Match records based on keywords

[maxkadel]

User story

A number of selectors would like to be able to match records not only on keywords in subject fields, but also in other fields, and allow use of wildcards.

Concrete example

I very much would need a general keyword search, since as usual area studies (as well as period studies) are difficult to catch otherwise. The products we have in the past always could set a range of keywords such as chin, japan etc, in title and notes, not just 6xx; and that’s how we get slips from elsewhere as well.

Acceptance criteria

• [ ] Selectors can provide a list of keywords to match in fields other than subject fields, and return matching monographs in the CSV
• [ ] Selectors can provide keywords with wildcards and return matching monographs in the CSV

Implementation notes, if any

• It is possible this would require indexing fields in order to make it performant / scalable, which would be a big change.

[mzelesky]

From the feedback from Martin quoted above, I take it to mean the following fields: 1XX 2XX 5XX 7XX 8XX

Can you say more about requiring indexing of fields to make it performant? It sounds like that would be a lot of overhead vs. letting ruby-marc iterate through the fields.