flink SQL数据的相关内容

问答 2021-01-26 来自：开发者社区

flink sql 大量数据时 jvm heap飙升，直至taskmanager挂掉

环境信息 flink version: 1.11jdk version: 1.8.0_231 业务逻辑使用flink sql注册mysql表，然后进行查询，通过toAppendStream转换为流写入到kudu，发现在flink sql查询期间，由于执行计划中包含cast转换，数据没能达到下一步，一直停止在查询部分，此时 jvm heap极具上升，直到taskmanager oom。

问答 2020-08-21 来自：开发者社区

flink sql 接canal 数据怎么获取每条数据是insert、update或是 #Flink

flink sql 接canal 数据怎么获取每条数据是insert、update或是delete的？#Flink

问答 2020-06-30 来自：开发者社区

flink sql client数据插入文件报错，请教各位大佬，这个该怎么解决? #Flink

问答 2020-06-18 来自：开发者社区

Flink sql 支持在流式数据上使用LAG和LEAD函数吗

如何在流式数据源上使用分析函数LAG和EAD函数： kafka输入数据如： {"t":"2020-04-01T05:00:00Z", "id":"1", "speed":1.0} {"t":"2020-04-01T05:05:00Z", "id":"1", "speed":2.0} {"t":"2020-04-01T05:10:00Z", "id":"1", "speed":3.0} {"t".....

问答 2020-06-18 来自：开发者社区

Flink SQL 如何在流式数据上使用LAG和LEAD函数

问答 2020-05-25 来自：开发者社区

使用Flink sql client，我实现了从已经手动从pg库建好的表里读取到了数据 #Flink

使用Flink sql client，我实现了从已经手动从pg库建好的表里读取到了数据，用ddl命令create了另一个表，然后使用insert into sink_table select * from source_table，交互信息显示成功将作业提交到集群，但为什么没有如期望中一样:在pg库中建立那张sink表 #Flink

问答 2020-05-25 来自：开发者社区

flink sql怎么读取mysql数据作为维表？ #Flink

问答 2020-05-20 来自：开发者社区

FLINK SQL 1.10 如何直接将bigint类型时间数据转换为Timestamp类型数据而不

我是Flink新手，正在学习flink sql相关开发，参考的阿里云开发文档进行学习 https://www.alibabacloud.com/help/zh/faq-detail/64813.htm?spm=a2c63.q38357.a3.3.368d1352JdVsRU 我现在有一些13位的bigint格式时间数据，想把他们转换成timestamp格式数据。开发手册上说可以直接用TO_TI.....

问答 2020-05-13 来自：开发者社区

咨询一个flink sql的基础问题，如果要统计的数据（在kafka中）是那种嵌套多层的#Flink

咨询一个flink sql的基础问题，如果要统计的数据（在kafka中）是那种嵌套多层的json，能把想要的字段数据映射出来么？#Flink

问答 2020-04-30 来自：开发者社区

flink sql没法指定并行度。那kafka数据消费不过来，怎么办 #Flink

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