Get count by certain field based on a sub query

Elastic Stack Elasticsearch
1

Guys,
I just successfully imported my data to ES, e,g. It has looks like this:
"activity": 'viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":""
,

"activity": 'campaign_viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":"my_campaign"

As you can see, the two entries has the same session id, and since the
second entry has a campaign_id, i will assume the first activity(viewed) is
also generated from the campaign.
So how can i do count like:
(count the activities that are generated from campaign):

count(activity)
where sessionId in (select sessionid from index where
campaign_id="m_campaign") ?

Thanks much!
Chen

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2

I don't think this is possible. To me the way to solve this kind of issues
would be to reindex events as soon as you know their campain_id.

On Thu, Jan 23, 2014 at 2:04 AM, Chen Wang chen.apache.solr@gmail.comwrote:

Guys,
I just successfully imported my data to ES, e,g. It has looks like this:
"activity": 'viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":""
,

"activity": 'campaign_viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":"my_campaign"

As you can see, the two entries has the same session id, and since the
second entry has a campaign_id, i will assume the first activity(viewed) is
also generated from the campaign.
So how can i do count like:
(count the activities that are generated from campaign):

count(activity)
where sessionId in (select sessionid from index where
campaign_id="m_campaign") ?

Thanks much!
Chen

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Adrien Grand

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3

I actually have a feeling that it might be possible by the new aggregation
in ES 1.0, my thoughts are:

  1. make the campaign_id field a integer value
  2. group by all session data, doing the count, and also sum the campaign_id
    field.
  3. filter through the group with sum(campaign_id) != 0, (meaning this
    session is from campaign), then do a sum on all the filtered group.

But how can I implement this in ES query...
Chen

On Thu, Jan 23, 2014 at 1:23 PM, Adrien Grand <
adrien.grand@elasticsearch.com> wrote:

I don't think this is possible. To me the way to solve this kind of issues
would be to reindex events as soon as you know their campain_id.

On Thu, Jan 23, 2014 at 2:04 AM, Chen Wang chen.apache.solr@gmail.comwrote:

Guys,
I just successfully imported my data to ES, e,g. It has looks like this:
"activity": 'viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":""
,

"activity": 'campaign_viewed',
"sessionId": "000000143198107b3fe510b041138cd33fdd9252aab9808c",
"campaign_id":"my_campaign"

As you can see, the two entries has the same session id, and since the
second entry has a campaign_id, i will assume the first activity(viewed) is
also generated from the campaign.
So how can i do count like:
(count the activities that are generated from campaign):

count(activity)
where sessionId in (select sessionid from index where
campaign_id="m_campaign") ?

Thanks much!
Chen

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Adrien Grand

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