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

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

Wenhai Li created ASTERIXDB-2674:
------------------------------------

             Summary: 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


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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