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Posted to user-zh@flink.apache.org by 王超 <19...@gmail.com> on 2020/06/19 05:31:57 UTC
Flink SQL 1.10.0窗口计算结果无法sink
各位大神求帮忙看一下。
Flink 版本：1.10.0
Planner：blink
我在使用Flink SQL的时候遇到了一个问题，能否帮忙看一下，我尝试在寻找了解决方法，但是没有起作用。
比如我发现类似的问题
https://www.mail-archive.com/user-zh@flink.apache.org/msg03916.html
中描述的问题，根据这个mail中的解决方法我设置了timezone，但是问题没有被解决。
Flink Table Env配置
*StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();*
* env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);*
* env.setParallelism(1);*
*EnvironmentSettings envSetting =
EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
*
*StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
envSetting);*
*tableEnv.getConfig().setLocalTimeZone(ZoneId.of("Asia/Shanghai")); *
我这个job应用中定义了两个table，分别为source table “sqlDdlAnaTable”
*String sqlDdlAnaTable = "CREATE TABLE ana_Source(type INT, datatime
BIGINT, list ARRAY <ROW(id STRING, v FLOAT, q INTEGER)>, ts AS
TO_TIMESTAMP(FROM_UNIXTIME(datatime)), WATERMARK FOR ts AS ts - INTERVAL
'5' SECOND)" +*
* " WITH (" +*
* "'connector.type' = 'pravega'," +*
* "'connector.version' = '1'," +*
* "'connector.connection-config.controller-uri'=
'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
* "'connector.connection-config.default-scope' = 'Demo'," +*
* "'connector.reader.stream-info.0.stream' = 'test'," +*
* "'format.type' = 'json'," +*
* "'format.fail-on-missing-field' = 'false', " +*
* "'update-mode' = 'append')";*
和sink table " sqlDdlSinkTable ".
* String sqlDdlSinkTable = "CREATE TABLE tb_sink" +*
* "(id STRING, " +*
* "wStart TIMESTAMP(3) , " +*
* "v FLOAT)" +*
* " WITH (" +*
* "'connector.type' = 'pravega'," +*
* "'connector.version' = '1'," +*
* "'connector.connection-config.controller-uri'=
'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
* "'connector.connection-config.default-scope' = 'Demo'," +*
* "'connector.writer.stream' = 'result'," +*
* "'connector.writer.routingkey-field-name' = 'id'," +*
* "'connector.writer.mode' = 'atleast_once'," +*
* "'format.type' = 'json'," +*
* "'update-mode' = 'append')";*
在数据处理逻辑比较简单，计算10s tumble window的vaule的平均。
我一开始直接打印结果能够明确看到10s中输出一次计算结果，watermark也正常移动。
*String sqlAna = "SELECT ts, id, v " +*
* "FROM tb_JsonRecord " +*
* "WHERE q=1 AND type=1";*
* Table tableAnaRecord = tableEnv.sqlQuery(sqlAna);*
* tableEnv.registerTable("tb_AnaRecord", tableAnaRecord);*
*tableEnv.toAppendStream(tableAnaRecord, Row.class).print()*
但是我尝试将结果insert到sink table中发现，就没有任何结果被写入。
*String sqlAnaAvg = "INSERT INTO tb_sink(id, wStart, v) " +*
* "SELECT id, " +*
* "TUMBLE_START(ts, INTERVAL '10' SECOND) as wStart, " +*
* "AVG(v) FROM tb_AnaRecord " +*
* "GROUP BY TUMBLE(ts, INTERVAL '10' SECOND), id"; *
* tableEnv.sqlUpdate(sqlAnaAvg);*
提前感谢！
BR//Chao
Re: Flink SQL 1.10.0窗口计算结果无法sink
Posted by Jark Wu <im...@gmail.com>.
可以替换成其他 sink 试一下，比如 kafka，验证下是不是 sink 的问题。
Btw，1.11 里面可以非常方便地创建一个测试 sink，比如
CREATE TABLE print_table WITH ('connector' = 'print')
LIKE tb_sink (EXCLUDING ALL)
Best,
Jark
On Sat, 20 Jun 2020 at 15:51, Benchao Li <li...@apache.org> wrote:
> Hi,
>
> 根据你的描述，应该是sink这里有问题的可能性比较大。因为正常的query可以输出结果，但是insert到sink就看不到输出。
> 你可以看下你的job的metrics，每个operator的输入输出，看下window operator是否有输出。
> 此外，也可以看下这个sink的实现，是否有攒batch的一些逻辑，比如要打到多少条数据才会输出等。
>
> 王超 <19...@gmail.com> 于2020年6月20日周六 下午1:18写道：
>
> > 除了pravega connector之外的有没有什么地方有问题呢？
> >
> > On Fri, Jun 19, 2020 at 18:43 Leonard Xu <xb...@gmail.com> wrote:
> >
> > > Hi,
> > > pravega connector[1] 应该不是社区提供的，之前没看过这个connector的代码,
> > > 看你的描述，可以检查下写入时是否有一些参数需要设置。
> > >
> > >
> > > 祝好，
> > > Leonard Xu
> > > [1] https://github.com/pravega/flink-connectors <
> > > https://github.com/pravega/flink-connectors>
> > >
> > >
> > > > 在 2020年6月19日，13:31，王超 <19...@gmail.com> 写道：
> > > >
> > > > 各位大神求帮忙看一下。
> > > >
> > > > Flink 版本：1.10.0
> > > > Planner：blink
> > > >
> > > > 我在使用Flink SQL的时候遇到了一个问题，能否帮忙看一下，我尝试在寻找了解决方法，但是没有起作用。
> > > > 比如我发现类似的问题
> > > > https://www.mail-archive.com/user-zh@flink.apache.org/msg03916.html
> > > > 中描述的问题，根据这个mail中的解决方法我设置了timezone，但是问题没有被解决。
> > > >
> > > >
> > > > Flink Table Env配置
> > > > *StreamExecutionEnvironment env =
> > > > StreamExecutionEnvironment.getExecutionEnvironment();*
> > > > *
> > env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);*
> > > > * env.setParallelism(1);*
> > > > *EnvironmentSettings envSetting =
> > > >
> > >
> >
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> > > > *
> > > > *StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> > > > envSetting);*
> > > > *tableEnv.getConfig().setLocalTimeZone(ZoneId.of("Asia/Shanghai"));
> *
> > > >
> > > >
> > > > 我这个job应用中定义了两个table，分别为source table “sqlDdlAnaTable”
> > > >
> > > > *String sqlDdlAnaTable = "CREATE TABLE ana_Source(type INT, datatime
> > > > BIGINT, list ARRAY <ROW(id STRING, v FLOAT, q INTEGER)>, ts AS
> > > > TO_TIMESTAMP(FROM_UNIXTIME(datatime)), WATERMARK FOR ts AS ts -
> > INTERVAL
> > > > '5' SECOND)" +*
> > > > * " WITH (" +*
> > > > * "'connector.type' = 'pravega'," +*
> > > > * "'connector.version' = '1'," +*
> > > > * "'connector.connection-config.controller-uri'=
> > > > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > > > * "'connector.connection-config.default-scope' =
> > 'Demo',"
> > > +*
> > > > * "'connector.reader.stream-info.0.stream' = 'test',"
> +*
> > > > * "'format.type' = 'json'," +*
> > > > * "'format.fail-on-missing-field' = 'false', " +*
> > > > * "'update-mode' = 'append')";*
> > > >
> > > > 和sink table " sqlDdlSinkTable ".
> > > >
> > > > * String sqlDdlSinkTable = "CREATE TABLE tb_sink" +*
> > > > * "(id STRING, " +*
> > > > * "wStart TIMESTAMP(3) , " +*
> > > > * "v FLOAT)" +*
> > > > * " WITH (" +*
> > > > * "'connector.type' = 'pravega'," +*
> > > > * "'connector.version' = '1'," +*
> > > > * "'connector.connection-config.controller-uri'=
> > > > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > > > * "'connector.connection-config.default-scope' =
> > 'Demo',"
> > > +*
> > > > * "'connector.writer.stream' = 'result'," +*
> > > > * "'connector.writer.routingkey-field-name' = 'id',"
> +*
> > > > * "'connector.writer.mode' = 'atleast_once'," +*
> > > > * "'format.type' = 'json'," +*
> > > > * "'update-mode' = 'append')";*
> > > >
> > > > 在数据处理逻辑比较简单，计算10s tumble window的vaule的平均。
> > > > 我一开始直接打印结果能够明确看到10s中输出一次计算结果，watermark也正常移动。
> > > > *String sqlAna = "SELECT ts, id, v " +*
> > > > * "FROM tb_JsonRecord " +*
> > > > * "WHERE q=1 AND type=1";*
> > > > * Table tableAnaRecord = tableEnv.sqlQuery(sqlAna);*
> > > > * tableEnv.registerTable("tb_AnaRecord", tableAnaRecord);*
> > > >
> > > > *tableEnv.toAppendStream(tableAnaRecord, Row.class).print()*
> > > >
> > > >
> > > >
> > > > 但是我尝试将结果insert到sink table中发现，就没有任何结果被写入。
> > > > *String sqlAnaAvg = "INSERT INTO tb_sink(id, wStart, v) " +*
> > > > * "SELECT id, " +*
> > > > * "TUMBLE_START(ts, INTERVAL '10' SECOND) as wStart, " +*
> > > > * "AVG(v) FROM tb_AnaRecord " +*
> > > > * "GROUP BY TUMBLE(ts, INTERVAL '10' SECOND), id"; *
> > > > * tableEnv.sqlUpdate(sqlAnaAvg);*
> > > >
> > > >
> > > > 提前感谢！
> > > >
> > > > BR//Chao
> > >
> > > --
> > 发自移动版 Gmail
> >
>
>
> --
>
> Best,
> Benchao Li
>
Re: Flink SQL 1.10.0窗口计算结果无法sink
Posted by Benchao Li <li...@apache.org>.
Hi,
根据你的描述，应该是sink这里有问题的可能性比较大。因为正常的query可以输出结果，但是insert到sink就看不到输出。
你可以看下你的job的metrics，每个operator的输入输出，看下window operator是否有输出。
此外，也可以看下这个sink的实现，是否有攒batch的一些逻辑，比如要打到多少条数据才会输出等。
王超 <19...@gmail.com> 于2020年6月20日周六 下午1:18写道：
> 除了pravega connector之外的有没有什么地方有问题呢？
>
> On Fri, Jun 19, 2020 at 18:43 Leonard Xu <xb...@gmail.com> wrote:
>
> > Hi,
> > pravega connector[1] 应该不是社区提供的，之前没看过这个connector的代码,
> > 看你的描述，可以检查下写入时是否有一些参数需要设置。
> >
> >
> > 祝好，
> > Leonard Xu
> > [1] https://github.com/pravega/flink-connectors <
> > https://github.com/pravega/flink-connectors>
> >
> >
> > > 在 2020年6月19日，13:31，王超 <19...@gmail.com> 写道：
> > >
> > > 各位大神求帮忙看一下。
> > >
> > > Flink 版本：1.10.0
> > > Planner：blink
> > >
> > > 我在使用Flink SQL的时候遇到了一个问题，能否帮忙看一下，我尝试在寻找了解决方法，但是没有起作用。
> > > 比如我发现类似的问题
> > > https://www.mail-archive.com/user-zh@flink.apache.org/msg03916.html
> > > 中描述的问题，根据这个mail中的解决方法我设置了timezone，但是问题没有被解决。
> > >
> > >
> > > Flink Table Env配置
> > > *StreamExecutionEnvironment env =
> > > StreamExecutionEnvironment.getExecutionEnvironment();*
> > > *
> env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);*
> > > * env.setParallelism(1);*
> > > *EnvironmentSettings envSetting =
> > >
> >
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> > > *
> > > *StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> > > envSetting);*
> > > *tableEnv.getConfig().setLocalTimeZone(ZoneId.of("Asia/Shanghai")); *
> > >
> > >
> > > 我这个job应用中定义了两个table，分别为source table “sqlDdlAnaTable”
> > >
> > > *String sqlDdlAnaTable = "CREATE TABLE ana_Source(type INT, datatime
> > > BIGINT, list ARRAY <ROW(id STRING, v FLOAT, q INTEGER)>, ts AS
> > > TO_TIMESTAMP(FROM_UNIXTIME(datatime)), WATERMARK FOR ts AS ts -
> INTERVAL
> > > '5' SECOND)" +*
> > > * " WITH (" +*
> > > * "'connector.type' = 'pravega'," +*
> > > * "'connector.version' = '1'," +*
> > > * "'connector.connection-config.controller-uri'=
> > > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > > * "'connector.connection-config.default-scope' =
> 'Demo',"
> > +*
> > > * "'connector.reader.stream-info.0.stream' = 'test'," +*
> > > * "'format.type' = 'json'," +*
> > > * "'format.fail-on-missing-field' = 'false', " +*
> > > * "'update-mode' = 'append')";*
> > >
> > > 和sink table " sqlDdlSinkTable ".
> > >
> > > * String sqlDdlSinkTable = "CREATE TABLE tb_sink" +*
> > > * "(id STRING, " +*
> > > * "wStart TIMESTAMP(3) , " +*
> > > * "v FLOAT)" +*
> > > * " WITH (" +*
> > > * "'connector.type' = 'pravega'," +*
> > > * "'connector.version' = '1'," +*
> > > * "'connector.connection-config.controller-uri'=
> > > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > > * "'connector.connection-config.default-scope' =
> 'Demo',"
> > +*
> > > * "'connector.writer.stream' = 'result'," +*
> > > * "'connector.writer.routingkey-field-name' = 'id'," +*
> > > * "'connector.writer.mode' = 'atleast_once'," +*
> > > * "'format.type' = 'json'," +*
> > > * "'update-mode' = 'append')";*
> > >
> > > 在数据处理逻辑比较简单，计算10s tumble window的vaule的平均。
> > > 我一开始直接打印结果能够明确看到10s中输出一次计算结果，watermark也正常移动。
> > > *String sqlAna = "SELECT ts, id, v " +*
> > > * "FROM tb_JsonRecord " +*
> > > * "WHERE q=1 AND type=1";*
> > > * Table tableAnaRecord = tableEnv.sqlQuery(sqlAna);*
> > > * tableEnv.registerTable("tb_AnaRecord", tableAnaRecord);*
> > >
> > > *tableEnv.toAppendStream(tableAnaRecord, Row.class).print()*
> > >
> > >
> > >
> > > 但是我尝试将结果insert到sink table中发现，就没有任何结果被写入。
> > > *String sqlAnaAvg = "INSERT INTO tb_sink(id, wStart, v) " +*
> > > * "SELECT id, " +*
> > > * "TUMBLE_START(ts, INTERVAL '10' SECOND) as wStart, " +*
> > > * "AVG(v) FROM tb_AnaRecord " +*
> > > * "GROUP BY TUMBLE(ts, INTERVAL '10' SECOND), id"; *
> > > * tableEnv.sqlUpdate(sqlAnaAvg);*
> > >
> > >
> > > 提前感谢！
> > >
> > > BR//Chao
> >
> > --
> 发自移动版 Gmail
>
--
Best,
Benchao Li
Re: Flink SQL 1.10.0窗口计算结果无法sink
Posted by 王超 <19...@gmail.com>.
除了pravega connector之外的有没有什么地方有问题呢？
On Fri, Jun 19, 2020 at 18:43 Leonard Xu <xb...@gmail.com> wrote:
> Hi,
> pravega connector[1] 应该不是社区提供的，之前没看过这个connector的代码,
> 看你的描述，可以检查下写入时是否有一些参数需要设置。
>
>
> 祝好，
> Leonard Xu
> [1] https://github.com/pravega/flink-connectors <
> https://github.com/pravega/flink-connectors>
>
>
> > 在 2020年6月19日，13:31，王超 <19...@gmail.com> 写道：
> >
> > 各位大神求帮忙看一下。
> >
> > Flink 版本：1.10.0
> > Planner：blink
> >
> > 我在使用Flink SQL的时候遇到了一个问题，能否帮忙看一下，我尝试在寻找了解决方法，但是没有起作用。
> > 比如我发现类似的问题
> > https://www.mail-archive.com/user-zh@flink.apache.org/msg03916.html
> > 中描述的问题，根据这个mail中的解决方法我设置了timezone，但是问题没有被解决。
> >
> >
> > Flink Table Env配置
> > *StreamExecutionEnvironment env =
> > StreamExecutionEnvironment.getExecutionEnvironment();*
> > * env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);*
> > * env.setParallelism(1);*
> > *EnvironmentSettings envSetting =
> >
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> > *
> > *StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> > envSetting);*
> > *tableEnv.getConfig().setLocalTimeZone(ZoneId.of("Asia/Shanghai")); *
> >
> >
> > 我这个job应用中定义了两个table，分别为source table “sqlDdlAnaTable”
> >
> > *String sqlDdlAnaTable = "CREATE TABLE ana_Source(type INT, datatime
> > BIGINT, list ARRAY <ROW(id STRING, v FLOAT, q INTEGER)>, ts AS
> > TO_TIMESTAMP(FROM_UNIXTIME(datatime)), WATERMARK FOR ts AS ts - INTERVAL
> > '5' SECOND)" +*
> > * " WITH (" +*
> > * "'connector.type' = 'pravega'," +*
> > * "'connector.version' = '1'," +*
> > * "'connector.connection-config.controller-uri'=
> > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > * "'connector.connection-config.default-scope' = 'Demo',"
> +*
> > * "'connector.reader.stream-info.0.stream' = 'test'," +*
> > * "'format.type' = 'json'," +*
> > * "'format.fail-on-missing-field' = 'false', " +*
> > * "'update-mode' = 'append')";*
> >
> > 和sink table " sqlDdlSinkTable ".
> >
> > * String sqlDdlSinkTable = "CREATE TABLE tb_sink" +*
> > * "(id STRING, " +*
> > * "wStart TIMESTAMP(3) , " +*
> > * "v FLOAT)" +*
> > * " WITH (" +*
> > * "'connector.type' = 'pravega'," +*
> > * "'connector.version' = '1'," +*
> > * "'connector.connection-config.controller-uri'=
> > 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> > * "'connector.connection-config.default-scope' = 'Demo',"
> +*
> > * "'connector.writer.stream' = 'result'," +*
> > * "'connector.writer.routingkey-field-name' = 'id'," +*
> > * "'connector.writer.mode' = 'atleast_once'," +*
> > * "'format.type' = 'json'," +*
> > * "'update-mode' = 'append')";*
> >
> > 在数据处理逻辑比较简单，计算10s tumble window的vaule的平均。
> > 我一开始直接打印结果能够明确看到10s中输出一次计算结果，watermark也正常移动。
> > *String sqlAna = "SELECT ts, id, v " +*
> > * "FROM tb_JsonRecord " +*
> > * "WHERE q=1 AND type=1";*
> > * Table tableAnaRecord = tableEnv.sqlQuery(sqlAna);*
> > * tableEnv.registerTable("tb_AnaRecord", tableAnaRecord);*
> >
> > *tableEnv.toAppendStream(tableAnaRecord, Row.class).print()*
> >
> >
> >
> > 但是我尝试将结果insert到sink table中发现，就没有任何结果被写入。
> > *String sqlAnaAvg = "INSERT INTO tb_sink(id, wStart, v) " +*
> > * "SELECT id, " +*
> > * "TUMBLE_START(ts, INTERVAL '10' SECOND) as wStart, " +*
> > * "AVG(v) FROM tb_AnaRecord " +*
> > * "GROUP BY TUMBLE(ts, INTERVAL '10' SECOND), id"; *
> > * tableEnv.sqlUpdate(sqlAnaAvg);*
> >
> >
> > 提前感谢！
> >
> > BR//Chao
>
> --
发自移动版 Gmail
Re: Flink SQL 1.10.0窗口计算结果无法sink
Posted by Leonard Xu <xb...@gmail.com>.
Hi,
pravega connector[1] 应该不是社区提供的，之前没看过这个connector的代码, 看你的描述，可以检查下写入时是否有一些参数需要设置。
祝好，
Leonard Xu
[1] https://github.com/pravega/flink-connectors <https://github.com/pravega/flink-connectors>
> 在 2020年6月19日，13:31，王超 <19...@gmail.com> 写道：
>
> 各位大神求帮忙看一下。
>
> Flink 版本：1.10.0
> Planner：blink
>
> 我在使用Flink SQL的时候遇到了一个问题，能否帮忙看一下，我尝试在寻找了解决方法，但是没有起作用。
> 比如我发现类似的问题
> https://www.mail-archive.com/user-zh@flink.apache.org/msg03916.html
> 中描述的问题，根据这个mail中的解决方法我设置了timezone，但是问题没有被解决。
>
>
> Flink Table Env配置
> *StreamExecutionEnvironment env =
> StreamExecutionEnvironment.getExecutionEnvironment();*
> * env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);*
> * env.setParallelism(1);*
> *EnvironmentSettings envSetting =
> EnvironmentSettings.newInstance().useBlinkPlanner().inStreamingMode().build();
> *
> *StreamTableEnvironment tableEnv = StreamTableEnvironment.create(env,
> envSetting);*
> *tableEnv.getConfig().setLocalTimeZone(ZoneId.of("Asia/Shanghai")); *
>
>
> 我这个job应用中定义了两个table，分别为source table “sqlDdlAnaTable”
>
> *String sqlDdlAnaTable = "CREATE TABLE ana_Source(type INT, datatime
> BIGINT, list ARRAY <ROW(id STRING, v FLOAT, q INTEGER)>, ts AS
> TO_TIMESTAMP(FROM_UNIXTIME(datatime)), WATERMARK FOR ts AS ts - INTERVAL
> '5' SECOND)" +*
> * " WITH (" +*
> * "'connector.type' = 'pravega'," +*
> * "'connector.version' = '1'," +*
> * "'connector.connection-config.controller-uri'=
> 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> * "'connector.connection-config.default-scope' = 'Demo'," +*
> * "'connector.reader.stream-info.0.stream' = 'test'," +*
> * "'format.type' = 'json'," +*
> * "'format.fail-on-missing-field' = 'false', " +*
> * "'update-mode' = 'append')";*
>
> 和sink table " sqlDdlSinkTable ".
>
> * String sqlDdlSinkTable = "CREATE TABLE tb_sink" +*
> * "(id STRING, " +*
> * "wStart TIMESTAMP(3) , " +*
> * "v FLOAT)" +*
> * " WITH (" +*
> * "'connector.type' = 'pravega'," +*
> * "'connector.version' = '1'," +*
> * "'connector.connection-config.controller-uri'=
> 'tcp://192.168.188.130:9090 <http://192.168.188.130:9090>'," +*
> * "'connector.connection-config.default-scope' = 'Demo'," +*
> * "'connector.writer.stream' = 'result'," +*
> * "'connector.writer.routingkey-field-name' = 'id'," +*
> * "'connector.writer.mode' = 'atleast_once'," +*
> * "'format.type' = 'json'," +*
> * "'update-mode' = 'append')";*
>
> 在数据处理逻辑比较简单，计算10s tumble window的vaule的平均。
> 我一开始直接打印结果能够明确看到10s中输出一次计算结果，watermark也正常移动。
> *String sqlAna = "SELECT ts, id, v " +*
> * "FROM tb_JsonRecord " +*
> * "WHERE q=1 AND type=1";*
> * Table tableAnaRecord = tableEnv.sqlQuery(sqlAna);*
> * tableEnv.registerTable("tb_AnaRecord", tableAnaRecord);*
>
> *tableEnv.toAppendStream(tableAnaRecord, Row.class).print()*
>
>
>
> 但是我尝试将结果insert到sink table中发现，就没有任何结果被写入。
> *String sqlAnaAvg = "INSERT INTO tb_sink(id, wStart, v) " +*
> * "SELECT id, " +*
> * "TUMBLE_START(ts, INTERVAL '10' SECOND) as wStart, " +*
> * "AVG(v) FROM tb_AnaRecord " +*
> * "GROUP BY TUMBLE(ts, INTERVAL '10' SECOND), id"; *
> * tableEnv.sqlUpdate(sqlAnaAvg);*
>
>
> 提前感谢！
>
> BR//Chao