eDisMax parser issue running over multiple fields

Nested Queries can specify different query parameters for different parts of the query.

+_query_:"{!edismax mm=75% df=name} Game~ Thrones~ Clash~"
+_query_:"{!edismax mm=70% df=author} George~ R.R.~ Martin~"
+inStock:true

• Nested Queries are specified by using _query_: as the prefix (see references [1], [2]).
• Local Params [3] {! ... }... specify the query parser and its parameters by prefixing the query string.
  • query type [4] eDisMax [5]: {!type=edismax}... or just {!edismax}...
  • minimum [should-term] match (mm) [6]: {!mm=75%}...
  • default field (df) [7]: {!df=author}...
• Requiring both of two subqueries can be specified via either of the following:
  • +query1 +query2
  • query1 AND query2
• Line breaks are for clarity, all lines are within one query parameter (q=).
  • (If multiple q= parameters exist, adding a debugQuery=true parameter shows that only one is parsed.)

Testing

Steps to reproduce test with a local Solr 9, in Cloud Mode for the Schema Designer page:

• Command line: solr-9.0.0/bin/solr start -e cloud
• answer questions until return to command prompt
• In web browser, open Solr Admin: http://localhost:8983/solr/
• On the Schema Designer tab,
• click New Schema
• Name New Schema: eDisMaxTest1
• Copy From: _default
• click Add Schema
• Under Sample Documents, past csv data and clicked Analyze Documents.
• Under Schema Editor, select fields author and name and
• changed type to text_general.
• disabled the [ ] Multi-Valued checkbox.
• clicked Update Schema
• To find URL: from Schema Designer page, open browser F12 debugger,
• enable the Network tab,
• perform a query: from the Query Tester, click RunQuery
• copy the path http://localhost:8983/api/schema-designer/query
• copy the parameters _=1658489222229 and configSet=eDisMaxTest1 (values may differ).

Request: one query string

bash: (\ before newline continues line, omit inside '...')

curl --silent --get localhost:8983/api/schema-designer/query \
  --data-urlencode "_=1658489222229" \
  --data-urlencode "configSet=eDisMaxTest1" \
  --data-urlencode 'q= +_query_:"{!edismax mm=75% df=name} Game~ Thrones~ Clash~" 
                       +_query_:"{!edismax mm=70% df=author} George~ R.R.~ Martin~"
                       +inStock:true' \
  --data-urlencode "sort=books_id asc"

cmd: (^ before newline continues line, even inside '...')

curl --silent --get localhost:8983/api/schema-designer/query ^
  --data-urlencode "_=1658489222229" ^
  --data-urlencode "configSet=eDisMaxTest1" ^
  --data-urlencode 'q= +_query_:"{!edismax mm=75% df=name} Game~ Thrones~ Clash~" ^
                       +_query_:"{!edismax mm=70% df=author} George~ R.R.~ Martin~" ^
                       +inStock:true' ^
  --data-urlencode "sort=books_id asc"

Alternative request: use nested query parameter v=$param refer to other request parameters containing subquery terms.

bash: (\ before newline continues line, omit inside '...')

curl --silent --get localhost:8983/api/schema-designer/query \
  --data-urlencode "_=1658489222229" \
  --data-urlencode "configSet=eDisMaxTest1" \
  --data-urlencode 'q= +_query_:"{!edismax mm=75% df=name v=$qname}"
                       +_query_:"{!edismax mm=70% df=author v=$qauthor}"
                       +inStock:true' \
  --data-urlencode "qname= Game~ Thrones~ Clash~" \
  --data-urlencode "qauthor= George~ R.R.~ Martin~" \
  --data-urlencode "sort=books_id asc"

cmd: (^ before newline continues line, even inside '...')

curl --silent --get localhost:8983/api/schema-designer/query ^
  --data-urlencode "_=1658489222229" ^
  --data-urlencode "configSet=eDisMaxTest1" ^
  --data-urlencode 'q= +_query_:"{!edismax mm=75% df=name v=$qname}" ^
                       +_query_:"{!edismax mm=70% df=author v=$qauthor}" ^
                       +inStock:true' ^
  --data-urlencode "qname= Game~ Thrones~ Clash~" ^
  --data-urlencode "qauthor= George~ R.R.~ Martin~" ^
  --data-urlencode "sort=books_id asc"

Response: two books as desired

{
  ...
  "responseHeader":{
    ...
    "params":{
      "q":" +_query_:\"{!edismax mm=75% df=name v=$qname}\"\n
            +_query_:\"{!edismax mm=70% df=author v=$qauthor}\"\n
            +inStock:true",
      "qauthor":" George~ R.R.~ Martin~",
      "qname":" Game~ Thrones~ Clash~",
      "sort":"books_id asc",
      "configSet":"eDisMaxTest1",
      "wt":"javabin",
      "version":"2",
      "_":"1658489222229"}},
  "response":{"numFound":2,"start":0,"numFoundExact":true,"docs":[
      {
        "name":"Game Thrones Clash",
        "author":"George R.R. Martin",
        ...
        "books_id":553573403,
        "inStock":true},
      {
        "name":"Game Thrones",
        "author":"George Martin",
        ...
        "books_id":553573404,
        "inStock":true}]
  }}

References

[1] Nested Query Parser (Solr Reference Guide / Query Guide / Query Syntax and Parsers / Other Query Parsers) https://solr.apache.org/guide/solr/latest/query-guide/other-parsers.html#nested-query-parser

[2] Nested Queries in Solr https://lucidworks.com/post/nested-queries-in-solr/

[3] Local Params (Solr Reference Guide / Query Guide / Query Syntax and Parsers) https://solr.apache.org/guide/solr/latest/query-guide/local-params.html

[4] Query type short form (Solr Reference Guide / Query Guide / Query Syntax and Parsers / Local Params) https://solr.apache.org/guide/solr/latest/query-guide/local-params.html#query-type-short-form

[5] Extended DisMax (eDisMax) Query Parser (Solr Reference Guide / Query Guide / Query Syntax and Parsers) https://solr.apache.org/guide/solr/latest/query-guide/edismax-query-parser.html

[6] mm (Minimum [Should-term] Match) Parameter (Solr Reference Guide / Query Guide / Query Syntax and Parsers / DisMax Query Parser) https://solr.apache.org/guide/solr/latest/query-guide/dismax-query-parser.html#mm-minimum-should-match-parameter

[7] df [default field] (Solr Reference Guide / Query Guide / Query Syntax and Parsers / Standard Query Parser / Standard Query Parser Parameters) https://solr.apache.org/guide/solr/latest/query-guide/standard-query-parser.html#standard-query-parser-parameters