即使BigQuery直接向我们提供了点击（页面和事件），但它没有每页花费的时间（因为它是两次连续点击之间的差异，因为页面路径已经改变）以便重新计算一组页面花费的全球时间。
我知道我可以在我的数据仓库中使用我的大查询表的简单副本（页面上的过滤器和a.hit_number = b.hit_number-1上的连接）来完成它但我希望直接计算它在BigQuery中。
答案 0 :(得分：1)
是肯定的。可以使用bigquery的窗口函数https://cloud.google.com/bigquery/query-reference#windowfunctions
轻松完成答案 1 :(得分：1)
希望以下简化示例将有所帮助
void FixedUpdate ()
{
isGrounded = GroundedCheck ();
if (gm.gameState == GameManager.GameState.playing) {
foreach (GameObject g in gm.deadObjects) {
if (g.name == "P13") {
g.GetComponent<Mygroup> ().targetName = "P12";
} else if (g.name == "P12") {
g.GetComponent<Mygroup> ().targetName = "P11";
} else if (g.name == "P11") {
g.GetComponent<Mygroup> ().targetName = "P10";
} else if (g.name == "P10") {
g.GetComponent<Mygroup> ().targetName = "P9";
} else if (g.name == "P9") {
g.GetComponent<Mygroup> ().targetName = "P8";
} else if (g.name == "P8") {
g.GetComponent<Mygroup> ().targetName = "P7";
} else if (g.name == "P7") {
g.GetComponent<Mygroup> ().targetName = "P6";
} else if (g.name == "P6") {
g.GetComponent<Mygroup> ().targetName = "P5";
} else if (g.name == "P5") {
g.GetComponent<Mygroup> ().targetName = "P4";
} else if (g.name == "P4") {
g.GetComponent<Mygroup> ().targetName = "P3";
} else if (g.name == "P3") {
g.GetComponent<Mygroup> ().targetName = "P2";
} else if (g.name == "P2") {
g.GetComponent<Mygroup> ().targetName = "P1";
} else if (g.name == "P1") {
g.GetComponent<Mygroup> ().targetName = "P0";
} else if (g.name == "P0") {
g.GetComponent<Mygroup> ().targetName = null;
}
}
if (this.gameObject.name == "P0") {
targetName = "";
} else if (this.gameObject.name == "P1")
targetName = "P0";
else if (this.gameObject.name == "P2")
targetName = "P1";
else if (this.gameObject.name == "P3")
targetName = "P2";
else if (this.gameObject.name == "P4")
targetName = "P3";
else if (this.gameObject.name == "P5")
targetName = "P4";
else if (this.gameObject.name == "P6")
targetName = "P5";
else if (this.gameObject.name == "P7")
targetName = "P6";
else if (this.gameObject.name == "P8")
targetName = "P7";
else if (this.gameObject.name == "P9")
targetName = "P8";
else if (this.gameObject.name == "P10")
targetName = "P9";
else if (this.gameObject.name == "P11")
targetName = "P10";
else if (this.gameObject.name == "P12")
targetName = "P11";
target = GameObject.Find (targetName);
if (isGrounded) {
jumping = false;
doubleJump = false;
jumpAnim = false;
if (this.gameObject.name == "P0" && isGrounded && !doubleJump && !jumping) {
if (Input.GetMouseButtonDown (0) && this.gameObject.name == "P0") {
jumping = true;
rid.velocity = new Vector3 (0, 50f * jump, 0);
doubleJump = true;
}
}
if (this.gameObject.name == "P0" && !isGrounded && doubleJump && jumping) {
if (Input.GetMouseButtonDown (0) && this.gameObject.name == "P0") {
rid.velocity = new Vector3 (0, 60f * jump, 0);
doubleJump = false;
}
}
if (target != null && this.gameObject.name != "P0" && isGrounded && target.GetComponent<Mygroup> ().doubleJump && !target.GetComponent<Mygroup> ().isGrounded) {
StartCoroutine (Jump ());
}
if (target != null && this.gameObject.name != "P0" && !isGrounded && doubleJump && !target.GetComponent<Mygroup> ().isGrounded && !target.GetComponent<Mygroup> ().doubleJump) {
StartCoroutine (JumpDouble ());
}
}
IEnumerator Jump ()
{
yield return new WaitForSeconds (time);
if (gameObject.name == "P1")
rid.velocity = new Vector3 (0, 49.6f * jump, 0);
if (gameObject.name == "P2")
rid.velocity = new Vector3 (0, 49.4f * jump, 0);
if (gameObject.name == "P3")
rid.velocity = new Vector3 (0, 49.2f * jump, 0);
if (gameObject.name == "P4")
rid.velocity = new Vector3 (0, 49f * jump, 0);
if (gameObject.name == "P5")
rid.velocity = new Vector3 (0, 48.8f * jump, 0);
if (gameObject.name == "P6")
rid.velocity = new Vector3 (0, 48.6f * jump, 0);
if (gameObject.name == "P7")
rid.velocity = new Vector3 (0, 48.4f * jump, 0);
if (gameObject.name == "P8")
rid.velocity = new Vector3 (0, 48.2f * jump, 0);
if (gameObject.name == "P9")
rid.velocity = new Vector3 (0, 48f * jump, 0);
if (gameObject.name == "P10")
rid.velocity = new Vector3 (0, 47.8f * jump, 0);
if (gameObject.name == "P11")
rid.velocity = new Vector3 (0, 47.6f * jump, 0);
if (gameObject.name == "P12")
rid.velocity = new Vector3 (0, 47.4f * jump, 0);
jumping = true;
doubleJump = true;
}
IEnumerator JumpDouble ()
{
yield return new WaitForSeconds (time);
if (doubleJump) {
if (gameObject.name == "P1")
rid.velocity = new Vector3 (0, 59.8f * jump, 0);
if (gameObject.name == "P2")
rid.velocity = new Vector3 (0, 59.6f * jump, 0);
if (gameObject.name == "P3")
rid.velocity = new Vector3 (0, 59.4f * jump, 0);
if (gameObject.name == "P4")
rid.velocity = new Vector3 (0, 59.2f * jump, 0);
if (gameObject.name == "P5")
rid.velocity = new Vector3 (0, 59f * jump, 0);
if (gameObject.name == "P6")
rid.velocity = new Vector3 (0, 58.8f * jump, 0);
if (gameObject.name == "P7")
rid.velocity = new Vector3 (0, 58.6f * jump, 0);
if (gameObject.name == "P8")
rid.velocity = new Vector3 (0, 58.4f * jump, 0);
if (gameObject.name == "P9")
rid.velocity = new Vector3 (0, 58.2f * jump, 0);
if (gameObject.name == "P10")
rid.velocity = new Vector3 (0, 58f * jump, 0);
if (gameObject.name == "P11")
rid.velocity = new Vector3 (0, 57.8f * jump, 0);
if (gameObject.name == "P12")
rid.velocity = new Vector3 (0, 57.6f * jump, 0);
doubleJump = false;
jumping = false;
}
}
预期产出如下：
select
user,
page,
ts as start,
CASE WHEN finish = 0 THEN NULL
ELSE finish - ts END as duration
from (
select
user,
page,
ts,
LAG(ts, 1, 0) OVER(PARTITION BY user ORDER BY ts DESC) as finish
from ( -- below is sample data
select user, page, type, ts from
(select 1 as user, 1 as page, 1 as ts, 'page' as type),
(select 1 as user, 2 as page, 3 as ts, 'page' as type),
(select 1 as user, 3 as page, 6 as ts, 'page' as type),
(select 1 as user, 4 as page, 9 as ts, 'other' as type),
(select 1 as user, 5 as page, 12 as ts, 'other' as type),
(select 2 as user, 1 as page, 1 as ts, 'page' as type),
(select 2 as user, 2 as page, 2 as ts, 'page' as type),
(select 2 as user, 3 as page, 10 as ts, 'page' as type)
)
where type = 'page'
)
order by user, ts
null持续时间适用于最后一页
答案 2 :(得分：0)
谢谢米哈伊尔，但它仍然很模糊。
是这样的吗？
myDeclarer如何指定： - 在分区中我正在寻找hits.hitNumber - 1为hits.type =＆＃39; PAGE＆＃39;只要 ？ - 如何加入另一个变量（visitNumber，fullvisitorId，...）？
由于