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https://issues.apache.org/jira/browse/CASSANDRA-11389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15222348#comment-15222348
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DOAN DuyHai commented on CASSANDRA-11389:
-----------------------------------------
I faced more or less the same issue
I created an index with {{options =\{ 'mode' : 'PREFIX', 'case_sensitive' :
'false' \}}} and of course case insensitivity was not taken into acount.
I dropped and re-created the index by adding an analyzer class (NonTokenizer)
and it worked
> Case sensitive in LIKE query althogh index created with false
> -------------------------------------------------------------
>
> Key: CASSANDRA-11389
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11389
> Project: Cassandra
> Issue Type: Improvement
> Components: sasi
> Reporter: Alon Levi
> Priority: Minor
> Labels: sasi
> Fix For: 3.x
>
>
> I created an index on user's first name as following:
> CREATE CUSTOM INDEX ON users (first_name) USING
> 'org.apache.cassandra.index.sasi.SASIIndex'
> with options = {
> 'mode' : 'CONTAINS',
> 'case_sensitive' : 'false'
> };
> This is the data I have in my table
> user_id | first_name
> | last_name
> -------------------------------------------------------+---------------+-----------
> daa312ae-ecdf-4eb4-b6e9-206e33e5ca24 | Shlomo | Cohen
> ab38ce9d-2823-4e6a-994f-7783953baef1 | Elad | Karakuli
> 5e8371a7-3ed9-479f-9e4b-e4a07c750b12 | Alon | Levi
> ae85cdc0-5eb7-4f08-8e42-2abd89e327ed | Gil | Elias
> Although i mentioned the option 'case_sensitive' : 'false'
> when I run this query :
> select user_id, first_name from users where first_name LIKE '%shl%';
> The query returns no results.
> However, when I run this query :
> select user_id, first_name from users where first_name LIKE '%Shl%';
> The query returns the right results,
> and the strangest thing is when I run this query:
> select user_id, first_name from users where first_name LIKE 'shl%';
> suddenly the query is no more case sensitive and the results are fine.
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