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琴师

转发：pyflink1.11.0window

------------------ 原始邮件 ------------------
发件人: "奇怪的不朽琴师" <[hidden email]>;
发送时间: 2020年7月9日(星期四) 下午5:08
收件人: "godfrey he"<[hidden email]>;

主题: pyflink1.11.0window

你好：
   我在使用pyflink1.11版本时，window开窗仍会报错
: org.apache.flink.table.api.ValidationException: A group window expects a time attribute for grouping in a stream environment.

请问这个问题没有修复么？或者是我使用的方式不对，如果是使用不对，能提供一个正确的案例么？
代码如下
谢谢

def from_kafka_to_kafka_demo():
    s_env = StreamExecutionEnvironment.get_execution_environment()
    s_env.set_parallelism(1)

    # use blink table planner
    st_env = StreamTableEnvironment.create(s_env)

    # register source and sink
    register_rides_source(st_env)
    register_rides_sink(st_env)

    st_env.from_path("source1")\
        .window(Tumble.over("1.secends").on("time1").alias("w")) \
        .group_by("w") \
        .select(" id,  time1 , time1 ")\
        .insert_into("sink1")
   
    st_env.execute("2-from_kafka_to_kafka")

def register_rides_source(st_env):
    source_ddl = \
    '''
    create table source1(
        id int,
     time1 timestamp,
     type string
     ) with (
    'connector.type' = 'kafka',
    'update-mode' = 'append',
    'connector.topic' = 'tp1',
    'connector.properties.bootstrap.servers' = 'localhost:9092'
     )
    '''
    st_env.sql_update(source_ddl)

def register_rides_sink(st_env):
    sink_ddl = \
    '''
    create table sink1(
        id int,
     time1 timestamp,
     time2 timestamp
     ) with (
    'connector.type' = 'kafka',
    'update-mode' = 'append',
    'connector.topic' = 'tp3',
    'connector.properties.bootstrap.servers' = 'localhost:9092'
     )
    '''
    st_env.sql_update(sink_ddl)

if __name__ == '__main__':
    from_kafka_to_kafka_demo()

   

Shuiqiang Chen

Re: pyflink1.11.0window

琴师你好，

你的source ddl里有指定time1为 time attribute吗？
create table source1(
id int,
time1 timestamp,
type string,
WATERMARK FOR time1 as time1 - INTERVAL '2' SECOND
) with (...)

奇怪的不朽琴师 <[hidden email]> 于2020年7月10日周五上午8:43写道：

> ------------------ 原始邮件 ------------------
> 发件人:
> "奇怪的不朽琴师"
> <
> [hidden email]>;
> 发送时间: 2020年7月9日(星期四) 下午5:08
> 收件人: "godfrey he"<[hidden email]>;
>
> 主题: pyflink1.11.0window
>
>
>
> 你好：
>    我在使用pyflink1.11版本时，window开窗仍会报错
> : org.apache.flink.table.api.ValidationException: A group window expects a
> time attribute for grouping in a stream environment.
>
> 请问这个问题没有修复么？或者是我使用的方式不对，如果是使用不对，能提供一个正确的案例么？
> 代码如下
> 谢谢
>
>
> def from_kafka_to_kafka_demo():
>     s_env =
> StreamExecutionEnvironment.get_execution_environment()
>     s_env.set_parallelism(1)
>
>
>     # use blink table planner
>     st_env = StreamTableEnvironment.create(s_env)
>
>
>     # register source and sink
>     register_rides_source(st_env)
>     register_rides_sink(st_env)
>
>
>     st_env.from_path("source1")\
>        
> .window(Tumble.over("1.secends").on("time1").alias("w")) \
>         .group_by("w") \
>         .select(" id,  time1 , time1 ")\
>         .insert_into("sink1")
>    
>     st_env.execute("2-from_kafka_to_kafka")
>
>
>
>
> def register_rides_source(st_env):
>     source_ddl = \
>     '''
>     create table source1(
>         id int,
>      time1 timestamp,
>      type string
>      ) with (
>     'connector.type' = 'kafka',
>     'update-mode' = 'append',
>     'connector.topic' = 'tp1',
>     'connector.properties.bootstrap.servers' = 'localhost:9092'
>      )
>     '''
>     st_env.sql_update(source_ddl)
>
>
>
>
> def register_rides_sink(st_env):
>     sink_ddl = \
>     '''
>     create table sink1(
>         id int,
>      time1 timestamp,
>      time2 timestamp
>      ) with (
>     'connector.type' = 'kafka',
>     'update-mode' = 'append',
>     'connector.topic' = 'tp3',
>     'connector.properties.bootstrap.servers' = 'localhost:9092'
>      )
>     '''
>     st_env.sql_update(sink_ddl)
>
>
>
>
> if __name__ == '__main__':
>     from_kafka_to_kafka_demo()
>
>
>    

琴师

回复： pyflink1.11.0window

In reply to this post by Shuiqiang Chen

你好：
     他这个会自动转译空格回车啥的符号，暂时没什么好办法，很难受，大佬这边有pyflink的多表关联的demo么，万分感谢！

发送

------------------ 原始邮件 ------------------
发件人: "user-zh" <[hidden email]>;
发送时间: 2020年7月20日(星期一) 晚上8:42
收件人: "user-zh"<[hidden email]>;

主题: Re: pyflink1.11.0window

看看异常信息，是不是你的insert mode没配置对。
BTW, 你粘贴的文本带有很多"&nbsp;"，有点影响可读性。

Best，
Shuiqiang

奇怪的不朽琴师 <[hidden email]> 于2020年7月20日周一下午4:23写道：

> HI ：
> &nbsp; &nbsp; 我现在有一个新的问题，我在此基础上加了一个关联，再写入kafka时报错，如下
> Traceback (most recent call last):
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py", line
> 147, in deco
> &nbsp; &nbsp; return f(*a, **kw)
> &nbsp; File "/usr/local/lib/python3.7/site-packages/py4j/protocol.py",
> line 328, in get_return_value
> &nbsp; &nbsp; format(target_id, ".", name), value)
> py4j.protocol.Py4JJavaError: An error occurred while calling o5.sqlUpdate.
> : org.apache.flink.table.api.TableException: AppendStreamTableSink
> requires that Table has only insert changes.
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:123)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:48)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:58)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:48)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:59)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.Iterator$class.foreach(Iterator.scala:891)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractTraversable.map(Traversable.scala:104)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:59)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:153)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.translate(TableEnvironmentImpl.java:685)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:495)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> java.lang.reflect.Method.invoke(Method.java:498)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
> &nbsp; &nbsp; &nbsp; &nbsp; at java.lang.Thread.run(Thread.java:748)
>
>
>
>
> During handling of the above exception, another exception occurred:
>
>
> Traceback (most recent call last):
> &nbsp; File "tou.py", line 99, in <module&gt;
> &nbsp; &nbsp; from_kafka_to_kafka_demo()
> &nbsp; File "tou.py", line 33, in from_kafka_to_kafka_demo
> &nbsp; &nbsp; st_env.sql_update("insert into flink_result select
> id,type,rowtime from final_result2")
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/table/table_environment.py",
> line 547, in sql_update
> &nbsp; &nbsp; self._j_tenv.sqlUpdate(stmt)
> &nbsp; File "/usr/local/lib/python3.7/site-packages/py4j/java_gateway.py",
> line 1286, in __call__
> &nbsp; &nbsp; answer, self.gateway_client, self.target_id, self.name)
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py", line
> 154, in deco
> &nbsp; &nbsp; raise exception_mapping[exception](s.split(': ', 1)[1],
> stack_trace)
> pyflink.util.exceptions.TableException: 'AppendStreamTableSink requires
> that Table has only insert changes.'
>
>
>
>
>
> 这种应该如何实现，需求大概是一个流表（需要分组汇总）关联一个维表。
>
>
> from pyflink.datastream import StreamExecutionEnvironment,
> TimeCharacteristic
> from pyflink.table import StreamTableEnvironment, DataTypes,
> EnvironmentSettings,DataTypes, CsvTableSource, CsvTableSink
> from pyflink.table.descriptors import Schema, Kafka, Json, Rowtime
> from pyflink.table.window import Tumble&nbsp;
>
>
>
>
> def from_kafka_to_kafka_demo():
>
>
> &nbsp; &nbsp; # use blink table planner
> &nbsp; &nbsp; env = StreamExecutionEnvironment.get_execution_environment()
> &nbsp; &nbsp;
> env.set_stream_time_characteristic(TimeCharacteristic.EventTime)
> &nbsp; &nbsp; env_settings =
> EnvironmentSettings.Builder().use_blink_planner().build()
> &nbsp; &nbsp; st_env =
> StreamTableEnvironment.create(stream_execution_environment=env,environment_settings=env_settings)
>
>
> &nbsp; &nbsp; # register source and sink
> &nbsp; &nbsp; register_rides_source(st_env)
> &nbsp; &nbsp; register_rides_sink(st_env)
> &nbsp; &nbsp; register_mysql_source(st_env)
>
>
> &nbsp; &nbsp; query = """
> &nbsp; &nbsp; select&nbsp; cast(sum(t1.id) as int) as id, max(t1.type) as
> type,cast(tumble_start(t1.time1, interval '4' second) as bigint) as rowtime
> &nbsp; &nbsp; from source1 t1&nbsp;
> &nbsp; &nbsp; group by tumble(t1.time1, interval '4' second)
> &nbsp; &nbsp; """
> &nbsp; &nbsp; count_result = st_env.sql_query(query)
> &nbsp; &nbsp; st_env.create_temporary_view('final_result', count_result)
> &nbsp; &nbsp; query2 = """
> &nbsp; &nbsp; select&nbsp; t1.id,t2.type,t1.rowtime from final_result t1
> left join dim_mysql t2 on t1.type=t2.id
> &nbsp; &nbsp; """
> &nbsp; &nbsp; count_result2 = st_env.sql_query(query2)
> &nbsp; &nbsp; st_env.create_temporary_view('final_result2', count_result2)
>
>
> &nbsp; &nbsp; st_env.sql_update("insert into flink_result select
> id,type,rowtime from final_result2")
> &nbsp; &nbsp; st_env.execute("2-from_kafka_to_kafka")
> &nbsp; &nbsp;&nbsp;
>
>
>
>
> def register_rides_source(st_env):
> &nbsp; &nbsp; source_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; create table source1(
> &nbsp; &nbsp; &nbsp;id int,
> &nbsp; &nbsp; &nbsp;time2 varchar ,
> &nbsp; &nbsp; &nbsp;time1 as TO_TIMESTAMP(time2,'yyyyMMddHHmmss'),
> &nbsp; &nbsp; &nbsp;type string,
> &nbsp; &nbsp; &nbsp;WATERMARK FOR time1 as time1 - INTERVAL '2' SECOND
> &nbsp; &nbsp; &nbsp;) with (
> &nbsp; &nbsp; 'connector.type' = 'kafka',
> &nbsp; &nbsp; 'connector.topic' = 'tp1',
> &nbsp; &nbsp; 'connector.startup-mode' = 'latest-offset',
> &nbsp; &nbsp; 'connector.properties.bootstrap.servers' = 'localhost:9092',
> &nbsp; &nbsp; 'connector.properties.zookeeper.connect' = 'localhost:2181',
> &nbsp; &nbsp; 'format.type' = 'json',
> &nbsp; &nbsp; 'connector.version' = 'universal'
> &nbsp; &nbsp; &nbsp;)
> &nbsp; &nbsp; """
> &nbsp; &nbsp; st_env.sql_update(source_ddl)
>
>
> def register_mysql_source(st_env):
> &nbsp; &nbsp; source_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; CREATE TABLE dim_mysql (
> &nbsp; &nbsp; id varchar,&nbsp; --&nbsp;
> &nbsp; &nbsp; type varchar --&nbsp;
> &nbsp; &nbsp; ) WITH (
> &nbsp; &nbsp; 'connector.type' = 'jdbc',
> &nbsp; &nbsp; 'connector.url' = 'jdbc:mysql://localhost:3390/test',
> &nbsp; &nbsp; 'connector.table' = 'flink_test',
> &nbsp; &nbsp; 'connector.driver' = 'com.mysql.jdbc.Driver',
> &nbsp; &nbsp; 'connector.username' = '****',
> &nbsp; &nbsp; 'connector.password' = '*****',
> &nbsp; &nbsp; 'connector.lookup.cache.max-rows' = '5000',
> &nbsp; &nbsp; 'connector.lookup.cache.ttl' = '10min'
> &nbsp; &nbsp; )
> &nbsp; &nbsp; """&nbsp; &nbsp;&nbsp;
> &nbsp; &nbsp; st_env.sql_update(source_ddl)
>
>
> def register_rides_sink(st_env):
> &nbsp; &nbsp; sink_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; CREATE TABLE flink_result (
> &nbsp; &nbsp; id int,&nbsp; &nbsp;
> &nbsp; &nbsp; type varchar,
> &nbsp; &nbsp; rtime bigint,
> &nbsp; &nbsp; primary key(id)
> &nbsp; &nbsp; ) WITH (
> &nbsp; &nbsp; with (
> &nbsp; &nbsp; 'connector.type' = 'kafka',
> &nbsp; &nbsp; 'connector.topic' = 'tp4',
> &nbsp; &nbsp; 'connector.startup-mode' = 'latest-offset',
> &nbsp; &nbsp; 'connector.properties.bootstrap.servers' = 'localhost:9092',
> &nbsp; &nbsp; 'connector.properties.zookeeper.connect' = 'localhost:2181',
> &nbsp; &nbsp; 'format.type' = 'json',
> &nbsp; &nbsp; 'connector.version' = 'universal'
> &nbsp; &nbsp; &nbsp;)
> &nbsp; &nbsp; )
> &nbsp; &nbsp; """
> &nbsp; &nbsp; st_env.sql_update(sink_ddl)
>
>
>
>
> if __name__ == '__main__':
> &nbsp; &nbsp; from_kafka_to_kafka_demo()
>
>
>
>
>
> ------------------&nbsp;原始邮件&nbsp;------------------
> 发件人:
>                                                   "我自己的邮箱"
>                                                                   <
> [hidden email]&gt;;
> 发送时间:&nbsp;2020年7月15日(星期三) 下午5:30
> 收件人:&nbsp;"user-zh"<[hidden email]&gt;;
>
> 主题:&nbsp;回复： pyflink1.11.0window
>
>
>
> &nbsp; &nbsp; &nbsp;非常感谢！
>
>
>
>
> ------------------ 原始邮件 ------------------
> 发件人:
>                                                   "user-zh"
>                                                                     <
> [hidden email]&gt;;
> 发送时间:&nbsp;2020年7月15日(星期三) 下午5:23
> 收件人:&nbsp;"user-zh"<[hidden email]&gt;;
>
> 主题:&nbsp;Re: pyflink1.11.0window
>
>
>
> 下面这个例子从kafka读取json格式的数据，然后做窗口聚合后写入es，可以参考下代码结构，修改相应数据字段。这份代码你本地应该是不能运行的
>
> from pyflink.datastream import StreamExecutionEnvironment,
> TimeCharacteristic
> from pyflink.table import StreamTableEnvironment, DataTypes,
> EnvironmentSettings
> from pyflink.table.udf import udf
>
>
> @udf(input_types=[DataTypes.INT()], result_type=DataTypes.STRING())
> def platform_code_to_name(code):
> &nbsp; &nbsp; return "mobile" if code == 0 else "pc"
>
>
> def log_processing():
> &nbsp; &nbsp; env = StreamExecutionEnvironment.get_execution_environment()
> &nbsp; &nbsp;
> env.set_stream_time_characteristic(TimeCharacteristic.EventTime)
> &nbsp; &nbsp; env_settings =
> EnvironmentSettings.Builder().use_blink_planner().build()
> &nbsp; &nbsp; t_env =
> StreamTableEnvironment.create(stream_execution_environment=env,
> environment_settings=env_settings)
>
> &nbsp; &nbsp; source_ddl = """
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; CREATE TABLE
> payment_msg(
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; createTime VARCHAR,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; rt as TO_TIMESTAMP(createTime),
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; orderId BIGINT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; payAmount DOUBLE,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; payPlatform INT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; paySource INT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; WATERMARK FOR rt as rt - INTERVAL '2' SECOND
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; ) WITH (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.type' = 'kafka',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.version' = 'universal',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.topic' = 'payment_msg_2',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.properties.bootstrap.servers' = '0.0.0.0:9092',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; '
> connector.properties.group.id' = 'test_3',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.startup-mode' = 'latest-offset',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'format.type' = 'json'
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; )
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; """
> &nbsp; &nbsp; t_env.sql_update(source_ddl)
>
> &nbsp; &nbsp; es_sink_ddl = """
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; CREATE TABLE
> es_sink (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; platform
> VARCHAR,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; pay_amount
> DOUBLE,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; rowtime
> TIMESTAMP(3)
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; ) with (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.type' = 'elasticsearch',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.version' = '7',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.hosts' = '<a href="http://localhost:9200'">http://localhost:9200',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.index' = 'platform_pay_amount_1',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.document-type' = 'payment',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'update-mode' = 'upsert',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.flush-on-checkpoint' = 'true',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.key-delimiter' = '$',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.key-null-literal' = 'n/a',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.max-size' = '42mb',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.max-actions' = '32',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.interval' = '1000',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.backoff.delay' = '1000',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'format.type' = 'json'
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; )
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; t_env.sql_update(es_sink_ddl)
>
> &nbsp; &nbsp; t_env.register_function('platformcodetoname',
> platform_code_to_name)
>
> &nbsp; &nbsp; query = """
> &nbsp; &nbsp; select platformcodetoname(payPlatform) as platform,
> sum(payAmount)
> as pay_amount, cast(tumble_start(rt, interval '5' seconds) as BIGINT)
> as rowtime
> &nbsp; &nbsp; from payment_msg
> &nbsp; &nbsp; group by tumble(rt, interval '5' seconds), payPlatform
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; count_result = t_env.sql_query(query)
>
> &nbsp; &nbsp; t_env.create_temporary_view('windowed_values', count_result)
>
> &nbsp; &nbsp; query2 = """
> &nbsp; &nbsp; select platform, last_value(pay_amount), rowtime from
> windowed_values group by platform, rowtime
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; final_result = t_env.sql_query(query2)
>
> &nbsp; &nbsp; final_result.execute_insert(table_path='es_sink')
>
>
> if __name__ == '__main__':
> &nbsp; &nbsp; log_processing()
>
>
> 奇怪的不朽琴师 <[hidden email]&gt; 于2020年7月15日周三下午4:40写道：
>
> &gt; &amp;nbsp;Shuiqiang，你好：
> &gt; &amp;nbsp; &amp;nbsp;
> &gt;
> &amp;nbsp;hi，能否请求您贡献一下完整的代码的案例，我是初学者，官网的2-from_kafka_to_kafka.py这个没有窗口，我现在想要一个在此基础上有窗口的demo，尝试编了很久也未能解决。我在给这个demo加上窗口功能后总是有各种各样的问题，十分痛苦，如能帮助，感激不尽。
> &gt;
> &gt;
> &gt; 恳请所有看到此封邮件的大佬！
> &gt;
> &gt;
> &gt; 谢谢！
> &gt;
> &gt;
> &gt;
> &gt;
> &gt; ------------------&amp;nbsp;原始邮件&amp;nbsp;------------------
> &gt; 发件人:
> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; "user-zh"
> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; <
> &gt; [hidden email]&amp;gt;;
> &gt; 发送时间:&amp;nbsp;2020年7月15日(星期三) 中午11:25
> &gt; 收件人:&amp;nbsp;"user-zh"<[hidden email]&amp;gt;;
> &gt;
> &gt; 主题:&amp;nbsp;Re: pyflink1.11.0window
> &gt;
> &gt;
> &gt;
> &gt; 举个sql例子
> &gt; select platformcodetoname(payPlatform) as platform, sum(payAmount) as
> &gt; pay_amount, cast(tumble_start(rt, interval '5' seconds) as BIGINT) as
> &gt; rowtime
> &gt; from payment_msg group by tumble(rt, interval '5' seconds),
> payPlatform
> &gt; 这个query 对每5s的tumble窗口做统计。
> &gt;
> &gt; 奇怪的不朽琴师 <[hidden email]&amp;gt; 于2020年7月15日周三上午11:10写道：
> &gt;
> &gt; &amp;gt; Shuiqiang，你好：
> &gt; &amp;gt; &amp;amp;nbsp;
> &gt; &amp;amp;nbsp;我的目的是每间隔一段时间做一次汇总统计，比如每两秒做一下汇总，请问这个需求我改如何定义window？
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt;
> ------------------&amp;amp;nbsp;原始邮件&amp;amp;nbsp;------------------
> &gt; &amp;gt; 发件人:
> &gt;
> &amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
> &gt; "user-zh"
> &gt;
> &amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
> &gt; <
> &gt; &amp;gt; [hidden email]&amp;amp;gt;;
> &gt; &amp;gt; 发送时间:&amp;amp;nbsp;2020年7月15日(星期三) 上午10:51
> &gt; &amp;gt; 收件人:&amp;amp;nbsp;"user-zh"<[hidden email]
> &amp;amp;gt;;
> &gt; &amp;gt;
> &gt; &amp;gt; 主题:&amp;amp;nbsp;Re: pyflink1.11.0window
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt; 琴师你好，
> &gt; &amp;gt; 异常栈信息org.apache.flink.table.api.ValidationException: A
> tumble window
> &gt; &amp;gt; expects a size value literal.
> &gt; &amp;gt; 看起来是接下tumble window定义的代码不太正确吧
> &gt; &amp;gt;
> &gt; &amp;gt; Best,
> &gt; &amp;gt; Shuiqiang
> &gt; &amp;gt;
> &gt; &amp;gt; 奇怪的不朽琴师 <[hidden email]&amp;amp;gt; 于2020年7月15日周三
> 上午10:27写道：
> &gt; &amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 你好：
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;我按着你回复的建议改了source但是会报新的错误，请问这个是因为什么？我想调试一个window一直没有成功，请帮帮我，谢谢。
> &gt; &amp;gt; &amp;amp;gt; Traceback (most recent call last):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File "tou.py", line 71, in
> <module&amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> from_kafka_to_kafka_demo()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File "tou.py", line 21, in
> &gt; from_kafka_to_kafka_demo
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; .select("
> id,&amp;amp;amp;nbsp;
> &gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; &amp;amp;gt;
> &gt; "/usr/local/lib/python3.7/site-packages/pyflink/table/table.py", line
> &gt; &amp;gt; 907,
> &gt; &amp;gt; &amp;amp;gt; in select
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; return
> &gt; Table(self._j_table.select(fields),
> &gt; &amp;gt; self._t_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt;
> "/usr/local/lib/python3.7/site-packages/py4j/java_gateway.py",
> &gt; &amp;gt; &amp;amp;gt; line 1286, in __call__
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; answer,
> self.gateway_client,
> &gt; self.target_id,
> &gt; &amp;gt; self.name)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; &amp;amp;gt;
> &gt; "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py",
> &gt; &amp;gt; line
> &gt; &amp;gt; &amp;amp;gt; 147, in deco
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; return
> f(*a, **kw)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; "/usr/local/lib/python3.7/site-packages/py4j/protocol.py",
> &gt; &amp;gt; &amp;amp;gt; line 328, in get_return_value
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> format(target_id, ".", name),
> &gt; value)
> &gt; &amp;gt; &amp;amp;gt; py4j.protocol.Py4JJavaError: An error occurred
> while calling
> &gt; &amp;gt; o26.select.
> &gt; &amp;gt; &amp;amp;gt; :
> org.apache.flink.table.api.ValidationException: A tumble
> &gt; window
> &gt; &amp;gt; expects
> &gt; &amp;gt; &amp;amp;gt; a size value literal.
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.getAsValueLiteral(AggregateOperationFactory.java:384)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.validateAndCreateTumbleWindow(AggregateOperationFactory.java:302)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.createResolvedWindow(AggregateOperationFactory.java:236)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.OperationTreeBuilder.windowAggregate(OperationTreeBuilder.java:250)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.api.internal.TableImpl$WindowGroupedTableImpl.select(TableImpl.java:794)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.api.internal.TableImpl$WindowGroupedTableImpl.select(TableImpl.java:781)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt; java.lang.reflect.Method.invoke(Method.java:498)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; java.lang.Thread.run(Thread.java:748)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; def register_rides_source(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> source_ddl = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; """
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; create
> table source1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;type string,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;WATERMARK FOR
> &gt; time1 as time1 -
> &gt; &amp;gt; INTERVAL '2' SECOND
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.topic' = 'tp1',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; 'localhost:9092',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; 'connector.properties.zookeeper.connect' =
> &gt; &amp;gt; 'localhost:2181',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'format.type' = 'json',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'format.derive-schema' =
> &gt; 'true',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.version' =
> &gt; 'universal'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; """
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> st_env.sql_update(source_ddl)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; s_env =
> &gt; &amp;gt; &amp;amp;gt;
> StreamExecutionEnvironment.get_execution_environment()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> s_env.set_parallelism(1)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; st_env =
> &gt; StreamTableEnvironment.create(s_env)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> register_rides_source(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> register_rides_sink(st_env)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> st_env.from_path("source1")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt;
> .window(Tumble.over("2.secends").on("time1").alias("w")) \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .group_by("w") \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .select(" id,&amp;amp;amp;nbsp;
> &gt; &amp;gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .insert_into("sink1")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; st_env.execute("2-from_kafka_to_kafka")
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 代码如上
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt;
> ------------------&amp;amp;amp;nbsp;原始邮件&amp;amp;amp;nbsp;------------------
> &gt; &amp;gt; &amp;amp;gt; 发件人:
> &gt; &amp;gt;
> &gt;
> &amp;amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;
> &gt; &amp;gt; "user-zh"
> &gt; &amp;gt;
> &gt;
> &amp;amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;
> &gt; &amp;gt; <
> &gt; &amp;gt; &amp;amp;gt; [hidden email]&amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; 发送时间:&amp;amp;amp;nbsp;2020年7月10日(星期五) 上午9:17
> &gt; &amp;gt; &amp;amp;gt; 收件人:&amp;amp;amp;nbsp;"user-zh"<
> [hidden email]
> &gt; &amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 主题:&amp;amp;amp;nbsp;Re: pyflink1.11.0window
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 琴师你好，
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 你的source ddl里有指定time1为 time attribute吗？
> &gt; &amp;gt; &amp;amp;gt; create table source1(
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; id
> &gt; &amp;gt; int,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; type
> &gt; &amp;gt; string,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; WATERMARK FOR time1 as time1 -
> &gt; &amp;gt; &amp;amp;gt; INTERVAL '2' SECOND
> &gt; &amp;gt; &amp;amp;gt; ) with (...)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 奇怪的不朽琴师 <[hidden email]&amp;amp;amp;gt;
> 于2020年7月10日周五
> &gt; 上午8:43写道：
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> ------------------&amp;amp;amp;amp;nbsp;原始邮件&amp;amp;amp;amp;nbsp;------------------
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 发件人:
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;gt;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; "奇怪的不朽琴师"
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;gt;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; <
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; [hidden email]
> &amp;amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 发送时间:&amp;amp;amp;amp;nbsp;2020年7月9日(星期四) 下午5:08
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 收件人:&amp;amp;amp;amp;nbsp;"godfrey he"<
> &gt; [hidden email]
> &gt; &amp;gt; &amp;amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 主题:&amp;amp;amp;amp;nbsp;pyflink1.11.0window
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 你好：
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;我在使用pyflink1.11版本时，window开窗仍会报错
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; :
> &gt; org.apache.flink.table.api.ValidationException: A group
> &gt; &amp;gt; window
> &gt; &amp;gt; &amp;amp;gt; expects a
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; time attribute for grouping in
> a stream
> &gt; environment.
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 请问这个问题没有修复么？或者是我使用的方式不对，如果是使用不对，能提供一个正确的案例么？
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 代码如下
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 谢谢
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def from_kafka_to_kafka_demo():
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; s_env =
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; StreamExecutionEnvironment.get_execution_environment()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; s_env.set_parallelism(1)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; # use
> &gt; blink table planner
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; st_env =
> &gt; &amp;gt; StreamTableEnvironment.create(s_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; #
> &gt; register source and sink
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; register_rides_source(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; register_rides_sink(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.from_path("source1")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; .window(Tumble.over("1.secends").on("time1").alias("w")) \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .group_by("w") \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .select(" id,&amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .insert_into("sink1")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; st_env.execute("2-from_kafka_to_kafka")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def
> register_rides_source(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; source_ddl = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; create
> &gt; table source1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;type string
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.topic' = 'tp1',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; &amp;amp;gt; 'localhost:9092'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.sql_update(source_ddl)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def
> register_rides_sink(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; sink_ddl
> &gt; = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; create
> &gt; table sink1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time2 timestamp
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.topic' = 'tp3',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; &amp;amp;gt; 'localhost:9092'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.sql_update(sink_ddl)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; if __name__ == '__main__':
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; from_kafka_to_kafka_demo()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;

Evan

回复: 回复： pyflink1.11.0window

Hi，
你这个报错信息主要原因是kafkaTableSink是属于AppendStreamTableSink，而你的上一级数据源final_result2是由前面source1表group by得到的final_result与mysql维表join后而来，经过group by之后的StreamTable 已经变为RetractStreamTableSink，所以这里才会报错
请查阅有关AppendStreamTableSink、RetractStreamTableSink的资料。

关于文中出现 “     ” ，可以换一个邮箱编辑器。

希望能帮助到你

[hidden email]

发件人：奇怪的不朽琴师
发送时间： 2020-07-21 10:23
收件人： user-zh
主题：回复： pyflink1.11.0window
你好：
     他这个会自动转译空格回车啥的符号，暂时没什么好办法，很难受，大佬这边有pyflink的多表关联的demo么，万分感谢！

发送

------------------ 原始邮件 ------------------
发件人: "user-zh" <[hidden email]>;
发送时间: 2020年7月20日(星期一) 晚上8:42
收件人: "user-zh"<[hidden email]>;

主题: Re: pyflink1.11.0window

看看异常信息，是不是你的insert mode没配置对。
BTW, 你粘贴的文本带有很多"&nbsp;"，有点影响可读性。

Best，
Shuiqiang

奇怪的不朽琴师 <[hidden email]> 于2020年7月20日周一下午4:23写道：

> HI ：
> &nbsp; &nbsp; 我现在有一个新的问题，我在此基础上加了一个关联，再写入kafka时报错，如下
> Traceback (most recent call last):
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py", line
> 147, in deco
> &nbsp; &nbsp; return f(*a, **kw)
> &nbsp; File "/usr/local/lib/python3.7/site-packages/py4j/protocol.py",
> line 328, in get_return_value
> &nbsp; &nbsp; format(target_id, ".", name), value)
> py4j.protocol.Py4JJavaError: An error occurred while calling o5.sqlUpdate.
> : org.apache.flink.table.api.TableException: AppendStreamTableSink
> requires that Table has only insert changes.
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:123)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlanInternal(StreamExecSink.scala:48)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.exec.ExecNode$class.translateToPlan(ExecNode.scala:58)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.plan.nodes.physical.stream.StreamExecSink.translateToPlan(StreamExecSink.scala:48)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:60)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner$$anonfun$translateToPlan$1.apply(StreamPlanner.scala:59)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.Iterator$class.foreach(Iterator.scala:891)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractIterable.foreach(Iterable.scala:54)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> scala.collection.AbstractTraversable.map(Traversable.scala:104)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.StreamPlanner.translateToPlan(StreamPlanner.scala:59)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.planner.delegation.PlannerBase.translate(PlannerBase.scala:153)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.translate(TableEnvironmentImpl.java:685)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:495)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> java.lang.reflect.Method.invoke(Method.java:498)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79)
> &nbsp; &nbsp; &nbsp; &nbsp; at
> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
> &nbsp; &nbsp; &nbsp; &nbsp; at java.lang.Thread.run(Thread.java:748)
>
>
>
>
> During handling of the above exception, another exception occurred:
>
>
> Traceback (most recent call last):
> &nbsp; File "tou.py", line 99, in <module&gt;
> &nbsp; &nbsp; from_kafka_to_kafka_demo()
> &nbsp; File "tou.py", line 33, in from_kafka_to_kafka_demo
> &nbsp; &nbsp; st_env.sql_update("insert into flink_result select
> id,type,rowtime from final_result2")
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/table/table_environment.py",
> line 547, in sql_update
> &nbsp; &nbsp; self._j_tenv.sqlUpdate(stmt)
> &nbsp; File "/usr/local/lib/python3.7/site-packages/py4j/java_gateway.py",
> line 1286, in __call__
> &nbsp; &nbsp; answer, self.gateway_client, self.target_id, self.name)
> &nbsp; File
> "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py", line
> 154, in deco
> &nbsp; &nbsp; raise exception_mapping[exception](s.split(': ', 1)[1],
> stack_trace)
> pyflink.util.exceptions.TableException: 'AppendStreamTableSink requires
> that Table has only insert changes.'
>
>
>
>
>
> 这种应该如何实现，需求大概是一个流表（需要分组汇总）关联一个维表。
>
>
> from pyflink.datastream import StreamExecutionEnvironment,
> TimeCharacteristic
> from pyflink.table import StreamTableEnvironment, DataTypes,
> EnvironmentSettings,DataTypes, CsvTableSource, CsvTableSink
> from pyflink.table.descriptors import Schema, Kafka, Json, Rowtime
> from pyflink.table.window import Tumble&nbsp;
>
>
>
>
> def from_kafka_to_kafka_demo():
>
>
> &nbsp; &nbsp; # use blink table planner
> &nbsp; &nbsp; env = StreamExecutionEnvironment.get_execution_environment()
> &nbsp; &nbsp;
> env.set_stream_time_characteristic(TimeCharacteristic.EventTime)
> &nbsp; &nbsp; env_settings =
> EnvironmentSettings.Builder().use_blink_planner().build()
> &nbsp; &nbsp; st_env =
> StreamTableEnvironment.create(stream_execution_environment=env,environment_settings=env_settings)
>
>
> &nbsp; &nbsp; # register source and sink
> &nbsp; &nbsp; register_rides_source(st_env)
> &nbsp; &nbsp; register_rides_sink(st_env)
> &nbsp; &nbsp; register_mysql_source(st_env)
>
>
> &nbsp; &nbsp; query = """
> &nbsp; &nbsp; select&nbsp; cast(sum(t1.id) as int) as id, max(t1.type) as
> type,cast(tumble_start(t1.time1, interval '4' second) as bigint) as rowtime
> &nbsp; &nbsp; from source1 t1&nbsp;
> &nbsp; &nbsp; group by tumble(t1.time1, interval '4' second)
> &nbsp; &nbsp; """
> &nbsp; &nbsp; count_result = st_env.sql_query(query)
> &nbsp; &nbsp; st_env.create_temporary_view('final_result', count_result)
> &nbsp; &nbsp; query2 = """
> &nbsp; &nbsp; select&nbsp; t1.id,t2.type,t1.rowtime from final_result t1
> left join dim_mysql t2 on t1.type=t2.id
> &nbsp; &nbsp; """
> &nbsp; &nbsp; count_result2 = st_env.sql_query(query2)
> &nbsp; &nbsp; st_env.create_temporary_view('final_result2', count_result2)
>
>
> &nbsp; &nbsp; st_env.sql_update("insert into flink_result select
> id,type,rowtime from final_result2")
> &nbsp; &nbsp; st_env.execute("2-from_kafka_to_kafka")
> &nbsp; &nbsp;&nbsp;
>
>
>
>
> def register_rides_source(st_env):
> &nbsp; &nbsp; source_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; create table source1(
> &nbsp; &nbsp; &nbsp;id int,
> &nbsp; &nbsp; &nbsp;time2 varchar ,
> &nbsp; &nbsp; &nbsp;time1 as TO_TIMESTAMP(time2,'yyyyMMddHHmmss'),
> &nbsp; &nbsp; &nbsp;type string,
> &nbsp; &nbsp; &nbsp;WATERMARK FOR time1 as time1 - INTERVAL '2' SECOND
> &nbsp; &nbsp; &nbsp;) with (
> &nbsp; &nbsp; 'connector.type' = 'kafka',
> &nbsp; &nbsp; 'connector.topic' = 'tp1',
> &nbsp; &nbsp; 'connector.startup-mode' = 'latest-offset',
> &nbsp; &nbsp; 'connector.properties.bootstrap.servers' = 'localhost:9092',
> &nbsp; &nbsp; 'connector.properties.zookeeper.connect' = 'localhost:2181',
> &nbsp; &nbsp; 'format.type' = 'json',
> &nbsp; &nbsp; 'connector.version' = 'universal'
> &nbsp; &nbsp; &nbsp;)
> &nbsp; &nbsp; """
> &nbsp; &nbsp; st_env.sql_update(source_ddl)
>
>
> def register_mysql_source(st_env):
> &nbsp; &nbsp; source_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; CREATE TABLE dim_mysql (
> &nbsp; &nbsp; id varchar,&nbsp; --&nbsp;
> &nbsp; &nbsp; type varchar --&nbsp;
> &nbsp; &nbsp; ) WITH (
> &nbsp; &nbsp; 'connector.type' = 'jdbc',
> &nbsp; &nbsp; 'connector.url' = 'jdbc:mysql://localhost:3390/test',
> &nbsp; &nbsp; 'connector.table' = 'flink_test',
> &nbsp; &nbsp; 'connector.driver' = 'com.mysql.jdbc.Driver',
> &nbsp; &nbsp; 'connector.username' = '****',
> &nbsp; &nbsp; 'connector.password' = '*****',
> &nbsp; &nbsp; 'connector.lookup.cache.max-rows' = '5000',
> &nbsp; &nbsp; 'connector.lookup.cache.ttl' = '10min'
> &nbsp; &nbsp; )
> &nbsp; &nbsp; """&nbsp; &nbsp;&nbsp;
> &nbsp; &nbsp; st_env.sql_update(source_ddl)
>
>
> def register_rides_sink(st_env):
> &nbsp; &nbsp; sink_ddl = \
> &nbsp; &nbsp; """
> &nbsp; &nbsp; CREATE TABLE flink_result (
> &nbsp; &nbsp; id int,&nbsp; &nbsp;
> &nbsp; &nbsp; type varchar,
> &nbsp; &nbsp; rtime bigint,
> &nbsp; &nbsp; primary key(id)
> &nbsp; &nbsp; ) WITH (
> &nbsp; &nbsp; with (
> &nbsp; &nbsp; 'connector.type' = 'kafka',
> &nbsp; &nbsp; 'connector.topic' = 'tp4',
> &nbsp; &nbsp; 'connector.startup-mode' = 'latest-offset',
> &nbsp; &nbsp; 'connector.properties.bootstrap.servers' = 'localhost:9092',
> &nbsp; &nbsp; 'connector.properties.zookeeper.connect' = 'localhost:2181',
> &nbsp; &nbsp; 'format.type' = 'json',
> &nbsp; &nbsp; 'connector.version' = 'universal'
> &nbsp; &nbsp; &nbsp;)
> &nbsp; &nbsp; )
> &nbsp; &nbsp; """
> &nbsp; &nbsp; st_env.sql_update(sink_ddl)
>
>
>
>
> if __name__ == '__main__':
> &nbsp; &nbsp; from_kafka_to_kafka_demo()
>
>
>
>
>
> ------------------&nbsp;原始邮件&nbsp;------------------
> 发件人:
>                                                   "我自己的邮箱"
>                                                                   <
> [hidden email]&gt;;
> 发送时间:&nbsp;2020年7月15日(星期三) 下午5:30
> 收件人:&nbsp;"user-zh"<[hidden email]&gt;;
>
> 主题:&nbsp;回复： pyflink1.11.0window
>
>
>
> &nbsp; &nbsp; &nbsp;非常感谢！
>
>
>
>
> ------------------ 原始邮件 ------------------
> 发件人:
>                                                   "user-zh"
>                                                                     <
> [hidden email]&gt;;
> 发送时间:&nbsp;2020年7月15日(星期三) 下午5:23
> 收件人:&nbsp;"user-zh"<[hidden email]&gt;;
>
> 主题:&nbsp;Re: pyflink1.11.0window
>
>
>
> 下面这个例子从kafka读取json格式的数据，然后做窗口聚合后写入es，可以参考下代码结构，修改相应数据字段。这份代码你本地应该是不能运行的
>
> from pyflink.datastream import StreamExecutionEnvironment,
> TimeCharacteristic
> from pyflink.table import StreamTableEnvironment, DataTypes,
> EnvironmentSettings
> from pyflink.table.udf import udf
>
>
> @udf(input_types=[DataTypes.INT()], result_type=DataTypes.STRING())
> def platform_code_to_name(code):
> &nbsp; &nbsp; return "mobile" if code == 0 else "pc"
>
>
> def log_processing():
> &nbsp; &nbsp; env = StreamExecutionEnvironment.get_execution_environment()
> &nbsp; &nbsp;
> env.set_stream_time_characteristic(TimeCharacteristic.EventTime)
> &nbsp; &nbsp; env_settings =
> EnvironmentSettings.Builder().use_blink_planner().build()
> &nbsp; &nbsp; t_env =
> StreamTableEnvironment.create(stream_execution_environment=env,
> environment_settings=env_settings)
>
> &nbsp; &nbsp; source_ddl = """
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; CREATE TABLE
> payment_msg(
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; createTime VARCHAR,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; rt as TO_TIMESTAMP(createTime),
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; orderId BIGINT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; payAmount DOUBLE,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; payPlatform INT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; paySource INT,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; WATERMARK FOR rt as rt - INTERVAL '2' SECOND
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; ) WITH (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.type' = 'kafka',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.version' = 'universal',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.topic' = 'payment_msg_2',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.properties.bootstrap.servers' = '0.0.0.0:9092',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; '
> connector.properties.group.id' = 'test_3',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'connector.startup-mode' = 'latest-offset',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
> 'format.type' = 'json'
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; )
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; """
> &nbsp; &nbsp; t_env.sql_update(source_ddl)
>
> &nbsp; &nbsp; es_sink_ddl = """
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; CREATE TABLE
> es_sink (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; platform
> VARCHAR,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; pay_amount
> DOUBLE,
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; rowtime
> TIMESTAMP(3)
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; ) with (
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.type' = 'elasticsearch',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.version' = '7',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.hosts' = '<a href="http://localhost:9200'">http://localhost:9200',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.index' = 'platform_pay_amount_1',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.document-type' = 'payment',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'update-mode' = 'upsert',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.flush-on-checkpoint' = 'true',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.key-delimiter' = '$',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.key-null-literal' = 'n/a',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.max-size' = '42mb',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.max-actions' = '32',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.interval' = '1000',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'connector.bulk-flush.backoff.delay' = '1000',
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; 'format.type' = 'json'
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; )
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; t_env.sql_update(es_sink_ddl)
>
> &nbsp; &nbsp; t_env.register_function('platformcodetoname',
> platform_code_to_name)
>
> &nbsp; &nbsp; query = """
> &nbsp; &nbsp; select platformcodetoname(payPlatform) as platform,
> sum(payAmount)
> as pay_amount, cast(tumble_start(rt, interval '5' seconds) as BIGINT)
> as rowtime
> &nbsp; &nbsp; from payment_msg
> &nbsp; &nbsp; group by tumble(rt, interval '5' seconds), payPlatform
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; count_result = t_env.sql_query(query)
>
> &nbsp; &nbsp; t_env.create_temporary_view('windowed_values', count_result)
>
> &nbsp; &nbsp; query2 = """
> &nbsp; &nbsp; select platform, last_value(pay_amount), rowtime from
> windowed_values group by platform, rowtime
> &nbsp; &nbsp; """
>
> &nbsp; &nbsp; final_result = t_env.sql_query(query2)
>
> &nbsp; &nbsp; final_result.execute_insert(table_path='es_sink')
>
>
> if __name__ == '__main__':
> &nbsp; &nbsp; log_processing()
>
>
> 奇怪的不朽琴师 <[hidden email]&gt; 于2020年7月15日周三下午4:40写道：
>
> &gt; &amp;nbsp;Shuiqiang，你好：
> &gt; &amp;nbsp; &amp;nbsp;
> &gt;
> &amp;nbsp;hi，能否请求您贡献一下完整的代码的案例，我是初学者，官网的2-from_kafka_to_kafka.py这个没有窗口，我现在想要一个在此基础上有窗口的demo，尝试编了很久也未能解决。我在给这个demo加上窗口功能后总是有各种各样的问题，十分痛苦，如能帮助，感激不尽。
> &gt;
> &gt;
> &gt; 恳请所有看到此封邮件的大佬！
> &gt;
> &gt;
> &gt; 谢谢！
> &gt;
> &gt;
> &gt;
> &gt;
> &gt; ------------------&amp;nbsp;原始邮件&amp;nbsp;------------------
> &gt; 发件人:
> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; "user-zh"
> &gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> &nbsp; <
> &gt; [hidden email]&amp;gt;;
> &gt; 发送时间:&amp;nbsp;2020年7月15日(星期三) 中午11:25
> &gt; 收件人:&amp;nbsp;"user-zh"<[hidden email]&amp;gt;;
> &gt;
> &gt; 主题:&amp;nbsp;Re: pyflink1.11.0window
> &gt;
> &gt;
> &gt;
> &gt; 举个sql例子
> &gt; select platformcodetoname(payPlatform) as platform, sum(payAmount) as
> &gt; pay_amount, cast(tumble_start(rt, interval '5' seconds) as BIGINT) as
> &gt; rowtime
> &gt; from payment_msg group by tumble(rt, interval '5' seconds),
> payPlatform
> &gt; 这个query 对每5s的tumble窗口做统计。
> &gt;
> &gt; 奇怪的不朽琴师 <[hidden email]&amp;gt; 于2020年7月15日周三上午11:10写道：
> &gt;
> &gt; &amp;gt; Shuiqiang，你好：
> &gt; &amp;gt; &amp;amp;nbsp;
> &gt; &amp;amp;nbsp;我的目的是每间隔一段时间做一次汇总统计，比如每两秒做一下汇总，请问这个需求我改如何定义window？
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt;
> ------------------&amp;amp;nbsp;原始邮件&amp;amp;nbsp;------------------
> &gt; &amp;gt; 发件人:
> &gt;
> &amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
> &gt; "user-zh"
> &gt;
> &amp;gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
> &gt; <
> &gt; &amp;gt; [hidden email]&amp;amp;gt;;
> &gt; &amp;gt; 发送时间:&amp;amp;nbsp;2020年7月15日(星期三) 上午10:51
> &gt; &amp;gt; 收件人:&amp;amp;nbsp;"user-zh"<[hidden email]
> &amp;amp;gt;;
> &gt; &amp;gt;
> &gt; &amp;gt; 主题:&amp;amp;nbsp;Re: pyflink1.11.0window
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt;
> &gt; &amp;gt; 琴师你好，
> &gt; &amp;gt; 异常栈信息org.apache.flink.table.api.ValidationException: A
> tumble window
> &gt; &amp;gt; expects a size value literal.
> &gt; &amp;gt; 看起来是接下tumble window定义的代码不太正确吧
> &gt; &amp;gt;
> &gt; &amp;gt; Best,
> &gt; &amp;gt; Shuiqiang
> &gt; &amp;gt;
> &gt; &amp;gt; 奇怪的不朽琴师 <[hidden email]&amp;amp;gt; 于2020年7月15日周三
> 上午10:27写道：
> &gt; &amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 你好：
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;我按着你回复的建议改了source但是会报新的错误，请问这个是因为什么？我想调试一个window一直没有成功，请帮帮我，谢谢。
> &gt; &amp;gt; &amp;amp;gt; Traceback (most recent call last):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File "tou.py", line 71, in
> <module&amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> from_kafka_to_kafka_demo()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File "tou.py", line 21, in
> &gt; from_kafka_to_kafka_demo
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; .select("
> id,&amp;amp;amp;nbsp;
> &gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; &amp;amp;gt;
> &gt; "/usr/local/lib/python3.7/site-packages/pyflink/table/table.py", line
> &gt; &amp;gt; 907,
> &gt; &amp;gt; &amp;amp;gt; in select
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; return
> &gt; Table(self._j_table.select(fields),
> &gt; &amp;gt; self._t_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt;
> "/usr/local/lib/python3.7/site-packages/py4j/java_gateway.py",
> &gt; &amp;gt; &amp;amp;gt; line 1286, in __call__
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; answer,
> self.gateway_client,
> &gt; self.target_id,
> &gt; &amp;gt; self.name)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; &amp;amp;gt;
> &gt; "/usr/local/lib/python3.7/site-packages/pyflink/util/exceptions.py",
> &gt; &amp;gt; line
> &gt; &amp;gt; &amp;amp;gt; 147, in deco
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; return
> f(*a, **kw)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; File
> &gt; &amp;gt; "/usr/local/lib/python3.7/site-packages/py4j/protocol.py",
> &gt; &amp;gt; &amp;amp;gt; line 328, in get_return_value
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> format(target_id, ".", name),
> &gt; value)
> &gt; &amp;gt; &amp;amp;gt; py4j.protocol.Py4JJavaError: An error occurred
> while calling
> &gt; &amp;gt; o26.select.
> &gt; &amp;gt; &amp;amp;gt; :
> org.apache.flink.table.api.ValidationException: A tumble
> &gt; window
> &gt; &amp;gt; expects
> &gt; &amp;gt; &amp;amp;gt; a size value literal.
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.getAsValueLiteral(AggregateOperationFactory.java:384)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.validateAndCreateTumbleWindow(AggregateOperationFactory.java:302)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.AggregateOperationFactory.createResolvedWindow(AggregateOperationFactory.java:236)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.operations.utils.OperationTreeBuilder.windowAggregate(OperationTreeBuilder.java:250)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.api.internal.TableImpl$WindowGroupedTableImpl.select(TableImpl.java:794)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.table.api.internal.TableImpl$WindowGroupedTableImpl.select(TableImpl.java:781)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt; java.lang.reflect.Method.invoke(Method.java:498)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; at
> &gt; &amp;gt; java.lang.Thread.run(Thread.java:748)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; def register_rides_source(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> source_ddl = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; """
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; create
> table source1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;type string,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;WATERMARK FOR
> &gt; time1 as time1 -
> &gt; &amp;gt; INTERVAL '2' SECOND
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.topic' = 'tp1',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; 'localhost:9092',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; 'connector.properties.zookeeper.connect' =
> &gt; &amp;gt; 'localhost:2181',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'format.type' = 'json',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'format.derive-schema' =
> &gt; 'true',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> 'connector.version' =
> &gt; 'universal'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; """
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> st_env.sql_update(source_ddl)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; s_env =
> &gt; &amp;gt; &amp;amp;gt;
> StreamExecutionEnvironment.get_execution_environment()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> s_env.set_parallelism(1)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp; st_env =
> &gt; StreamTableEnvironment.create(s_env)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> register_rides_source(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> register_rides_sink(st_env)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> st_env.from_path("source1")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt;
> .window(Tumble.over("2.secends").on("time1").alias("w")) \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .group_by("w") \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .select(" id,&amp;amp;amp;nbsp;
> &gt; &amp;gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; .insert_into("sink1")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;nbsp; &amp;amp;amp;nbsp;
> &gt; st_env.execute("2-from_kafka_to_kafka")
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 代码如上
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt;
> ------------------&amp;amp;amp;nbsp;原始邮件&amp;amp;amp;nbsp;------------------
> &gt; &amp;gt; &amp;amp;gt; 发件人:
> &gt; &amp;gt;
> &gt;
> &amp;amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;
> &gt; &amp;gt; "user-zh"
> &gt; &amp;gt;
> &gt;
> &amp;amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;&amp;amp;nbsp;
> &gt; &amp;gt; <
> &gt; &amp;gt; &amp;amp;gt; [hidden email]&amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; 发送时间:&amp;amp;amp;nbsp;2020年7月10日(星期五) 上午9:17
> &gt; &amp;gt; &amp;amp;gt; 收件人:&amp;amp;amp;nbsp;"user-zh"<
> [hidden email]
> &gt; &amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 主题:&amp;amp;amp;nbsp;Re: pyflink1.11.0window
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 琴师你好，
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 你的source ddl里有指定time1为 time attribute吗？
> &gt; &amp;gt; &amp;amp;gt; create table source1(
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; id
> &gt; &amp;gt; int,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; type
> &gt; &amp;gt; string,
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; WATERMARK FOR time1 as time1 -
> &gt; &amp;gt; &amp;amp;gt; INTERVAL '2' SECOND
> &gt; &amp;gt; &amp;amp;gt; ) with (...)
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; 奇怪的不朽琴师 <[hidden email]&amp;amp;amp;gt;
> 于2020年7月10日周五
> &gt; 上午8:43写道：
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> ------------------&amp;amp;amp;amp;nbsp;原始邮件&amp;amp;amp;amp;nbsp;------------------
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 发件人:
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;gt;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; "奇怪的不朽琴师"
> &gt; &amp;gt; &amp;amp;gt;
> &gt; &amp;gt;
> &gt;
> &amp;amp;amp;gt;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;&amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; <
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; [hidden email]
> &amp;amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 发送时间:&amp;amp;amp;amp;nbsp;2020年7月9日(星期四) 下午5:08
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 收件人:&amp;amp;amp;amp;nbsp;"godfrey he"<
> &gt; [hidden email]
> &gt; &amp;gt; &amp;amp;amp;amp;gt;;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 主题:&amp;amp;amp;amp;nbsp;pyflink1.11.0window
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 你好：
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;我在使用pyflink1.11版本时，window开窗仍会报错
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; :
> &gt; org.apache.flink.table.api.ValidationException: A group
> &gt; &amp;gt; window
> &gt; &amp;gt; &amp;amp;gt; expects a
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; time attribute for grouping in
> a stream
> &gt; environment.
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> 请问这个问题没有修复么？或者是我使用的方式不对，如果是使用不对，能提供一个正确的案例么？
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 代码如下
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; 谢谢
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def from_kafka_to_kafka_demo():
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; s_env =
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; StreamExecutionEnvironment.get_execution_environment()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; s_env.set_parallelism(1)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; # use
> &gt; blink table planner
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; st_env =
> &gt; &amp;gt; StreamTableEnvironment.create(s_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; #
> &gt; register source and sink
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; register_rides_source(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; register_rides_sink(st_env)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.from_path("source1")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; .window(Tumble.over("1.secends").on("time1").alias("w")) \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .group_by("w") \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .select(" id,&amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; time1 , time1 ")\
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; .insert_into("sink1")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; st_env.execute("2-from_kafka_to_kafka")
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def
> register_rides_source(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; source_ddl = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; create
> &gt; table source1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;type string
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.topic' = 'tp1',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; &amp;amp;gt; 'localhost:9092'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.sql_update(source_ddl)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; def
> register_rides_sink(st_env):
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; sink_ddl
> &gt; = \
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; create
> &gt; table sink1(
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp; &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; id int,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time1 timestamp,
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;time2 timestamp
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;) with (
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.type' = 'kafka',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'update-mode' = 'append',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; 'connector.topic' = 'tp3',
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;gt; 'connector.properties.bootstrap.servers' =
> &gt; &amp;gt; &amp;amp;gt; 'localhost:9092'
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; &amp;amp;amp;amp;nbsp;)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp; '''
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; st_env.sql_update(sink_ddl)
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; if __name__ == '__main__':
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;
> &gt; from_kafka_to_kafka_demo()
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt;
> &gt; &amp;gt; &amp;amp;gt; &amp;amp;amp;gt; &amp;amp;amp;amp;nbsp;
> &amp;amp;amp;amp;nbsp;