[Enhancement](regexp) Support zero-width assertions in some regexp fu…

docs/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract-all.md

@@ -13,7 +13,7 @@ It should be noted that when handling character set matching, Utf-8 standard cha
 
 If the 'pattern' is not allowed regexp regular, throw error;
 
-Support character match classes : https://github.com/google/re2/wiki/Syntax
+Support character match classes : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## Syntax
 

docs/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract-or-null.md

@@ -16,7 +16,7 @@ Support since Apache Doris 3.0.2
 
 If the 'pattern' is not allowed regexp regular,throw error
 
-Support character match classes : https://github.com/google/re2/wiki/Syntax
+Support character match classes : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## Syntax
 

docs/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract.md

@@ -17,7 +17,7 @@ The `pos` parameter is of 'integer' type, used to specify the position in the st
 
 If the `pattern` is not allowed regexp regular,throw error;
 
-Support character match classes : https://github.com/google/re2/wiki/Syntax
+Support character match classes : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## Syntax
 ```sql

docs/sql-manual/sql-functions/scalar-functions/string-functions/regexp.md

@@ -6,13 +6,15 @@
 ---
 
 ## Description
-
+~
 Performs a regular expression match on the string str, returning true if the match succeeds, otherwise false. pattern is the regular expression pattern.
 It should be noted that when handling character set matching, Utf-8 standard character classes should be used. This ensures that functions can correctly identify and process various characters from different languages.
 
 If the `pattern` is not allowed regexp regular,throw error;
 
-Support character match classes : https://github.com/google/re2/wiki/Syntax
+Support character match classes : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
+
+Note: After testing, the performance of this function is about 12 times faster when the pattern does not include look-around zero-width assertions (`?=`, `?!`, `?<=`, `?<!`), so it is recommended to rewrite the regular expression to exclude these types of zero-width assertions when using this function.
 
 ## Syntax
 

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract-all.md

@@ -32,7 +32,7 @@ REGEXP_EXTRACT_ALL 函数用于对给定字符串str执行正则表达式匹配
 
 如果 'pattern' 参数不符合正则表达式，则抛出错误
 
-支持的字符匹配种类 : https://github.com/google/re2/wiki/Syntax
+支持的字符匹配种类 : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## 语法
 

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract-or-null.md

@@ -17,7 +17,7 @@
 从 Apache Doris 3.0.2 版本开始支持
 :::
 
-支持的字符匹配种类 : https://github.com/google/re2/wiki/Syntax
+支持的字符匹配种类 : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## 语法
 

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/regexp-extract.md

@@ -37,7 +37,7 @@ pos参数为 'integer' 类型，用于指定字符串中开始搜索正则表达
 
 如果 'pattern' 参数不符合正则表达式，则抛出错误
 
-支持的字符匹配种类 : https://github.com/google/re2/wiki/Syntax
+支持的字符匹配种类 : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
 
 ## 语法
 ```sql

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/scalar-functions/string-functions/regexp.md

@@ -12,7 +12,9 @@
 
 如果 'pattern' 参数不符合正则表达式，则抛出错误
 
-支持的字符匹配种类 : https://github.com/google/re2/wiki/Syntax
+支持的字符匹配种类 : https://www.boost.org/doc/libs/latest/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html
+
+注: 经过测试，该函数在 pattern 不包含 look-around 类零宽断言(`?=`, `?!`, `?<=` `?<!`)时的性能约是包含时的12倍，所以在使用该函数时，更推荐改写正则表达式，使其不包含该类零宽断言
 
 ## 语法