Combination of MultipleCharacterWildcard() with Boost() not possible about examine HOT 4 CLOSED

@Sven883 The error you have added to your issue suggests that the problem with the native query isn't the wildcard boost but a range part of the query. Could you try making a minimal native query which returns an error.

You could start with:

var result = searcher.CreateQuery(IndexTypes.Content).NativeQuery("sfTitle:bedrijfsinformatie*^10.0");

This would make it easier to pin point where the issue lies in the query.

Your raw native query is:

+__NodeTypeAlias:vacancypage +(parentID:[1393 TO 1393]) +(sfTitle:bedrijfsinformatie*^10.0) (sfJobCategories_nodeNames_nl:bedrijfsinformatie*^8.0) (sfAccountName_nodeNames_nl:bedrijfsinformatie*^6.0) (contents_nl:bedrijfsinformatie*^4.0 contents:bedrijfsinformatie*^4.0)

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@nikcio would there be more options when using examine 3 with umbraco 10?
We don't want to switch our queries to nativeQueries.

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@Sven883 My suggestion is to check that the query fails when limited to only one expression or at least finding the minimal query to trigger the issue. This will make it easier to figure out why your query is throwing an error. Hopefully locating the error will make it possible to fix the issue happening in the Boost method you describe.

Note: Please add the version of Examine you're using. Otherwise it's impossible to know where to look for the error 😄

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I would suggest determining the bare minimal query that fails like @nikcio. I would also suggest starting your tests by cloning this repo and trying to write a unit test for this.

On another note, boosting and wildcard combination is not normally allowed by Lucene. More info here https://stackoverflow.com/questions/10352404/lucene-net-boost-not-working-when-using-wildcard

You can also search this repo for SetMultiTermRewriteMethod and you'll see that there is mention of using this already.

In the ErrorCheckingScoringBooleanQueryRewrite it has a description: https://github.com/Shazwazza/Examine/blob/release/3.0/src/Examine.Lucene/Providers/ErrorCheckingScoringBooleanQueryRewrite.cs

This isn't enabled by default but it could be, though you have to cast your queries down to the Lucene classes.

There's also this commented out code here with comments in BaseLuceneSearcher: https://github.com/Shazwazza/Examine/blob/release/3.0/src/Examine.Lucene/Providers/BaseLuceneSearcher.cs#L62

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