Some questions about queries - Githubissues

mosuka / blast

Blast is a full text search and indexing server, written in Go, built on top of Bleve.

Apache License 2.0

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Some questions about queries #143

Open PabloCastellano opened 4 years ago

PabloCastellano commented 4 years ago

Hello. I'm testing blast to check if it could replace elasticsearch for my use case.

However I find the examples very brief and don't understand the following query example.

https://github.com/mosuka/blast/blob/bfa81067715553dc982360ea584726e3331ba2a8/examples/example_search_request.json#L1-L14

After reading this example, I have the following questions.

What does _all means in the query field?
What does the plus sign before _all means?
How can I search inside a particular field?
What happens if I index a type that is not defined in the mapping?
How can I search and filter by the _type field?

Can you give me some pointers? I'll be happy to contribute by documenting these answers.

fahmifan commented 3 years ago

AFAIK, you could check blevesearch docs https://blevesearch.com/docs/Query-String-Query/, from your example, +_all:search it will match string search to all fields in the mapping.