Jim Ferenczi created LUCENE-8137: ------------------------------------ Summary: GraphTokenStreamFiniteStrings does not handle position inc > 1 in multi-word synoyms Key: LUCENE-8137 URL: https://issues.apache.org/jira/browse/LUCENE-8137 Project: Lucene - Core Issue Type: Bug Affects Versions: 7.2.1, master (8.0) Reporter: Jim Ferenczi
The automaton built for graph queries that contain multiple multi-word synonyms does not handle gaps if they appear in the middle of a multi-word synonym. In such case the token next to the gap is considered as part of the multi-word synonym. Stop words that appear before or after multi-word synonyms are handled correctly in the current version but the synonym rule "part of speech, pos" for instance does not create the expected query if "of" is removed by a filter that is set after the synonym_graph. One solution would be to reuse TokenStreamToAutomaton (with minor changes to add the ability to create token transitions rather than chars) which preserves gaps (as a transition) in the produced automaton. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org