实时数仓 Hologres字段的相关内容

Hologres新建表，字段id设为bigserial类型，且为主键，在插入数据时，id为空

Hologres新建表，字段id设为bigserial类型，且为主键，在插入数据时，id为空。插入数据后id取的是否是序列里面的值？如果是，为什么插入多条数据后，查询序列值仍为初始值1？如果不是，那这个自增机制是怎样的，与自动创建的序列是否有关系？

Hologres中，实时同步的配置中可以选择字段映射吗？

我想把mysql的两张表A和B实时同步到holo的同一张表C中。其中A中有5个字段，B中有A的5个字段和一个独有的字段，C中只有A的5个字段。实时同步的配置中可以选择字段映射吗？

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用datawork同步数据到hologres，数据里面涉及时间的字段，时间都发生了变化，怎么解决呢？

用datawork同步数据到hologres，数据里面涉及时间的字段，时间都发生了变化，这种咋处理呢

实时数仓血缘关系只是表级别么？如果实时数仓要做字段级别血缘，元数据中心与统一字段指标体 #Flink

实时数仓血缘关系只是表级别么？如果实时数仓要做字段级别血缘，元数据中心与统一字段指标体系建立，再结合流血缘关系，这个方案是否可行，有没有欠缺地方？ #Flink

Hologres里面字段的value为null的话，是否不占用存储空间

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更新时间 2024-05-19 15:06:25

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