create table with id as bigint，search table return id as float64

[ninesunqian]

Hi,
I create table by " CREATE TABLE IF NOT EXISTS tableA (id bigint, idea text, note text, style string, ts bigint, trashed bool), but the "_id" in SearchResponseHits.Hits is float64. If the id is very big number, the float64 value will not match int64 value.