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Implement JSON_STORAGE_FREE function #38517

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YangKeao opened this issue Oct 18, 2022 · 0 comments · Fixed by #38544
Closed

Implement JSON_STORAGE_FREE function #38517

YangKeao opened this issue Oct 18, 2022 · 0 comments · Fixed by #38544
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@YangKeao
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Enhancement

MySQL has JSON_STORAGE_FREE function. It represents the freed space after partial update. However, TiDB (both execution and storage) doesn't support in place partial update for json, so we could simply return a 0 for all json types.
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json: add json_storage_free function YangKeao/tidb
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