动态表时态表版本表，这三个是什么关系？
flinksql里面还有其他一些表的概念么？*来自志愿者整理的flink邮件归档
写回答
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Temporal(dynamic) Table: Temporal table is a table that evolves over time
as known as Flink *dynamic table
rows in temporal table are associated with one or more temporal periods,
all Flink tables are temporal(dynamic) table.
Version: A dynamic table can split into a set of versioned table
snapshots, the version in table snapshots represents the valid life
circle of rows, the start time and the end time of the valid period can be
assigned by users. Temporal table can split to versioned table and regular
table according to the table can tracks its history version or not.
Versioned table: If the row in dynamic table can track its history
changes and visit its history versions, we called this kind of
dynamic table as versioned table.
Regular table*:* For regular table, the row in dynamic table can only
track its latest version. The table in lookup join can only track its
latest version it's also a regular table.
https://wiki.apache.org/confluence/display/FLINK/FLIP-132+Temporal+Table+DDL+and+Temporal+Table+Join*来自志愿者整理的FLINK邮件归档
2021-12-02 17:45:36赞同 展开评论 打赏
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