Improve partial index sargable for like

create index ix2 on default where x like "test%";
select meta().id from default where x like "test%"; – sargable to ix2
select meta().id from default where x like "testa%"; – not saragble to ix2

If rewrite equivalent index below both queries are sargable
create index ix2 on default where x >= "test" and x < "tesu";