实时计算 Flink版join 的相关内容

问答 2024-05-07 来自：开发者社区

flink sql 中的lookup join不支持MiniBatch模式吗？

flink版本1.15 请问flink sql 中的lookup join不支持MiniBatch模式吗？我在代码中设了下面3个参数来开启微批处理：tableEnv.getConfig().set("table.exec.mini-batch.enabled", "true");tableEnv.getConfig().set("table.exec.mini-batch.allow-late....

问答 2024-04-24 来自：开发者社区

在Flink 多表 join 写入 es ，有什么其他方案嘛？

问答 2024-04-06 来自：开发者社区

有人用过FLINK SQL的事件时间 Temporal Join吗?

有人用过FLINK SQL的事件时间 Temporal Join吗，我这边left表来源于kafka，right表也来源于kafka，left表定义了水位线，right表定义了水位线和主键，2个表关联的时候，随便怎么弄都不触发执行，请问谁能帮忙看下吗？

问答 2024-04-03 来自：开发者社区

Flink的LOOKUP JOIN 支持子查询吗？

问答 2024-03-25 来自：开发者社区

请问flink sql 事件时间 Temporal Join 设计多个并行度不触发计算

环境说明：flink 1.15 场景描述：left 表是一个来源于kafka的表且定义了水位线，right表是来自于mysql cdc的表，right表定义了主键和水位线，按flink官方说法right表就是一个版本表了。2个表按FOR SYSTEM_TIME AS OF事件时间的方式关联。且关联字段都是主键。在执行环境中设置了程序的并行度为3。问题描述：right表本身有不少数据了，当lef....

问答 2024-03-22 来自：开发者社区

请问flink sql 事件时间 Temporal Join 不触发计算

环境说明：flink 1.15 场景描述：left 表是一个来源于kafka的表且定义了水位线，right表是来自于mysql cdc的表，right表定义了主键和水位线，按flink官方说法right表就是一个版本表了。2个表按FOR SYSTEM_TIME AS OF事件时间的方式关联。且关联字段都是主键。问题描述：right表本身有不少数据了，当left来一条数据的时候结果没有触发计算。....

问答 2024-03-20 来自：开发者社区

flink中lookup Join hologres的维表，可以指定查bitmap吗？

flink中lookup Join hologres的维表，可以指定查bitmap吗？如果查询条件同时走clustering key和bitmap时，发现bitmap的速度更快

问答 2024-03-19 来自：开发者社区

flink中，join如果不指定窗口，会把join结果一直存储下来吗？

问答 2024-03-18 来自：开发者社区

Flink cdc3.0 支持变化的表和多张维表 join 了吗？

文章 2024-03-18 来自：开发者社区

在Flink中，你可以通过以下方法为join操作设置并行度

在Flink中，你可以通过以下方法为join操作设置并行度：使用ExecutionEnvironment的setParallelism方法。首先，你需要创建一个ExecutionEnvironment实例，然后调用setParallelism方法来设置并行度。例如： ExecutionEnvironment env =...

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更新时间 2024-11-29 17:31:01

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

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产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优