概述 Flink具有Table API和SQL-用于统一流和批处理。 Table API是用于Scala和Java的语言集成查询API，它允许以非常直观的方式组合来自关系运算符（例如选择，过滤和联接）的查询。 Flink的SQL支持基于实现SQL标准的Apache Calcite。无论输入是批处理输入（DataSet）还是流输入（DataStream），在两个接口中指定的查询都具有相同的语义并指....

问答 2020-06-03 来自：开发者社区

blink sql 实时计算,来源表5张,是否可以同时流join 2张以上的表

blink sql 实时计算,来源数据涉及5张表,每个表之间都互相都有关联,有些表是多条记录,有写表是一条数据,流的形式,是否可以同时join 5张表,如果之间有数据没有关联上,数据将会等到关联数据来时,在进行计算，是这样吗？

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更新时间 2024-07-24 13:39:46

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