Search Exact and partial match

#1

Hi Support,

I have keyword like: 'ABC - DEF', 'ABC DEF', 'ABC is there any combination with DEF'.

Exact Match : "ABC-DEF" - Its gives perfect result ("ABC-DEF").
Partial Match: "ABC-DE" - its gives more result (all 3 document). Last one should not come in search.

Can you please help me on above query?

How can get perfect result?

Thanks

#2

Could you provide a full recreation script as described in About the Elasticsearch category. It will help to better understand what you are doing. Please, try to keep the example as simple as possible.

A full reproduction script will help readers to understand, reproduce and if needed fix your problem. It will also most likely help to get a faster answer.

#3

Hi David,

Thanks for reply.

What type of full reproduction script you want? you mean to say mappings or settings or content?

DELETE testindex

PUT testindex

PUT testindex/_mapping
{
  "properties": {
    "filename": {
      "type": "text",
      "fields": {
        "keyword": {
          "type": "keyword",
          "ignore_above": 256
        }
      }
    }
  }
}
POST testindex/_doc
{
  "filename": "704140-0001 FIT TO P1.pdf"
}
POST testindex/_doc
{
  "filename": "704140 FIT TO P4 MARCH 1994 DATA SUBMITTLE -0051.pdf"
}
POST testindex/_doc
{
  "filename": "704140 FIT TO P1 OCTOBER 2003 POINT OF FIT -0001.pdf"
}


POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:("704140"))')"""
}

it gives perfect exact match result.

POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:(70414*))')"""
}

it gives partial match result for single word.

POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:("704140-0001"))')"""
}

it gives perfect exact match result.

POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:(704140-00*))')"""
}

it gives no result.

I want partial match search. how it is possible?

Can you please help me?

Thanks

#4

Any hope?

#5

Here is a way to fix it. Note that with this analyzer it's now case sensitive.
If you don't want that, you'll need to provide a custom analyzer.
Also 704140-0001 won't match anymore when you query with 704140.

DELETE testindex
PUT testindex
{
  "mappings": {
    "properties": {
      "filename": {
        "type": "text",
        "analyzer": "whitespace"
      }
    }
  }
}
POST testindex/_doc
{
  "filename": "704140-0001 FIT TO P1.pdf"
}
POST testindex/_doc
{
  "filename": "704140 FIT TO P4 MARCH 1994 DATA SUBMITTLE -0051.pdf"
}
POST testindex/_doc
{
  "filename": "704140 FIT TO P1 OCTOBER 2003 POINT OF FIT -0001.pdf"
}


POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:("704140"))')"""
}
POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:(70414*))')"""
}
POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filename:(704140-00*))')"""
}

For more information, use the _analyze API to understand how everything is working behind the scene.

#6

Thanks David,

Actually, i want to use filename column for full text search and keyword search.

Thanks

#7

Any example of the text you want to search for and the result you want?

#8

Example here :

PUT testindex/_mapping
{
  "properties": {
    "filecontent": {
      "type": "text"
    },
    "filename": {
      "type": "text",
      "fields": {
        "keyword": {
          "type": "keyword",
          "ignore_above": 256
        }
      }
    }
  }
}

POST testindex/_doc
{
  "filename": "704140-0001 FIT TO P1.pdf",
   "filecontent": "This is PO : 000704140"
}
POST testindex/_doc
{
  "filename": "704140 FIT TO P4 MARCH 1994 DATA SUBMITTLE -0051.pdf",
  "filecontent": "This is PO : 704140"
}

POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filecontent:(704140))') """
}

POST _sql?format=txt
{
"query":""" SELECT filename FROM testindex WHERE QUERY('(filecontent:(704140)) OR (filename:(704140))') """
}

Thanks

#9

Hi David,

I have provided example on above reply.
Can you please help me on the same?

Thanks

#10

What do you expect to get back?

#11

Hi David,

I expect that,

  1. When I search document with keyword "704140-0001 FIT TO P1.pdf", it should search in filename(keyword).

  2. When I search document with keyword "704140", it should search in filename(keyword and text).

I have mappings same as above, but my question is only how I search exact and partial search with keyword like "704140-00*".

Its already working in sphinx environment. before turn into elastic search, I want to clear my doubt. it will work or not? if its work then how can achieve?

Thanks