字符串函数（Lakehouse v1）
本节提供 PlaidCloud Lakehouse 中字符串相关函数的参考信息。
字符串处理：
Section titled “字符串处理：”- CONCAT
- CONCAT_WS
- INSERT
- LEFT
- LPAD
- REPEAT
- REPLACE
- REVERSE
- RIGHT
- RPAD
- SPLIT
- SPLIT_PART
- SUBSTR
- SUBSTRING
- TRANSLATE
- TRIM
- LTRIM
- RTRIM
- TRIM_BOTH
- TRIM_LEADING
- TRIM_TRAILING
字符串信息：
Section titled “字符串信息：”- ASCII
- BIT_LENGTH
- CHAR_LENGTH
- CHARACTER_LENGTH
- INSTR
- LENGTH
- LOCATE
- OCTET_LENGTH
- ORD
- POSITION
- STRCMP
- JARO_WINKLER
- LENGTH_UTF8
大小写转换：
Section titled “大小写转换：”正则表达式：
Section titled “正则表达式：”- LIKE
- NOT_LIKE
- NOT_REGEXP
- NOT_RLIKE
- REGEXP
- REGEXP_INSTR
- REGEXP_LIKE
- REGEXP_REPLACE
- REGEXP_SUBSTR
- RLIKE