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https://issues.apache.org/jira/browse/CASSANDRA-11122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15134876#comment-15134876
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Pavel Yaskevich commented on CASSANDRA-11122:
---------------------------------------------
I've pushed [~beobal]'s changes as part of CASSANDRA-11067 and why I think
happened is normalization difference between python and java since I can't
really reproduce it in tests and everything cyrillic sorts after ascii
characters, so by adding comparator proper comparisons where ensured and
everything should be working fine.
[~doanduyhai] Please let us know how your tests go!
> SASI does not find term when indexing non-ascii character
> ---------------------------------------------------------
>
> Key: CASSANDRA-11122
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11122
> Project: Cassandra
> Issue Type: Bug
> Components: CQL
> Environment: Cassandra 3.4 SNAPSHOT
> Reporter: DOAN DuyHai
> Attachments: 11122-range-term-tree-interval-tree.patch,
> CASSANDRA-11122.patch
>
>
> I built the snapshot version taken from here:
> https://github.com/xedin/cassandra/tree/CASSANDRA-11067
> I create a tiny musical dataset with non-ascii characters (*cyrillic*
> actually) and create a SASI index on the artist name.
> SASI can find rows for the cyrillic name but strangely fails to index normal
> ascii name (_'Object'_).
> {code:sql}
> CREATE KEYSPACE music WITH replication = {'class': 'SimpleStrategy',
> 'replication_factor': '1'} AND durable_writes = true;
> CREATE TABLE music.albums (
> title text PRIMARY KEY,
> artist text
> );
> INSERT INTO music.albums(artist,title) VALUES('Object','The Reflecting Skin');
> INSERT INTO music.albums(artist,title) VALUES('Hayden','Mild and Hazy');
> INSERT INTO music.albums(artist,title) VALUES('Самое Большое Простое
> Число','СБПЧ Оркестр');
> CREATE custom INDEX on music.albums(artist) USING
> 'org.apache.cassandra.index.sasi.SASIIndex' WITH OPTIONS = {
> 'analyzer_class':
> 'org.apache.cassandra.index.sasi.analyzer.NonTokenizingAnalyzer',
> 'case_sensitive': 'false'};
> SELECT * FROM music.albums;
> title | artist
> ---------------------+-----------------------------
> The Reflecting Skin | Object
> Mild and Hazy | Hayden
> СБПЧ Оркестр | Самое Большое Простое Число
> (3 rows)
> SELECT * FROM music.albums WHERE artist='Самое Большое Простое Число';
> title | artist
> ---------------------+-----------------------------
> СБПЧ Оркестр | Самое Большое Простое Число
> (1 rows)
> SELECT * FROM music.albums WHERE artist='Hayden';
> title | artist
> ---------------------+-----------------------------
> Mild and Hazy | Hayden
> (1 rows)
> SELECT * FROM music.albums WHERE artist='Object';
> title | artist
> ---------------------+-----------------------------
> (0 rows)
> SELECT * FROM music.albums WHERE artist like 'Ob%';
> title | artist
> ---------------------+-----------------------------
> (0 rows)
> {code}
> Strangely enough, after cleaning all the data and re-inserting without the
> russian artist with cyrillic name, SASI does find _'Object_' ...
> {code:sql}
> DROP INDEX albums_artist_idx;
> TRUNCATE TABLE albums;
> INSERT INTO albums(artist,title) VALUES('Object','The Reflecting Skin');
> INSERT INTO albums(artist,title) VALUES('Hayden','Mild and Hazy');
> CREATE custom INDEX on music.albums(artist) USING
> 'org.apache.cassandra.index.sasi.SASIIndex' WITH OPTIONS = {
> 'analyzer_class':
> 'org.apache.cassandra.index.sasi.analyzer.NonTokenizingAnalyzer',
> 'case_sensitive': 'false'};
> SELECT * FROM music.albums;
> title | artist
> ---------------------+-----------------------------
> The Reflecting Skin | Object
> Mild and Hazy | Hayden
> (2 rows)
> SELECT * FROM music.albums WHERE artist='Object';
> title | artist
> ---------------------+-----------------------------
> The Reflecting Skin | Object
> (1 rows)
> SELECT * FROM music.albums WHERE artist LIKE 'Ob%';
> title | artist
> ---------------------+-----------------------------
> The Reflecting Skin | Object
> (1 rows)
> {code}
> The behaviour is quite inconsistent. I can understand that SASI refuses to
> index cyrillic character or issue exception when encountering non-ascii
> characters (because we did not specify the locale) but it's very surprising
> that the indexing fails for normal ascii characters like _Object_
> Could it be that SASI start indexing the artist name by following table
> albums token range order (hash of title) and it stops indexing after
> encountering the cyrillic name ?
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