String filter not working with pluginQPS

[FabioNappi]

Describe the bug

I have an Orama db with a string property in its schema and the QPS plugin enabled. When I perform a search with an array valued where clause on the string property (just like the second example in the docs) it finds no documents.

To Reproduce

1. initialize orama with QPS plugin

create({
  schema: {
    title: 'string',
    category: 'string',
  },
  plugins: [pluginQPS()],
})

2. insert documents
3. search documents in the db

orama.search(db, {
  term: 'Harry',
  where: {
    category: ['movie', 'book']
  }
})

4. the result is no documents found

Expected behavior

I expect to actually find documents with category = 'movie' OR category = 'book', but got none.

Environment Info

OS: MacOS 15.4
Node: 22.14.0
Orama: 3.1.6

Affected areas

Search

Additional context

No response

[micheleriva]

@allevo any idea?

[allevo]

Hi! No idea. Can you also give us some documents you insert?

[FabioNappi]

Hello! Here it is a complete code snippet example to reproduce the bug. If you try to comment the plugin line, the search will actually return both documents

import {create, insertMultiple, search} from '@orama/orama'
import {pluginQPS} from '@orama/plugin-qps'

const db = create({
  schema: {
    title: 'string',
    category: 'string',
  },
  plugins: [pluginQPS()],
})

await insertMultiple(db, [
  {
    title: `Harry Potter and the Philosopher's Stone`,
    category: 'movie',
  },
  {
    title: 'Harry Potter and the Chamber of Secrets',
    category: 'book',
  },
])

const found = await search(db, {
  term: 'Harry',
  where: {
    category: ['movie', 'book'],
  },
})

console.log(found)

[FabioNappi]

@allevo is there any news?