Searching with wildcard

[Fifciu]

What is the motivation for adding / enhancing this feature?

Let's imagine we have products like:

flame
flamingo

After I type: flam in the search I am receiving only: flame.

I want both. So I should use something like *flam*. However, multi_match does not support wildcards. So, I've used query_string instead of that as it allows wildcards. But according to that: https://stackoverflow.com/questions/16933800/elasticsearch-how-to-use-multi-match-with-wildcard

query_string is a slow solution. It would be better to use nGram Filter while indexing.

What are the acceptance criteria

• [ ] Use query_string instead of multi_match for search with wildcards at the beginning and the end
• [ ] Prepare nGram filter PoC for better search
• [ ] Prepare nGram filter for Indexer

Can you complete this feature request by yourself?

• [ ] YES
• [x] NO

Which Release Cycle state this refers to? Info for developer.

Pick one option.

• [x] This is a normal feature request. This should be available on https://test.storefrontcloud.io and then after tests this can be added to next Vue Storefront version. In this case Developer should create branch from develop branch and create Pull Request 2. Feature / Improvement back to develop.
• [ ] (Pick this option only if you're sure) This is an important improvement request for current Release Candidate version on https://next.storefrontcloud.io and should be placed in next RC version. In this case Developer should create branch from release branch and create Pull Request 3. Stabilisation fix back to release.
• [ ] (Pick this option only if you're sure) This is a critical improvement request for current Stable version on https://demo.storefrontcloud.io and should be placed in next stable version. In this case Developer should create branch from hotfix or master branch and create Pull Request 4. Hotfix back to hotfix.

[clinton-origin]

@Fifciu Can you explain how you went about getting the search to use query_string? Looking to set this up but not sure where to start.