You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@ignite.apache.org by "Zbyszek B (JIRA)" <ji...@apache.org> on 2018/01/19 21:07:00 UTC
[jira] [Created] (IGNITE-7482) Cursor in TextQuery fetches all data
in first call to next() or hasNext()
Zbyszek B created IGNITE-7482:
---------------------------------
Summary: Cursor in TextQuery fetches all data in first call to next() or hasNext()
Key: IGNITE-7482
URL: https://issues.apache.org/jira/browse/IGNITE-7482
Project: Ignite
Issue Type: Improvement
Components: general
Affects Versions: 2.3
Reporter: Zbyszek B
In org.apache.ignite.internal.processors.query.h2.opt.GridLuceneIndex#query
in line 285 one executes query
docs = searcher.search(query, Integer.MAX_VALUE) what causes all data to be fetched and deserialised regardless the size of the cursor.
TopDocs searchAfter(final ScoreDoc after, Query query, int numHits) is not used to implement cursor advancing. This causes the issues with 10 mln. entities when (depending
on term) execution takes way above 7 sec. to retrieve first row, hence making this impossible to use TextQuery to implement auto-complete.
See [http://apache-ignite-users.70518.x6.nabble.com/Cursor-in-TextQuery-first-hasNex-is-slow-td19265.html] for more details.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)