"Wildcard always applied" vs. partial indexing

[Clea Mahoney]

Hi,

I'm a non-techy person who is helping my organization set up ResourceSpace, mainly to serve as an image repository for marketing purposes.

We recently added the "$wildcard_always_applied" to our config but I was under the impression that this would only apply the wildcard to the end of a term, e.g. animal = animals. It seems like it's working partially, e.g. a search for "nimal" returns nada, which is perfect.

However, other search terms seem to apply the wildcare anywhere - a search for "air" returns "Cairns" (a photographer whose work we feature quite heavily, so this leads to a mass of (basic) search results. Is there a way I can limit where the wildcard is applied?

And what (if there is one) is the difference between setting up this wildcard config v. just turning on partial indexing on the keywords field?

Many thanks,
Clea

[Allison M Stec]

I can tell you that partial indexing will result in searches for "air" returning "Cairns". So, partial indexing is, as you put it, like putting the wildcard at the beginning and/or end of a search string.

I can't offer insight to the wildcard use, but maybe someone else will chime in.

Also, if you could tell us what the end goal is, perhaps someone can provide a solution.

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[Dan Huby]

Hi,

"air" should not match "cairns" when $wildcard_always_applied is switched on. It only expands to the right as you point out with "nimals" not matching "animals".

Are you sure "air" or some other word starting with "air" doesn't exist in those records? 

I would strongly advise against using partial indexing for anything other than very specific cases where there's a small string entered in to a field (such as a product code) because it hugely expands the number of keywords indexed and will slow your system down if used for general text.

Dan

[Clea Mahoney]

Hi Allison and Dan,

Thanks very much for your replies. I wonder if I need to reindex - perhaps I inadvertently forgot to do so after turning partial indexing back off again. To confirm, the "air" = "Cairns" results don't have any fields containing words starting with "air." I may have tried to reindex but left the site before the work had finished, and perhaps that's why the wildcard functionality isn't working as expected yet.

I'll give that a try and report back, as the "only expands to the right" function is exactly what we're trying to achieve.

Best wishes,

Clea

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[Clea Mahoney]

Bingo - I still had partial indexing on in keywords (d'oh!) and reindexing fixed it. Thanks again for your help, guys.

-Clea

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