[SOLR-4646] [edismax] let lowercaseOperators default to "false"

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 4.1, 4.2
• Fix Version/s: 7.0
• Component/s: query parsers
• Assignee: Jan Høydahl
• Reporter: Alexander Koval
• Created: 27/Mar/13 13:32
• Updated: 20/Jun/17 11:42
• Resolved: 20/Jun/17 11:42

Description

Documentation says:
lowercaseOperators
This param controls whether to try to interpret lowercase words as boolean operators such as "and", "not" and "or". Set &lowercaseOperators=true to allow this. Default is "false".

But in fact lowercaseOperators=true by default.
And if one of boolean operators in lowercase is present in query it turns off mm parameter:

• q=Young+6+or+Ariston&defType=edismax&qf=name&mm=100%25&debugQuery=true
  "parsedquery_toString": "+((name:young) (name:6) (name:ariston))"

• q=Young+6+or+Ariston&defType=edismax&qf=name&mm=100%25&lowercaseOperators=false&debugQuery=true
  "parsedquery_toString": "+(((name:young) (name:6) (name:ariston))~3)"

Issue Links

• is related to: SOLR-3580 In ExtendedDismax, lowercase 'not' operator is not being treated as an operator when 'lowercaseOperators' is enabled
• relates to: SOLR-2649 MM ignored in edismax queries with operators