update column names on db init
update column names on db init

Summary:
column names on tsv table were changed but the init script wasn't updated - this
updates them

Test Plan: clear the table and rerun the init script, make sure integration test passes

Reviewers: maasted, jackgao

Reviewed By: jackgao

Subscribers: rhu, gareth

Differential Revision: https://phabricator.internal.justin.tv/D3227

TwitchScience/rs_ingester,TwitchScience/rs_ingester