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https://issues.apache.org/jira/browse/ASTERIXDB-2674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenhai Li updated ASTERIXDB-2674:
---------------------------------
    Affects Version/s:     (was: 0.9.4.1)
                       0.9.5

> Index-based similarity search does not work on top of index-based selection
> ---------------------------------------------------------------------------
>
>                 Key: ASTERIXDB-2674
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2674
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: *DB - AsterixDB, AQL - Translator AQL, SQL - Translator 
> SQL++
>    Affects Versions: 0.9.5
>         Environment: Mac/Linux/Windows
>            Reporter: Wenhai Li
>            Assignee: Taewoo Kim
>            Priority: Major
>
> When we conduct index-based similarity search (with hint /*+indexnl*/ ~=) 
> based on the results derived from an index-based selection, the index-based 
> search does not work with a compilation error - {color:#de350b}ASX1030: The 
> subtree does not have any data source{color}.
> Schema:
> {code:java}
> DROP dataverse test IF EXISTS;
>  CREATE dataverse test;
>  USE test;
>  DROP DATASET lefttable IF EXISTS;
>  DROP TYPE lefttype IF EXISTS;
>  CREATE TYPE lefttype AS OPEN {
>  leftid: string,
>  leftname: string
>  };
>  CREATE DATASET lefttable(lefttype) PRIMARY KEY leftid;
>  CREATE INDEX leftnameidx on lefttable(leftname) TYPE btree;
>  DROP DATASET righttable IF EXISTS;
>  DROP TYPE righttype IF EXISTS;
>  CREATE TYPE righttype AS OPEN {
>  rightid: string,
>  leftids: string?
>  };
>  CREATE DATASET righttable(righttype) PRIMARY KEY rightid;
>  CREATE INDEX rightleftidsidx on righttable(leftids) TYPE keyword;
> {code}
>  Query:
> {code:java}
> USE test;
>  SET `simthreshold` `0.0f`;
>  SELECT LT.leftid, RT.rightid
>  FROM lefttable LT, righttable RT
>  WHERE LT.leftname = 'aaa'
>  AND `word-tokens`(LT.leftid) /+indexnl/ ~= `word-tokens`(RT.leftids)
>  ORDER BY LT.leftid, RT.rightid;
> {code}
>  Issue:
> {code:java}
> ASX1030: The subtree does not have any data source (in line 6, at column 5) 
> [CompilationException]{code}



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