diff --git a/functions-and-operators/expressions-pushed-down.md b/functions-and-operators/expressions-pushed-down.md
index 32a7ddfc025e..be5f51a50ed7 100644
--- a/functions-and-operators/expressions-pushed-down.md
+++ b/functions-and-operators/expressions-pushed-down.md
@@ -24,7 +24,7 @@ TiFlash 也支持[本页](/tiflash/tiflash-supported-pushdown-calculations.md)
| [数值运算](/functions-and-operators/numeric-functions-and-operators.md) | [+](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_plus)
[-](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_minus)
[*](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_times)
[/](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_divide)
[DIV](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_div)
[% (MOD)](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_mod)
[-](https://dev.mysql.com/doc/refman/8.0/en/arithmetic-functions.html#operator_unary-minus)
[ABS()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_abs)
[ACOS()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_acos)
[ASIN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_asin)
[ATAN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_atan)
[ATAN2(), ATAN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_atan2)
[CEIL()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_ceil)
[CEILING()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_ceiling)
[CONV()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_conv)
[COS()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_cos)
[COT()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_cot)
[CRC32()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_crc32)
[DEGREES()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_degrees)
[EXP()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_exp)
[FLOOR()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_floor)
[LN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_ln)
[LOG()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_log)
[LOG10()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_log10)
[LOG2()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_log2)
[MOD()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_mod)
[PI()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_pi)
[POW()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_pow)
[POWER()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_power)
[RADIANS()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_radians)
[RAND()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_rand)
[ROUND()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_round)
[SIGN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_sign)
[SIN()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_sin)
[SQRT()](https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_sqrt) |
| [控制流运算](/functions-and-operators/control-flow-functions.md) | [CASE](https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html#operator_case)
[IF()](https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html#function_if)
[IFNULL()](https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html#function_ifnull) |
| [JSON 运算](/functions-and-operators/json-functions.md) | [JSON_ARRAY_APPEND()](/functions-and-operators/json-functions/json-functions-modify.md#json_array_append)
[JSON_ARRAY()](/functions-and-operators/json-functions/json-functions-create.md#json_array)
[JSON_CONTAINS()](/functions-and-operators/json-functions/json-functions-search.md#json_contains)
[JSON_EXTRACT()](/functions-and-operators/json-functions/json-functions-search.md#json_extract)
[JSON_INSERT()](/functions-and-operators/json-functions/json-functions-modify.md#json_insert)
[JSON_LENGTH()](/functions-and-operators/json-functions/json-functions-return.md#json_length)
[JSON_MERGE_PATCH()](/functions-and-operators/json-functions/json-functions-modify.md#json_merge_patch)
[JSON_MERGE()](/functions-and-operators/json-functions/json-functions-modify.md#json_merge)
[JSON_OBJECT()](/functions-and-operators/json-functions/json-functions-create.md#json_object)
[JSON_REMOVE()](/functions-and-operators/json-functions/json-functions-modify.md#json_remove)
[JSON_REPLACE()](/functions-and-operators/json-functions/json-functions-modify.md#json_replace)
[JSON_SET()](/functions-and-operators/json-functions/json-functions-modify.md#json_set)
[JSON_TYPE()](/functions-and-operators/json-functions/json-functions-return.md#json_type)
[JSON_UNQUOTE()](/functions-and-operators/json-functions/json-functions-modify.md#json_unquote)
[JSON_VALID()](/functions-and-operators/json-functions/json-functions-return.md#json_valid)
[MEMBER OF()](/functions-and-operators/json-functions/json-functions-search.md#member-of) |
-| [日期运算](/functions-and-operators/date-and-time-functions.md) | [DATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date)
[DATE_FORMAT()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format)
[DATEDIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_datediff)
[DAYOFMONTH()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofmonth)
[DAYOFWEEK()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofweek)
[DAYOFYEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofyear)
[FROM_DAYS()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_from-days)
[HOUR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_hour)
[MAKEDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_makedate)
[MAKETIME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_maketime)
[MICROSECOND()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_microsecond)
[MINUTE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_minute)
[MONTH()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_month)
[MONTHNAME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_monthname)
[PERIOD_ADD()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_period-add)
[PERIOD_DIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_period-diff)
[SEC_TO_TIME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_sec-to-time)
[SECOND()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_second)
[SYSDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_sysdate)
[TIME_TO_SEC()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_time-to-sec)
[TIMEDIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_timediff)
[WEEK()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_week)
[WEEKOFYEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_weekofyear)
[YEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_year) |
+| [日期运算](/functions-and-operators/date-and-time-functions.md) | [DATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date)
[DATE_FORMAT()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format)
[DATEDIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_datediff)
[DAYOFMONTH()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofmonth)
[DAYOFWEEK()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofweek)
[DAYOFYEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_dayofyear)
[FROM_DAYS()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_from-days)
[HOUR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_hour)
[MAKEDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_makedate)
[MAKETIME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_maketime)
[MICROSECOND()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_microsecond)
[MINUTE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_minute)
[MONTH()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_month)
[MONTHNAME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_monthname)
[PERIOD_ADD()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_period-add)
[PERIOD_DIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_period-diff)
[SEC_TO_TIME()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_sec-to-time)
[SECOND()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_second)
[SYSDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_sysdate)
[TIME_TO_SEC()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_time-to-sec)
[TIMEDIFF()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_timediff)
[WEEK()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_week)
[WEEKOFYEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_weekofyear)
[YEAR()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_year)
[DATE_ADD()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-add)
[DATE_SUB()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-sub)
[ADDDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_adddate)
[SUBDATE()](https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_subdate) |
| [字符串函数](/functions-and-operators/string-functions.md) | [ASCII()](/functions-and-operators/string-functions.md#ascii)
[BIT_LENGTH()](/functions-and-operators/string-functions.md#bit_length)
[CHAR()](/functions-and-operators/string-functions.md#char)
[CHAR_LENGTH()](/functions-and-operators/string-functions.md#char_length)
[CONCAT()](/functions-and-operators/string-functions.md#concat)
[CONCAT_WS()](/functions-and-operators/string-functions.md#concat_ws)
[ELT()](/functions-and-operators/string-functions.md#elt)
[FIELD()](/functions-and-operators/string-functions.md#field)
[HEX()](/functions-and-operators/string-functions.md#hex)
[LENGTH()](/functions-and-operators/string-functions.md#length)
[LIKE](/functions-and-operators/string-functions.md#like)
[LOWER()](/functions-and-operators/string-functions.md#lower)
[LTRIM()](/functions-and-operators/string-functions.md#ltrim)
[MID()](/functions-and-operators/string-functions.md#mid)
[NOT LIKE](/functions-and-operators/string-functions.md#not-like)
[NOT REGEXP](/functions-and-operators/string-functions.md#not-regexp)
[REGEXP](/functions-and-operators/string-functions.md#regexp)
[REGEXP_LIKE()](/functions-and-operators/string-functions.md#regexp_like)
[REGEXP_REPLACE()](/functions-and-operators/string-functions.md#regexp_replace)
[REGEXP_SUBSTR()](/functions-and-operators/string-functions.md#regexp_substr)
[REPLACE()](/functions-and-operators/string-functions.md#replace)
[REVERSE()](/functions-and-operators/string-functions.md#reverse)
[RIGHT()](/functions-and-operators/string-functions.md#right), [RLIKE](/functions-and-operators/string-functions.md#rlike)
[RTRIM()](/functions-and-operators/string-functions.md#rtrim)
[SPACE()](/functions-and-operators/string-functions.md#space)
[STRCMP()](/functions-and-operators/string-functions.md#strcmp)
[SUBSTR()](/functions-and-operators/string-functions.md#substr)
[SUBSTRING()](/functions-and-operators/string-functions.md#substring)
[UPPER()](/functions-and-operators/string-functions.md#upper) |
| [聚合函数](/functions-and-operators/aggregate-group-by-functions.md#group-by-聚合函数) | [COUNT()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_count)
[COUNT(DISTINCT)](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_count-distinct)
[SUM()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_sum)
[AVG()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_avg)
[MAX()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_max)
[MIN()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_min)
[VARIANCE()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_variance)
[VAR_POP()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_var-pop)
[STD()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_std)
[STDDEV()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_stddev)
[STDDEV_POP](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_stddev-pop)
[VAR_SAMP()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_var-samp)
[STDDEV_SAMP()](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_stddev-samp)
[JSON_ARRAYAGG(key)](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_json-arrayagg)
[JSON_OBJECTAGG(key, value)](https://dev.mysql.com/doc/refman/8.0/en/aggregate-functions.html#function_json-objectagg) |
| [加密和压缩函数](/functions-and-operators/encryption-and-compression-functions.md#加密和压缩函数) | [MD5()](/functions-and-operators/encryption-and-compression-functions.md#md5)
[SHA1(), SHA()](/functions-and-operators/encryption-and-compression-functions.md#sha1)
[UNCOMPRESSED_LENGTH()](/functions-and-operators/encryption-and-compression-functions.md#uncompressed_length) |