[LUCENE-7533] Classic query parser: autoGeneratePhraseQueries=true doesn't work when splitOnWhitespace=false

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.2, 6.2.1, 6.3
• Fix Version/s: 6.4, 7.0
• Lucene Fields: New
• Assignee: Steven Rowe
• Reporter: Steven Rowe
• Created: 01/Nov/16 23:38
• Updated: 28/Aug/22 15:05
• Resolved: 18/Nov/16 00:24

Description

LUCENE-2605 introduced the classic query parser option to not split on whitespace prior to performing analysis.

From the javadocs for QueryParser.setAutoGeneratePhraseQueries():

phrase queries will be automatically generated when the analyzer returns more than one term from whitespace delimited text.

When splitOnWhitespace=false, the output from analysis can now come from multiple whitespace-separated tokens, which breaks code assumptions when autoGeneratePhraseQueries=true: for this combination of options, it's not appropriate to auto-quote multiple non-overlapping tokens produced by analysis. E.g. simple whitespace tokenization over the query "some words" will produce the token sequence ("some", "words"), and even when autoGeneratePhraseQueries=true, we should not be creating a phrase query here.

Issue Links

• is related to: SOLR-10348 unexpected sow=false interaction with defaultSearchField