remove JSON_REPLACE from supported expressions for pushdown to TiKV

functions-and-operators/expressions-pushed-down.md

@@ -15,7 +15,7 @@ summary: TiDB 中下推到 TiKV 的表达式列表及相关设置。
 | [比较运算](/functions-and-operators/operators.md#比较方法和操作符) | <, <=, =, != (`<>`), >, >=, [`<=>`](https://dev.mysql.com/doc/refman/5.7/en/comparison-operators.html#operator_equal-to), [`IN()`](https://dev.mysql.com/doc/refman/5.7/en/comparison-operators.html#function_in), IS NULL, LIKE, IS TRUE, IS FALSE, [`COALESCE()`](https://dev.mysql.com/doc/refman/5.7/en/comparison-operators.html#function_coalesce) |
 | [数值运算](/functions-and-operators/numeric-functions-and-operators.md) | +, -, *, /, [`ABS()`](https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_abs), [`CEIL()`](https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_ceil), [`CEILING()`](https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_ceiling), [`FLOOR()`](https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_floor), [`MOD()`](https://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_mod) |
 | [控制流运算](/functions-and-operators/control-flow-functions.md) | [`CASE`](https://dev.mysql.com/doc/refman/5.7/en/flow-control-functions.html#operator_case), [`IF()`](https://dev.mysql.com/doc/refman/5.7/en/flow-control-functions.html#function_if), [`IFNULL()`](https://dev.mysql.com/doc/refman/5.7/en/flow-control-functions.html#function_ifnull) |
-| [JSON 运算](/functions-and-operators/json-functions.md) | [JSON_TYPE(json_val)][json_type],<br/> [JSON_EXTRACT(json_doc, path[, path] ...)][json_extract],<br/> [JSON_OBJECT(key, val[, key, val] ...)][json_object],<br/> [JSON_ARRAY([val[, val] ...])][json_array],<br/> [JSON_MERGE(json_doc, json_doc[, json_doc] ...)][json_merge],<br/> [JSON_SET(json_doc, path, val[, path, val] ...)][json_set],<br/> [JSON_INSERT(json_doc, path, val[, path, val] ...)][json_insert],<br/> [JSON_REPLACE(json_doc, path, val[, path, val] ...)][json_replace],<br/> [JSON_REMOVE(json_doc, path[, path] ...)][json_remove] |
+| [JSON 运算](/functions-and-operators/json-functions.md) | [JSON_TYPE(json_val)][json_type],<br/> [JSON_EXTRACT(json_doc, path[, path] ...)][json_extract],<br/> [JSON_OBJECT(key, val[, key, val] ...)][json_object],<br/> [JSON_ARRAY([val[, val] ...])][json_array],<br/> [JSON_MERGE(json_doc, json_doc[, json_doc] ...)][json_merge],<br/> [JSON_SET(json_doc, path, val[, path, val] ...)][json_set],<br/> [JSON_INSERT(json_doc, path, val[, path, val] ...)][json_insert],<br/> [JSON_REMOVE(json_doc, path[, path] ...)][json_remove] |
 | [日期运算](/functions-and-operators/date-and-time-functions.md) | [`DATE_FORMAT()`](https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html#function_date-format), [`SYSDATE()`](https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html#function_sysdate)  |
 | [字符串函数](/functions-and-operators/string-functions.md) | [`RIGHT()`](https://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_right) |