[SOLR-7874] two terms in brackets interpreted as range query

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 5.2.1
• Component/s: query parsers
• Assignee: Unassigned
• Reporter: Ryan Steinberg
• Created: 05/Aug/15 17:06
• Updated: 05/Aug/15 19:58
• Resolved: 05/Aug/15 19:58

Description

Queries with two strings between brackets are parsed as range queries even when missing the " TO " keyword. This creates performance problems from extremely expensive unintended range queries.

Example: [string1 string2]
"rawquerystring": "[string1 string2]",
"querystring": "[string1 string2]",
"parsedquery": "(+DisjunctionMaxQuery((text:[string1 TO string2])))/no_coord",
"parsedquery_toString": "+(text:[string1 TO string2])",
"explain": {},
"QParser": "ExtendedDismaxQParser"

Same behavior for LuceneQParser:
"rawquerystring": "[string1 string2]",
"querystring": "[string1 string2]",
"parsedquery": "text:[string1 TO string2]",
"parsedquery_toString": "text:[string1 TO string2]",
"explain": {},
"QParser": "LuceneQParser"

Three strings between brackets is parsed correctly by ExtendedDismaxQParser:
"rawquerystring": "[string1 string2 string3]",
"querystring": "[string1 string2 string3]",
"parsedquery": "(+(DisjunctionMaxQuery((text:string1)) DisjunctionMaxQuery((text:string2)) DisjunctionMaxQuery((text:string3))))/no_coord",
"parsedquery_toString": "+((text:string1) (text:string2) (text:string3))",
"explain": {},
"QParser": "ExtendedDismaxQParser"

Query examples from live search application (copy and pasted book titles):
The biology of cancer [electronic resource]
Prostate cancer principles and practice. [1st ed.]