[jira] [Assigned] (ASTERIXDB-2674) Index-based similarity search doest not work on top of index-based selection

["Wenhai Li (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ASTERIXDB-2674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenhai Li reassigned ASTERIXDB-2674:
------------------------------------

    Assignee: Taewoo Kim

> Index-based similarity search doest 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: 0.9.4.1
>         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:
> 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;{color:#de350b}CREATE INDEX leftnameidx on lefttable(leftname) TYPE btree;{color}
> 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;
> Query:
> 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;
> Issue:
> ASX1030: The subtree does not have any data source (in line 6, at column 5) [CompilationException]



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