Multi word partial search

Question

i am very new to the Elastic search. Like to know how to search partial multi word search. \

for ex : My document { "title":"harry porter" } i need this document with search with following string 1.)har por same as sql query (select * from books where title like '%har%' or title like '%por%')

Be aware that Elasticsearch is nothing like others databases, not only because it's NoSql, but also because it is mainly a search engine. I suggest that you get familiar with Elasticsearch's core concepts ([this](https://www.elastic.co/guide/en/elasticsearch/guide/2.x/intro.html)) before starting to use it: Elasticsearch is designed for full text search which is similar but in many ways more powerful than what you are asking here — Mario Trucco, May 07 '17 at 07:21
Its one of my search use case. any way i got a solution using 'ngram ' — Gibs mds, May 15 '17 at 06:28

score 0 · Answer 1 · edited May 23 '17 at 12:18

Using a completion suggester will provide most of the feature you want. It will find words starting with an arbitrary string, like "har" or "por".

Check out this question for a full example on how to set up a completion suggester.

As described in the documentation, you can achieve multi-word search (i.e. returning "harry horter" from a search for "por") by creating your analyzer with the option preserve_position_increments set to false

PUT books
{
    "mappings": {
        "book" : {
            "properties" : {
                "suggest" : {
                    "type" : "completion",
                    "preserve_position_increments": false
                },
                "title" : {
                    "type": "keyword"
                }
            }
        }
    }
}

thanks, the doc bit confusing , is possible to show me the search request. — Gibs mds, May 07 '17 at 06:25

score 0 · Answer 2 · answered Sep 11 '18 at 17:42

0

Refer to this : Edge NGram Tokenizer

This helps in partial multi-word search (similar to autocomplete suggestions). Hope this helps!

answered Sep 11 '18 at 17:42

Partha

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Multi word partial search

2 Answers2