文章浏览阅读2.9k次,点赞2次,收藏4次。Flink DataStream State Backend(状态后端)State Backend(状态后端)用Data Stream Api 编写的程序经常是需要保存状态的,如下面情况:Windows中聚集的元素直到被触发计算。在触发之前,需要保存Win......
文章浏览阅读1.7k次。本章内容对应官网:https://nightlies.apache.org/flink/flink-docs-release-1.12/dev/table/streaming/time_attributes.html1.时间属性介绍Time attributes can be part of every table schema.They are defined when creating a table from a CREATE TABLE DDL or a DataStre......
flinksql bug:In ‘hash‘ distribution mode with equality fields set, partition field ‘1000: ymd_bucket,FlinkSql bug :OVER windows‘ ordering in stream mode must be defined on a time attribute.,FlinkSql bug : Column types of query result and sink for registered table ‘default_catalog.******,hi......
文章浏览阅读3.1k次。AboutI will try to give the mainline of how does Flink buildint the logical plan 2 physical plan 2 task. Main classes and methods are mentioned.Format explainationthis is Class this is method()thi_transformation schedule...