53       await this.query(
55       await this.query(`create view ${this.tableName('process')} as
59       await this.query(`create virtual table ${this.tableName('span')}
75     this.query(`update ${this.tableName('window')} set
100     const query = `select  constant
109     const rawResult = await this.query(query);
135     const query = `select ts,dur,cpu,utid from ${this.tableName('span')}  constant
145     const rawResult = await this.query(query);
175   private async query(query: string) {  method in ProcessSchedulingTrackController
176     const result = await this.engine.query(query);
178       console.error(`Query error "${query}": ${result.error}`);
179       throw new Error(`Query error "${query}": ${result.error}`);
186       this.query(`drop table ${this.tableName('window')}`);
187       this.query(`drop table ${this.tableName('span')}`);