Hello A question on typo correction as some behaviours are q typesense #community-help

Hello ! A question on typo correction, as some beh...

Yoann Couble

06/02/2023, 8:05 AM

Hello ! A question on typo correction, as some behaviours are quite mysterious to me. I have a document with a field name = "La Bouitte". With typo params in the search set to default and exhaustive search set to

true

, the typo correction works differently depending on the position of the typo: • q="bouite" (one t) --> doc is found • q="bouittee" (extra e) --> doc is found • q="boutte" (no i) --> doc is found • q="boitte" (missing u) --> doc is found • q="buitte" (missing o) --> doc is not found
• q="ouitte" (missing b) -->

doc is not found

• q="ouittee" (missing b, extra e) --> doc is found (I guess because

min_len_2typo

defaults to 2 So inserting a char earlier in the word seems to be harder to correct, why is that so ?

Kishore Nallan

06/02/2023, 8:11 AM

👋 When you mean by

doc is not found

do you mean to say that you get no results at all or that you get other results?

Yoann Couble

06/05/2023, 8:05 AM

Hello, yes, no result at all

Yoann Couble

06/05/2023, 8:05 AM

we made sure that there were no other docs matching these names

Kishore Nallan

06/05/2023, 1:45 PM

Would you be able to share a sample dataset where this issue exists?

Kishore Nallan

06/05/2023, 1:45 PM

Also please tell me the version of Typesense you are using.

Yoann Couble

06/06/2023, 12:09 PM

v0.24.1

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# Example doc
{
  "id": "16421",
  "name": ["la bouitte"],
  "resort": [419,422]
}

Search Request

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{
  "searches": [
    {
      "query_by": "name",
      "collection": "prod__location",
      "filter_by": "resort:=[419]",
      "q": "buitte",
      "exhaustive_search": true
    }
  ]
}

Yoann Couble

06/06/2023, 12:20 PM

Create

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curl --location '<http://localhost:8108/collections>' \
--header 'Content-Type: application/json' \
--header 'X-TYPESENSE-API-KEY: xyz' \
--data '{
         "name": "test",
         "fields": [
            {"name": "name", "type": "string[]"},
            {"name": "resort", "type": "int32[]", "facet": true}
         ]
       }'

Insert

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curl --location '<http://localhost:8108/collections/test/documents>' \
--header 'Content-Type: application/json' \
--header 'X-TYPESENSE-API-KEY: xyz' \
--data '{
    "name": ["la bouitte"],
  "resort": [419,422]
}'

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curl --location --globoff '<http://localhost:8108/collections/test/documents/search?q=buitte&query_by=name&filter_by=resort%3A%3D[419]>' \
--header 'X-TYPESENSE-API-KEY: xyz'

Response:

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{
  "facet_counts": [],
  "found": 0,
  "hits": [],
  "out_of": 1,
  "page": 1,
  "request_params": {
    "collection_name": "test",
    "per_page": 10,
    "q": "buitte"
  },
  "search_cutoff": false,
  "search_time_ms": 0
}

Yoann Couble

06/06/2023, 12:23 PM

The search works for

buitte l

and for

la buitte

but (as expected, since

has no exact match) not for

l buitte

Kishore Nallan

06/06/2023, 12:23 PM

Thanks, will investigate and get back to you.

🙏 1

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