flink sql任务有三个mysql cdc 源表通过left join关联写入目标表。过了半天之后，更新源表中的记录，发现目标表没更新。这是flink SQL不支持吗，还是要做什么特殊设置，或者使用什么语法？就是更新了where条件对应的记录，另外，大表join，是如何做实时记录匹配的，应该是需要流内存拦截吧，不然怎么做到实时匹配呢？假如关联的两张表的记录一个在最开始就来了，另一个迟了很久才....

问答 2023-07-13 来自：开发者社区

请教个Flink CDC问题啊，oracle cdc sql任务 ,源表1亿条数据，现在全量阶？

请教个Flink CDC问题啊，oracle cdc sql任务 ,源表1亿条数据，现在全量阶段一直没有数据写入到目标库，貌似卡住了，在哪可以看到全量的进度或者日志吗？

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更新时间 2024-06-13 11:55:05

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