第一天安装程序的原始BigQuery日志数据 [英] Raw BigQuery Log-data for 1st Day Installers

问题描述

我对StandardSQL相当陌生，并且希望为在给定日期（2017年6月1日）安装的用户以及安装日期（D0-D20）之后的第一个3周会话数据导出Raw BigQuery日志数据， 。

pre $ #StandardSQL
SELECT user_dim.first_open_timestamp_micros，user_dim.app_info.app_instance_id，event_dim.date，event_dim.name， event_dim.timestamp_micros，event_dim.previous_timestamp_micros
FROM`your_table_id.app_events_ *`
WHERE _TABLE_SUFFIX'20170601'与'20170621'AND
（SELECT user_dim.first_open_timestamp_micros
FROM UNNEST（user_dim ）AS用户
WHERE user.first_open_timestamp_micros BETWEEN 1496275200000 AND 1496361600000）;


我只得到以下输出：UNNEST中引用的值必须是数组。UNNEST包含STRUCT类型的表达式。我最初的问题是：如何将其转换为数组，以给我适当的输出？

在Mikhail的回答后更新：

执行了以下查询，但没有提供任何数据作为输出。我知道应该有应该显示的用户，因为如果我预览实际表格（查看屏幕截图），我会看到表中存在的值应该是输出的一部分（但不是）。

  #standardSQL 
 SELECT 
 user_dim.first_open_timestamp_micros，
 user_dim.app_info.app_instance_id，
 event.date ，event.name，
 event.timestamp_micros，
 event.previous_timestamp_micros 
 FROM`your_table_id.app_events_ *`，UNNEST（event_dim）AS事件
 WHERE _TABLE_SUFFIX BETWEEN'20170601'AND' 20170621'
和user_dim.first_open_timestamp_micros BETWEEN 1496275200000和1496361600000 
 LIMIT 10; 
  

实际表格的屏幕截图：

转换时间戳，表明上面的会话确实应该显示在2 user_dim.first_open_timestamp_micros-results，但不... ...

1496275200000转换：
假设此时间戳以毫秒为单位：
GMT：2017年6月1日星期四12:00:00 AM
您的时区：2017年6月1日星期四2:00:00上午GMT + 02：00 DST

1496353126947000转换：
假设此时间戳为微秒（1 / 1,000,000秒）：
GMT：2017年6月1日星期四9： 38：46.947 PM
您所在的时区：2017年6月1日星期四11：38：46.947 PM GMT + 02：DST

1496361600000转换：
假设这个时间estamp以毫秒为单位：
GMT：2017年6月2日星期五12:00:00 AM
您所在的时区：2017年6月2日星期五上午2:00:00 GMT + 02：00 DST

问题：

为什么该值不会显示在输出中？

解决方案

请尝试以下内容

我假设 - user_dim 是记录，并且 event_dim 是记录，重复

$ b

#standardSQL
SELECT
user_dim.first_open_timestamp_micros，
user_dim.app_info.app_instance_id，
event.date，event.name，
event.timestamp_micros，
event.previous_timestamp_micros
FROM`your_table_id.app_events_ *`，UNNEST（event_dim）AS事件
WHERE _TABLE_SUFFIX BETWEEN'20170601'和'20170621'
AND user_dim.first_open_timestamp_micros BETWEEN 1496275200000 AND 1496361600000


I am fairly new to StandardSQL, and wanted to export Raw BigQuery log-data for users that installed on a given date (1st June 2017) with first 3-week's session data on and after install-date (D0-D20).

    #StandardSQL
    SELECT user_dim.first_open_timestamp_micros, user_dim.app_info.app_instance_id, event_dim.date, event_dim.name, event_dim.timestamp_micros, event_dim.previous_timestamp_micros
    FROM `your_table_id.app_events_*`
    WHERE _TABLE_SUFFIX BETWEEN '20170601' AND '20170621' AND
    (SELECT user_dim.first_open_timestamp_micros
    FROM UNNEST(user_dim) AS user
    WHERE user.first_open_timestamp_micros BETWEEN 1496275200000 AND 1496361600000);

I am only getting the following output: "Values referenced in UNNEST must be arrays. UNNEST contains expression of type STRUCT". My initial question was: How would I convert this into an array, to give me the appropriate output ?

Update after Mikhail's answer:

The following query executed, but did not give any data as output. I know there should be users that should show up, because if I preview the actual table (view screenshot), I see values that exist in the table that should be part of the output (but is not).

#standardSQL
SELECT 
  user_dim.first_open_timestamp_micros, 
  user_dim.app_info.app_instance_id, 
  event.date, event.name, 
  event.timestamp_micros, 
  event.previous_timestamp_micros
FROM `your_table_id.app_events_*`, UNNEST(event_dim) AS event
WHERE _TABLE_SUFFIX BETWEEN '20170601' AND '20170621' 
AND user_dim.first_open_timestamp_micros BETWEEN 1496275200000 AND 1496361600000
LIMIT 10;

Screenshot of the actual table:

Converting the timestamps, shows that the above session should indeed show up in the middle of the 2 user_dim.first_open_timestamp_micros-results, but does not...

1496275200000 Converted: Assuming that this timestamp is in milliseconds: GMT: Thursday, June 1, 2017 12:00:00 AM Your time zone: Thursday, June 1, 2017 2:00:00 AM GMT+02:00 DST

1496353126947000 Converted: Assuming that this timestamp is in microseconds (1/1,000,000 second): GMT: Thursday, June 1, 2017 9:38:46.947 PM Your time zone: Thursday, June 1, 2017 11:38:46.947 PM GMT+02:00 DST

1496361600000 Converted: Assuming that this timestamp is in milliseconds: GMT: Friday, June 2, 2017 12:00:00 AM Your time zone: Friday, June 2, 2017 2:00:00 AM GMT+02:00 DST

Question:

• Am I missing something, why would that value not show up in the output ?

解决方案

Try below
I assumed - user_dim is record, and event_dim is record, repeated

#standardSQL
SELECT 
  user_dim.first_open_timestamp_micros, 
  user_dim.app_info.app_instance_id, 
  event.date, event.name, 
  event.timestamp_micros, 
  event.previous_timestamp_micros
FROM `your_table_id.app_events_*`, UNNEST(event_dim) AS event
WHERE _TABLE_SUFFIX BETWEEN '20170601' AND '20170621' 
AND user_dim.first_open_timestamp_micros BETWEEN 1496275200000 AND 1496361600000

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