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ti-chi-bot merged 3 commits into from
Dec 14, 2023
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br: restore json type (#15701) #15710

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qiancai Dec 13, 2023
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Expand Up @@ -28,7 +28,7 @@ For more information, see [JSON Functions](/functions-and-operators/json-functio
## Restrictions

- Currently, TiDB only supports pushing down limited `JSON` functions to TiFlash. For more information, see [Push-down expressions](/tiflash/tiflash-supported-pushdown-calculations.md#push-down-expressions).
- TiDB Backup & Restore (BR) versions earlier than v6.3.0 do not support recovering data containing JSON columns. No version of BR supports recovering data containing JSON columns to TiDB clusters earlier than v6.3.0.
- TiDB Backup & Restore (BR) changes how JSON column data is encoded in v6.3.0. Therefore, it is not recommended to use BR to restore data containing JSON columns to a TiDB cluster earlier than v6.3.0.
- Do not use any replication tool to replicate data containing non-standard `JSON` data types, such as `DATE`, `DATETIME`, and `TIME`.

## MySQL compatibility
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