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TiFlash: update the JSON push-down instruction #13875

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Jul 10, 2023
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TiFlash: update the JSON push-down instruction #13875

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qiancai Jun 14, 2023
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qiancai Jun 14, 2023
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qiancai Jul 10, 2023
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lilin90 Jul 10, 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 does not support pushing down `JSON` functions to TiFlash.
- 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.
- Do not use any replication tool to replicate data containing non-standard `JSON` data types, such as `DATE`, `DATETIME`, and `TIME`.

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