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json-functions: Update status and links (#8762) #9019

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Jun 20, 2022
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json-functions: Update status and links (#8762) #9019

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json-functions: Update status and links
dveeden May 30, 2022
e2d4405
Fix dead anchor
dveeden May 30, 2022
0ca231f
Adjust for v5.1.x
dveeden Jun 20, 2022
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10 changes: 8 additions & 2 deletions functions-and-operators/json-functions.md
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Expand Up @@ -55,12 +55,13 @@ TiDB supports most of the JSON functions that shipped with the GA release of MyS
| [JSON_DEPTH(json_doc)][json_depth] | Returns the maximum depth of a JSON document |
| [JSON_LENGTH(json_doc[, path])][json_length] | Returns the length of a JSON document, or, if a path argument is given, the length of the value within the path |
| [JSON_TYPE(json_val)][json_type] | Returns a string indicating the type of a JSON value |
| [JSON_VALID(json_doc)][json_valid] | Checks if a json_doc is valid JSON. Useful for checking a column before converting it to the json type. |
| [JSON_VALID(json_doc)][json_valid] | Checks if a json\_doc is valid JSON. Useful for checking a column before converting it to the json type. |

## Utility Functions

| Function Name | Description |
| --------------------------------- | ----------- |
| [JSON_PRETTY(json_doc)][json_pretty] | Pretty formatting of a JSON document |
| [JSON_STORAGE_SIZE(json_doc)][json_storage_size] | Returns an approximate size of bytes required to store the json value. As the size does not account for TiKV using compression, the output of this function is not strictly compatible with MySQL. |

## Aggregate Functions
Expand All @@ -74,7 +75,6 @@ TiDB supports most of the JSON functions that shipped with the GA release of MyS
The following JSON functions are unsupported in TiDB. You can track the progress in adding them in [TiDB #7546](https://github.com/pingcap/tidb/issues/7546):

* `JSON_MERGE_PATCH`
* `JSON_PRETTY`
* `JSON_ARRAYAGG`

## See also
Expand Down Expand Up @@ -131,3 +131,9 @@ The following JSON functions are unsupported in TiDB. You can track the progress
[json_array_append]: https://dev.mysql.com/doc/refman/5.7/en/json-modification-functions.html#function_json-array-append

[json_array_insert]: https://dev.mysql.com/doc/refman/5.7/en/json-modification-functions.html#function_json-array-insert

[json_objectagg]: https://dev.mysql.com/doc/refman/5.7/en/aggregate-functions.html#function_json-objectagg

[json_pretty]: https://dev.mysql.com/doc/refman/5.7/en/json-utility-functions.html#function_json-pretty

[json_storage_size]: https://dev.mysql.com/doc/refman/5.7/en/json-utility-functions.html#function_json-storage-size