What does "open_source" token means?


(rayman-2) #1

Hi,
I am reading ES documentation.

Trying to understand the finding_multiple_exact_values
at: http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_finding_multiple_exact_values.html

I didnt understand what "open_source" stands for at:

{ "tags" : ["search"] }

{ "tags" : ["search", "open_source"] }
http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_finding_multiple_exact_values.html#CO44-1

I understand that's a token type or?? maybe I am missing something basic
for my understanding. Anyone could fill that gap for me?

Thanks,
ray.

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(Ivan Brusic) #2

"open_source" is just an example value in the tags array.

The example has two documents, both with just a single field called tags.
The first one has one value "search" and the second one has two values
(both in the same field, therefore it is an array) "search" and
"open_source"

Document 1
{ "tags" : ["search"] }

Document 2
{ "tags" : ["search", "open_source"] }

Multiple values in the same field can be thought of as an array, but Lucene
underneath considers them to be two terms in the inverted index, both
pointing at the same document.

Cheers,

Ivan

On Sun, Jun 29, 2014 at 10:17 AM, rayman idan.frid@gmail.com wrote:

Hi,
I am reading ES documentation.

Trying to understand the finding_multiple_exact_values at:
http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_finding_multiple_exact_values.html

I didnt understand what "open_source" stands for at:

{ "tags" : ["search"] }

{ "tags" : ["search", "open_source"] }
http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_finding_multiple_exact_values.html#CO44-1

I understand that's a token type or?? maybe I am missing something basic
for my understanding. Anyone could fill that gap for me?

Thanks,
ray.

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(system) #3