LogQL stream selectors
The log stream selector limits which records a query will be evaluated on. As stream selectors match on the indexed key-value labels, this filtering is very cheap and fast to do.
The log stream selector is written by wrapping the key-value pairs in a pair of curly braces:
{app="mysql",name="mysql-backup"}
{host="td1-plg-vmweb01",log_type="nginx_access_log"}
{host=~"^td1-plg-vmweb.*",log_type="nginx_access_log"}
The following comparison operators are supported:
=
: exactly equal.!=
: not equal.=~
: regex matches.!~
: regex does not match.
Regexes use Go RE2 syntax.
The matching is case-sensitive by default and can be switched to case-insensitive prefixing the regex with (?i)
.