Method fill

packages/db/src/clickhouse/query-builder.ts:271–283

(
    from: string | Date | Expression,
    to: string | Date | Expression,
    step: string | Expression
  )

  // Fill
  fill(
    from: string | Date | Expression,
    to: string | Date | Expression,
    step: string | Expression
  ): this {
    this._fill = {
      from:
        from instanceof Expression ? from.toString() : this.escapeDate(from),
      to: to instanceof Expression ? to.toString() : this.escapeDate(to),
      step: step instanceof Expression ? step.toString() : step,
    };
    return this;
  }

  private escapeDate(value: string | Date): string {
    if (value instanceof Date) {