[
https://issues.apache.org/jira/browse/LUCENE-7747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15929894#comment-15929894
]
Michael McCandless commented on LUCENE-7747:
--------------------------------------------
+1, thanks [~jim.ferenczi]
> QueryBuilder should build side-paths query (graph query) lazily
> ---------------------------------------------------------------
>
> Key: LUCENE-7747
> URL: https://issues.apache.org/jira/browse/LUCENE-7747
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Jim Ferenczi
> Priority: Blocker
> Fix For: 6.5
>
> Attachments: LUCENE-7747.patch
>
>
> In LUCENE-7638 we generate a query for each multi-token path in the graph and
> combine them at the end in a boolean query.
> This can lead to OOM when the number of path is big, instead we should build
> the disjunction of these paths lazily in order to throw "too many clauses"
> early if the number of paths is bigger than max boolean clauses.
> For instance a shingle filter with shingles of different size produces a
> graph with multiple side paths at each position. If the input query has a lot
> of tokens, the number of paths (query) created is exponential. For this use
> case it is maybe preferable to disallow graph query analysis completely but
> when allowed we should also be protected against combinatorial explosion.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
