The streamID.marshalString() is executed in hot path if the query selects _stream_id field.
Command to run the benchmark:
go test ./lib/logstorage/ -run=NONE -bench=BenchmarkStreamIDMarshalString -benchtime=5s
Results before the commit:
BenchmarkStreamIDMarshalString-16 438480714 14.04 ns/op 71.23 MB/s 0 B/op 0 allocs/op
Results after the commit:
BenchmarkStreamIDMarshalString-16 982459660 6.049 ns/op 165.30 MB/s 0 B/op 0 allocs/op
