log_template_hash
Computes a hash of the structural log template, for grouping similar logs without allocating the template string.
Equivalent to hashing the output of extract_log_template, but with zero heap allocations, except that key=value pairs separated only by whitespace hash alike in any order: a=1 b=2 and b=7 a=9 share a hash, while pairs on either side of other text do not trade places.
Syntax
log_template_hash(source)Parameters
Prop
Type
Given a dynamic field
This parameter is string-only. In permissive mode, which every query runs in, almost every field arrives as a dynamic, so passing one works because Berserk injects asstring: extract-or-null, the value when it really is a string and null otherwise, so the call yields null (a predicate yields false). A property bag or array is therefore not matched, and tostring() is never applied implicitly — use it explicitly to match a bag's JSON text, keys included. To search the strings inside an object or array, write body.* contains "x" (also has, hasprefix and hassuffix). See String coercion and the asXXX family.
Returns: long