正则匹配 子字符串
正则匹配
Functions for Searching in Strings | ClickHouse Docs https://clickhouse.com/docs/en/sql-reference/functions/string-search-functions
If you only want to search substrings in a string, you can use functions like or position instead - they work much faster than this function.
If you only want to search multiple substrings in a string, you can use function multiSearchAny instead - it works much faster than this function.
