Hi David,
First of all thanks.
Basically what i wanted is only search a particular field that have a prefix of eg : 'A' in 1st letter.
More example :
{
"query" : {
"prefix" : {
"DISPLAY_NAME" : "a"
}}
}
Result expected to return is :
- "DISPLAY_NAME": "Adele Sings", //YES
2)"DISPLAY_NAME": "Alex Dance", // YES
3)"DISPLAY_NAME": "Ndek Te Angenan (Lombok)", //NO
4)"DISPLAY_NAME": "Ndek Ae Tngenan (Lombok)", //NO
5)"DISPLAY_NAME": "NAek ee Tngenan (Lombok)", //NO
More comment inlined in red in your previous replies.
Thanks.
On Fri, Sep 13, 2013 at 3:23 PM, David Pilato david@pilato.fr wrote:
You change the mapping using PUT Mapping API: Elasticsearch Platform — Find real-time answers at scale | Elastic
See also: Elasticsearch Platform — Find real-time answers at scale | Elastic and Elasticsearch Platform — Find real-time answers at scale | Elastic
My bet here (I don't have much info about your use case) is that you somehow need a Simple Analyzer Elasticsearch Platform — Find real-time answers at scale | Elastic
This doesn't explain how i gonna apply the analzyer to the field nor how to create an analyzer.
You can use multifield as well to keep your current mapping as is and add another one: Elasticsearch Platform — Find real-time answers at scale | Elastic
3 choices from there:
Delete your index, Reindex: you will have a fresh clean new index (you don't need multi field)
This might not be my best choice due to developers need the data.
Update the mapping, Reindex (aka Update each document): each document will have a new version
Doing this will not delete all the current documents and it will replace each at a time ?
Update the mapping: only new indexed documents will benefit from this new analyzer
Not smtg i wanted to 
Does it help?
--
David Pilato | Technical Advocate | Elasticsearch.com
@dadoonet | @elasticsearchfr | @scrutmydocs
Le 13 sept. 2013 à 09:15, chee hoo lum cheehoo84@gmail.com a écrit :
How do i change the mapping ? and do i need to delete and reindex ? because i have millions of records there ?
On Fri, Sep 13, 2013 at 2:56 PM, David Pilato david@pilato.fr wrote:
It's because you are using default analyzer which break phrases into words then index them.
You need to change your mapping here.
--
David 
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs
Le 13 sept. 2013 à 08:48, cyrilforce cheehoo84@gmail.com a écrit :
Hi All,
I m trying to build a query to search all documents starts with single alphabets eg : A
{
"query" : {
"prefix" : {
"DISPLAY_NAME" : "a"
}}
}
However the result returned is
"DISPLAY_NAME": "Ndek Te Angenan (Lombok)",
It seems like it is search every single words rather than the whole sentence.
Anyway that i could search the document that only have single occurence of 'A' in the 1st letter ?
Thanks,.
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Regards,
Chee Hoo
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Regards,
Chee Hoo
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