Does the TiKV client module only have a region cache, i.e., a cache of region information?

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Original topic: TiKV client模块只有region cache，即region信息的缓存吗？

| username: alfred

【TiDB Usage Environment】Production Environment / Testing / POC
【TiDB Version】
【Encountered Issues】
【Reproduction Path】What operations were performed that led to the issue
【Issue Phenomenon and Impact】

【Attachments】

Please provide the version information of each component, such as cdc/tikv, which can be obtained by executing cdc version/tikv-server --version.

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| username: h5n1 | Original post link

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| username: TiDBer_jYQINSnf | Original post link

There is also a coprocessor cache.