Journey of Migrating Millions of Queries on The Cloud. - Taro L. Saito; Naoki Takezoe; Yukihiro Okada; Takako Shimamoto; Dongmin Yu; Suprith Chandrashekharachar; Kai Sasaki; Shohei Okumiya; Yan Wang; Takashi Kurihara; Ryu Kobayashi; Keisuke Suzuki; et al. (DBTest@SIGMOD, 2022)