Re: Missing Features - AndMaybe and Otherwise
Solr uses Lucene- everything I described in Solr with text queries. - Original Message - | From: "Ramzi Alqrainy" | To: solr-user@lucene.apache.org | Sent: Tuesday, September 4, 2012 12:30:44 AM | Subject: Re: Missing Features - AndMaybe and Otherwise | | Many thanks for your email, but what about Solr? and how we can | handle my | case ? | | Thanks, | | | | -- | View this message in context: | http://lucene.472066.n3.nabble.com/Missing-Features-AndMaybe-and-Otherwise-tp4005059p4005163.html | Sent from the Solr - User mailing list archive at Nabble.com. |
Re: Missing Features - AndMaybe and Otherwise
Many thanks for your email, but what about Solr? and how we can handle my case ? Thanks, -- View this message in context: http://lucene.472066.n3.nabble.com/Missing-Features-AndMaybe-and-Otherwise-tp4005059p4005163.html Sent from the Solr - User mailing list archive at Nabble.com.
Re: Missing Features - AndMaybe and Otherwise
> AndMaybe(a, b)* Lucene does not really have booleans. Instead, it has plus, minus, and neither. Plus means "this term has to be in", minus means "this term cannot be in" and neither means "maybe". This means "A has to be in the document, and the document scores higher if B is in it": "+A B". What you describe is "A AND MAYBE B". "Plus A space B" does this. MAYBE is not in the AND/OR/NOT syntax. > *Otherwise(a, b)* I'm not sure that "if-then" can be done. - Original Message - | From: "Ramzi Alqrainy" | To: solr-user@lucene.apache.org | Sent: Monday, September 3, 2012 7:36:06 AM | Subject: Missing Features - AndMaybe and Otherwise | | Hi, | | I would like to help me for certain problem. I have encountered a | problem in | task I think if you implement the below functions/conditions, you | will help | us for many issues. | | *AndMaybe(a, b)* | Binary query takes results from the first query. If and only if the | same | document also appears in the results from the second query, the score | from | the second query will be added to the score from the first query. | | *Otherwise(a, b)* | A binary query that only matches the second clause if the first | clause | doesn’t match any documents. | | | My problem is : | | I have documents and I do group by on certain field (e.g. Field1). I | want | to get documents with Field2 is [3 or 9 or 12] if exist, otherwise | get any | document. please see the below example. | | | D1 :--- | Field1 : 1 - | Field2 : 3 -> D1 (group by on field1 and | field2 is | 3) | - | D2: --- | Field1 : 1 | Field2 : 4 | | | D3:--- | Field1 : 2 - | Field2 : 5--> any document D3 or D4 | - | D4:--- | Field1 : 2 | Field2 : 7 | | I want to get the results like below | D1(Mandatory) | (D3 OR D4) | | | | -- | View this message in context: | http://lucene.472066.n3.nabble.com/Missing-Features-AndMaybe-and-Otherwise-tp4005059.html | Sent from the Solr - User mailing list archive at Nabble.com. |
Missing Features - AndMaybe and Otherwise
Hi, I would like to help me for certain problem. I have encountered a problem in task I think if you implement the below functions/conditions, you will help us for many issues. *AndMaybe(a, b)* Binary query takes results from the first query. If and only if the same document also appears in the results from the second query, the score from the second query will be added to the score from the first query. *Otherwise(a, b)* A binary query that only matches the second clause if the first clause doesn’t match any documents. My problem is : I have documents and I do group by on certain field (e.g. Field1). I want to get documents with Field2 is [3 or 9 or 12] if exist, otherwise get any document. please see the below example. D1 :--- Field1 : 1 - Field2 : 3 -> D1 (group by on field1 and field2 is 3) - D2: --- Field1 : 1 Field2 : 4 D3:--- Field1 : 2 - Field2 : 5--> any document D3 or D4 - D4:--- Field1 : 2 Field2 : 7 I want to get the results like below D1(Mandatory) (D3 OR D4) -- View this message in context: http://lucene.472066.n3.nabble.com/Missing-Features-AndMaybe-and-Otherwise-tp4005059.html Sent from the Solr - User mailing list archive at Nabble.com.
