Why is it not supported to specify a fixed index to write to ES

[herbguo]

Hey, Everyboxy! Currently, jaeger supports specifying an index prefix when writing trace data to ES, and then will create index template to create jaeger-spacn-$date after the index. the code is here, but some requirements are to write a fixed ES index, and there is no way to achieve this, it is recommended to add parameters, such as fixedIndex to achieve this function , it doesn't look too complicated.
Thanks!