[SOLR-13863] payload query function support for string encoded payloads (delimited_payloads_string)

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: query parsers, search, SearchComponents - other
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Vincenzo D'Amore
• Created: 23/Oct/19 15:28
• Updated: 11/Jan/22 16:22

Description

After a talk with Erick Erickson I was asked to incorporate this in Solr.

https://lucene.472066.n3.nabble.com/Solr-Payload-example-td4451173.html

I write here a simplified version of the problem in order to be easier to explain:

I have a problem like the per-store pricing problem but payload function handles only numbers.

Stores can also be in different countries, for example would be useful having with the price also the currency and other attributes related to the store.

We could have add support for string encoded payloads fixing function query named payload.

Example document:

{
  "id":"my sample doc",
  "currencyPayload":[
    "store1|EUR",
    "store1|USD",
    "store3|GBP"
  ]
}

Querying Solr with

fl=payload(currencyPayload,store3)

would generate a response like the following:

{
  "response": {
      "docs":[{
         "id":"my sample doc", 
         "payload(currencyPayload,store3)":"GBP"
      }]

    }
}

And executing `payload(payloadCurrency,store2)` returns `EUR`, and so on.

You can use `payload` even as sorting function.

sort=payload(payloadField,value) asc

 

Issue Links

• links to: GitHub Pull Request #1034