval) {
-    watermark = TMAX(originInt/adjInterval, 1) * adjInterval;
+    watermark = TMAX(originInt / adjInterval, 1) * adjInterval;
   } else if (watermark > MAX_NUM_SCALABLE_BF * adjInterval) {
     watermark = MAX_NUM_SCALABLE_BF * adjInterval;
   }/* else if (watermark < MIN_NUM_SCALABLE_BF * adjInterval) {
@@ -158,11 +156,17 @@ static SScalableBf *getSBf(SUpdateInfo *pInfo, TSKEY ts) {
   return res;
 }
 
+bool updateInfoIsTableInserted(SUpdateInfo *pInfo, int64_t tbUid) {
+  void *pVal = taosHashGet(pInfo->pMap, &tbUid, sizeof(int64_t));
+  if (pVal || taosHashGetSize(pInfo->pMap) >= DEFAULT_MAP_SIZE) return true;
+  return false;
+}
+
 bool updateInfoIsUpdated(SUpdateInfo *pInfo, uint64_t tableId, TSKEY ts) {
-  int32_t      res = TSDB_CODE_FAILED;
-  TSKEY* pMapMaxTs = taosHashGet(pInfo->pMap, &tableId, sizeof(uint64_t));
-  uint64_t     index = ((uint64_t)tableId) % pInfo->numBuckets;
-  TSKEY maxTs = *(TSKEY *)taosArrayGet(pInfo->pTsBuckets, index);
+  int32_t  res = TSDB_CODE_FAILED;
+  TSKEY   *pMapMaxTs = taosHashGet(pInfo->pMap, &tableId, sizeof(uint64_t));
+  uint64_t index = ((uint64_t)tableId) % pInfo->numBuckets;
+  TSKEY    maxTs = *(TSKEY *)taosArrayGet(pInfo->pTsBuckets, index);
   if (ts < maxTs - pInfo->watermark) {
     // this window has been closed.
     if (pInfo->pCloseWinSBF) {
@@ -178,42 +182,47 @@ bool updateInfoIsUpdated(SUpdateInfo *pInfo, uint64_t tableId, TSKEY ts) {
   }
 
   int32_t size = taosHashGetSize(pInfo->pMap);
-  if ( (!pMapMaxTs && size < DEFAULT_MAP_SIZE) || (pMapMaxTs && *pMapMaxTs < ts)) {
+  if ((!pMapMaxTs && size < DEFAULT_MAP_SIZE) || (pMapMaxTs && *pMapMaxTs < ts)) {
     taosHashPut(pInfo->pMap, &tableId, sizeof(uint64_t), &ts, sizeof(TSKEY));
     return false;
   }
 
-  if ( !pMapMaxTs && maxTs < ts ) {
+  if (!pMapMaxTs && maxTs < ts) {
     taosArraySet(pInfo->pTsBuckets, index, &ts);
     return false;
   }
 
   if (ts < pInfo->minTS) {
-    qDebug("===stream===Update. tableId:%" PRIu64 ", maxTs:%" PRIu64 ", mapMaxTs:%" PRIu64 ", ts:%" PRIu64 , tableId, maxTs, *pMapMaxTs, ts);
+    qDebug("===stream===Update. tableId:%" PRIu64 ", maxTs:%" PRIu64 ", mapMaxTs:%" PRIu64 ", ts:%" PRIu64, tableId,
+           maxTs, *pMapMaxTs, ts);
     return true;
   } else if (res == TSDB_CODE_SUCCESS) {
     return false;
   }
-  qDebug("===stream===Update. tableId:%" PRIu64 ", maxTs:%" PRIu64 ", mapMaxTs:%" PRIu64 ", ts:%" PRIu64 , tableId, maxTs, *pMapMaxTs, ts);
+  qDebug("===stream===Update. tableId:%" PRIu64 ", maxTs:%" PRIu64 ", mapMaxTs:%" PRIu64 ", ts:%" PRIu64, tableId,
+         maxTs, *pMapMaxTs, ts);
   // check from tsdb api
   return true;
 }
 
-void updateInfoSetScanRange(SUpdateInfo *pInfo, STimeWindow* pWin, uint64_t groupId, uint64_t version) {
-  qDebug("===stream===groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64 , groupId, pWin->skey, pWin->ekey, version);
+void updateInfoSetScanRange(SUpdateInfo *pInfo, STimeWindow *pWin, uint64_t groupId, uint64_t version) {
+  qDebug("===stream===groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64, groupId,
+         pWin->skey, pWin->ekey, version);
   pInfo->scanWindow = *pWin;
   pInfo->scanGroupId = groupId;
   pInfo->maxVersion = version;
 }
 
-bool updateInfoIgnore(SUpdateInfo *pInfo, STimeWindow* pWin, uint64_t groupId, uint64_t version) {
+bool updateInfoIgnore(SUpdateInfo *pInfo, STimeWindow *pWin, uint64_t groupId, uint64_t version) {
   if (!pInfo) {
     return false;
   }
-  qDebug("===stream===check groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64 , groupId, pWin->skey, pWin->ekey, version);
-  if (pInfo->scanGroupId == groupId && pInfo->scanWindow.skey <= pWin->skey &&
-      pWin->ekey <= pInfo->scanWindow.ekey && version <= pInfo->maxVersion ) {
-    qDebug("===stream===ignore groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64 , groupId, pWin->skey, pWin->ekey, version);
+  qDebug("===stream===check groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64, groupId,
+         pWin->skey, pWin->ekey, version);
+  if (pInfo->scanGroupId == groupId && pInfo->scanWindow.skey <= pWin->skey && pWin->ekey <= pInfo->scanWindow.ekey &&
+      version <= pInfo->maxVersion) {
+    qDebug("===stream===ignore groupId:%" PRIu64 ", startTs:%" PRIu64 ", endTs:%" PRIu64 ", version:%" PRIu64, groupId,
+           pWin->skey, pWin->ekey, version);
     return true;
   }
   return false;
@@ -261,7 +270,7 @@ int32_t updateInfoSerialize(void *buf, int32_t bufLen, const SUpdateInfo *pInfo)
   int32_t size = taosArrayGetSize(pInfo->pTsBuckets);
   if (tEncodeI32(&encoder, size) < 0) return -1;
   for (int32_t i = 0; i < size; i++) {
-    TSKEY* pTs = (TSKEY*)taosArrayGet(pInfo->pTsBuckets, i);
+    TSKEY *pTs = (TSKEY *)taosArrayGet(pInfo->pTsBuckets, i);
     if (tEncodeI64(&encoder, *pTs) < 0) return -1;
   }
 
@@ -270,7 +279,7 @@ int32_t updateInfoSerialize(void *buf, int32_t bufLen, const SUpdateInfo *pInfo)
   int32_t sBfSize = taosArrayGetSize(pInfo->pTsSBFs);
   if (tEncodeI32(&encoder, sBfSize) < 0) return -1;
   for (int32_t i = 0; i < sBfSize; i++) {
-    SScalableBf* pSBf = taosArrayGetP(pInfo->pTsSBFs, i);
+    SScalableBf *pSBf = taosArrayGetP(pInfo->pTsSBFs, i);
     if (tScalableBfEncode(pSBf, &encoder) < 0) return -1;
   }
 
@@ -278,17 +287,17 @@ int32_t updateInfoSerialize(void *buf, int32_t bufLen, const SUpdateInfo *pInfo)
   if (tEncodeI64(&encoder, pInfo->interval) < 0) return -1;
   if (tEncodeI64(&encoder, pInfo->watermark) < 0) return -1;
   if (tEncodeI64(&encoder, pInfo->minTS) < 0) return -1;
-  
+
   if (tScalableBfEncode(pInfo->pCloseWinSBF, &encoder) < 0) return -1;
 
   int32_t mapSize = taosHashGetSize(pInfo->pMap);
   if (tEncodeI32(&encoder, mapSize) < 0) return -1;
-  void*  pIte = NULL;
+  void  *pIte = NULL;
   size_t keyLen = 0;
   while ((pIte = taosHashIterate(pInfo->pMap, pIte)) != NULL) {
-    void* key = taosHashGetKey(pIte, &keyLen);
-    if (tEncodeU64(&encoder, *(uint64_t*)key) < 0) return -1;
-    if (tEncodeI64(&encoder, *(TSKEY*)pIte) < 0) return -1;
+    void *key = taosHashGetKey(pIte, &keyLen);
+    if (tEncodeU64(&encoder, *(uint64_t *)key) < 0) return -1;
+    if (tEncodeI64(&encoder, *(TSKEY *)pIte) < 0) return -1;
   }
 
   if (tEncodeI64(&encoder, pInfo->scanWindow.skey) < 0) return -1;
@@ -311,7 +320,7 @@ int32_t updateInfoDeserialize(void *buf, int32_t bufLen, SUpdateInfo *pInfo) {
 
   int32_t size = 0;
   if (tDecodeI32(&decoder, &size) < 0) return -1;
-  pInfo->pTsBuckets =  taosArrayInit(size, sizeof(TSKEY));
+  pInfo->pTsBuckets = taosArrayInit(size, sizeof(TSKEY));
   TSKEY ts = INT64_MIN;
   for (int32_t i = 0; i < size; i++) {
     if (tDecodeI64(&decoder, &ts) < 0) return -1;
@@ -324,7 +333,7 @@ int32_t updateInfoDeserialize(void *buf, int32_t bufLen, SUpdateInfo *pInfo) {
   if (tDecodeI32(&decoder, &sBfSize) < 0) return -1;
   pInfo->pTsSBFs = taosArrayInit(sBfSize, sizeof(void *));
   for (int32_t i = 0; i < sBfSize; i++) {
-    SScalableBf* pSBf = tScalableBfDecode(&decoder);
+    SScalableBf *pSBf = tScalableBfDecode(&decoder);
     if (!pSBf) return -1;
     taosArrayPush(pInfo->pTsSBFs, &pSBf);
   }
@@ -337,11 +346,11 @@ int32_t updateInfoDeserialize(void *buf, int32_t bufLen, SUpdateInfo *pInfo) {
 
   int32_t mapSize = 0;
   if (tDecodeI32(&decoder, &mapSize) < 0) return -1;
-  _hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY);
+  _hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_UBIGINT);
   pInfo->pMap = taosHashInit(mapSize, hashFn, true, HASH_NO_LOCK);
   uint64_t uid = 0;
   ts = INT64_MIN;
-  for(int32_t i = 0; i < mapSize; i++) {
+  for (int32_t i = 0; i < mapSize; i++) {
     if (tDecodeU64(&decoder, &uid) < 0) return -1;
     if (tDecodeI64(&decoder, &ts) < 0) return -1;
     taosHashPut(pInfo->pMap, &uid, sizeof(uint64_t), &ts, sizeof(TSKEY));

source/libs/sync/src/syncMain.c

@@ -392,6 +392,29 @@ bool syncIsReady(int64_t rid) {
   return b;
 }
 
+bool syncIsReadyForRead(int64_t rid) {
+  SSyncNode* pSyncNode = (SSyncNode*)taosAcquireRef(tsNodeRefId, rid);
+  if (pSyncNode == NULL) {
+    return false;
+  }
+  ASSERT(rid == pSyncNode->rid);
+
+  // TODO: last not noop?
+  SyncIndex lastIndex = syncNodeGetLastIndex(pSyncNode);
+  bool b = (pSyncNode->state == TAOS_SYNC_STATE_LEADER) && (pSyncNode->commitIndex >= lastIndex - SYNC_MAX_READ_RANGE);
+  taosReleaseRef(tsNodeRefId, pSyncNode->rid);
+
+  // if false, set error code
+  if (false == b) {
+    if (pSyncNode->state != TAOS_SYNC_STATE_LEADER) {
+      terrno = TSDB_CODE_SYN_NOT_LEADER;
+    } else {
+      terrno = TSDB_CODE_APP_NOT_READY;
+    }
+  }
+  return b;
+}
+
 bool syncIsRestoreFinish(int64_t rid) {
   SSyncNode* pSyncNode = (SSyncNode*)taosAcquireRef(tsNodeRefId, rid);
   if (pSyncNode == NULL) {
@@ -519,6 +542,30 @@ SyncTerm syncGetMyTerm(int64_t rid) {
   return term;
 }
 
+SyncIndex syncGetLastIndex(int64_t rid) {
+  SSyncNode* pSyncNode = (SSyncNode*)taosAcquireRef(tsNodeRefId, rid);
+  if (pSyncNode == NULL) {
+    return SYNC_INDEX_INVALID;
+  }
+  ASSERT(rid == pSyncNode->rid);
+  SyncIndex lastIndex = syncNodeGetLastIndex(pSyncNode);
+
+  taosReleaseRef(tsNodeRefId, pSyncNode->rid);
+  return lastIndex;
+}
+
+SyncIndex syncGetCommitIndex(int64_t rid) {
+  SSyncNode* pSyncNode = (SSyncNode*)taosAcquireRef(tsNodeRefId, rid);
+  if (pSyncNode == NULL) {
+    return SYNC_INDEX_INVALID;
+  }
+  ASSERT(rid == pSyncNode->rid);
+  SyncIndex cmtIndex = pSyncNode->commitIndex;
+
+  taosReleaseRef(tsNodeRefId, pSyncNode->rid);
+  return cmtIndex;
+}
+
 SyncGroupId syncGetVgId(int64_t rid) {
   SSyncNode* pSyncNode = (SSyncNode*)taosAcquireRef(tsNodeRefId, rid);
   if (pSyncNode == NULL) {
@@ -828,6 +875,15 @@ int32_t syncNodePropose(SSyncNode* pSyncNode, SRpcMsg* pMsg, bool isWeak) {
       pSyncNode->changing = true;
     }
 
+    // not restored, vnode enable
+    if (!pSyncNode->restoreFinish && pSyncNode->vgId != 1) {
+      ret = -1;
+      terrno = TSDB_CODE_SYN_PROPOSE_NOT_READY;
+      sError("vgId:%d, failed to sync propose since not ready, type:%s, last:%ld, cmt:%ld", pSyncNode->vgId,
+             TMSG_INFO(pMsg->msgType), syncNodeGetLastIndex(pSyncNode), pSyncNode->commitIndex);
+      goto _END;
+    }
+
     SRespStub stub;
     stub.createTime = taosGetTimestampMs();
     stub.rpcMsg = *pMsg;

tests/script/jenkins/basic.txt

@@ -237,8 +237,8 @@
 ./test.sh -f tsim/stream/distributeInterval0.sim
 ./test.sh -f tsim/stream/distributeIntervalRetrive0.sim
 ./test.sh -f tsim/stream/distributeSession0.sim
-#./test.sh -f tsim/stream/session0.sim
-#./test.sh -f tsim/stream/session1.sim
+./test.sh -f tsim/stream/session0.sim
+./test.sh -f tsim/stream/session1.sim
 ./test.sh -f tsim/stream/state0.sim
 ./test.sh -f tsim/stream/triggerInterval0.sim
 ./test.sh -f tsim/stream/triggerSession0.sim

tests/script/tsim/stream/session0.sim

@@ -83,22 +83,22 @@ if $data11 != 3 then
   goto loop0
 endi
 
-if $data12 != NULL then
+if $data12 != 10 then
   print ======data12=$data12
   goto loop0
 endi
 
-if $data13 != NULL then
+if $data13 != 10 then
   print ======data13=$data13
   goto loop0
 endi
 
-if $data14 != NULL then
+if $data14 != 1.100000000 then
   print ======data14=$data14
   return -1
 endi
 
-if $data15 != NULL then
+if $data15 != 0.000000000 then
   print ======data15=$data15
   return -1
 endi
@@ -141,38 +141,38 @@ if $data01 != 7 then
   goto loop1
 endi
 
-if $data02 != NULL then
+if $data02 != 18 then
   print =====data02=$data02
   goto loop1
 endi
 
-if $data03 != NULL then
+if $data03 != 4 then
   print =====data03=$data03
   goto loop1
 endi
 
-if $data04 != NULL then
-  print ======$data04
+if $data04 != 1.000000000 then
+  print ======data04=$data04
   return -1
 endi
 
-if $data05 != NULL then
-  print ======$data05
+if $data05 != 1.154700538 then
+  print ======data05=$data05
   return -1
 endi
 
 if $data06 != 4 then
-  print ======$data06
+  print ======data06=$data06
   return -1
 endi
 
 if $data07 != 1.000000000 then
-  print ======$data07
+  print ======data07=$data07
   return -1
 endi
 
 if $data08 != 13 then
-  print ======$data08
+  print ======data08=$data08
   return -1
 endi