[SOLR-11244] Query DSL for Solr

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.1
• Assignee: Cao Manh Dat
• Reporter: Cao Manh Dat
• Created: 16/Aug/17 10:55
• Updated: 21/Nov/19 00:41
• Resolved: 05/Sep/17 16:49

Description

It will be great if Solr has a powerful query DSL. This ticket is an extension of http://yonik.com/solr-json-request-api/.

Here are several examples of Query DSL

curl -XGET http://localhost:8983/solr/query -d '
{
    "query" : {
        "lucene" : {
            "df" : "content",
            "query" : "solr lucene"
        }
    }
}

the above example can be rewritten as (because lucene is the default qparser)

curl -XGET http://localhost:8983/solr/query -d '
{
    "query" : "content:(solr lucene)"
}

more complex example:

curl -XGET http://localhost:8983/solr/query -d '
{ 
    "query" : {
        "boost" : {
            "query" : {
                "lucene" : {
                    "q.op" : "AND",
                    "df" : "cat_s",
                    "query" : "A"
                }
            }
            "b" : "log(popularity)"
        }
    }
}

I call it Json Query Object (JQO) and It defined as :

• It can be a valid query string for Lucene query parser, for example : "title:solr"
• It can be a valid local parameters string, for example : " {!dismax qf=myfield}

  solr rocks"

• It can be a json object with structure like this

  {
    "query-parser-name" : {
       "param1" : "value1",
       "param2" : "value2",
       "query" : <JQO>,
       "another-param" : <JQO>
    }
  }
  

  Therefore the above dismax query can be rewritten as ( be noticed that the query argument in local parameters, is put as value of query field )

  {
    "dismax" : {
       "qf" : "myfield"
       "query" : "solr rocks"
    }
  }
  

I will attach an HTML, contain more examples of Query DSL.

Issue Links

• duplicates: SOLR-4351 JSON QParser integration
• duplicates: SOLR-9733 JSON Request filter param should support queries in JSON syntax
• is related to: SOLR-11295 JSON Qparser
• is related to: SOLR-9683 include/exclude filters by tag
• is related to: SOLR-9682 Ability to specify a query with a parameter name (in facet filter)
• is related to: SOLR-9685 tag a query in JSON syntax
• is related to: SOLR-10144 redesign block-join support
• relates to: SOLR-13808 Query DSL should let to cache filter

Sub-Tasks

• mm (min should match) param for {!bool} query parser: Closed
• CoveringQuery support via {!bool should=only should=only ... mm=clausesReqField}: Open