CODEWITHSUNDEEP
javalucene
Paul Taylor
Paul Taylor

Reputation: 13110

is Lucene + classic query search syntax same as using AND

A Lucene query of the form 

field1:+"term1" field2:+"term2"

seems to be equivalent to 

field1:"term1" OR field2:"term2"

I expected it to be equivalent to 

field1:"term1" AND field2:"term2"

(i.e for my particular query on my database query 1 and 2 are returning 10 records, whereas query 3 is returning 6 records, I would expect query 2 to only return six records)

Im aware that if there is no OR or AND it defaults to OR but I thought the + means that term has to match, otherwise what is the point of the + What am i misunderstanding ?

Upvotes: 3

Views: 85

Answers (1)

femtoRgon
femtoRgon

Reputation: 33341

That query doesn't look equivalent to either of those, to me.

field1:+"term1" field2:+"term2"

Is just invalid syntax, and the standard QueryParser does kick out a ParseException for it (maybe your code is swallowing the exception silently or something?).

It should be:

+field1:"term1" +field2:"term2"

Upvotes: 2

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