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Posted to notifications@asterixdb.apache.org by "Chen Luo (JIRA)" <ji...@apache.org> on 2017/10/02 18:06:00 UTC

[jira] [Resolved] (ASTERIXDB-2119) Project Rule has non-deterministic ordering of variables

     [ https://issues.apache.org/jira/browse/ASTERIXDB-2119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chen Luo resolved ASTERIXDB-2119.
---------------------------------
    Resolution: Fixed

> Project Rule has non-deterministic ordering of variables
> --------------------------------------------------------
>
>                 Key: ASTERIXDB-2119
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-2119
>             Project: Apache AsterixDB
>          Issue Type: Improvement
>          Components: COMP - Compiler
>            Reporter: Chen Luo
>            Assignee: Chen Luo
>
> IntroduceProjectsRule introduces projections whenever needed to eliminate unnecessary variables. However, the current implementation depends on HashSet, which makes the ordering of output variables indeterministic. This is undesirable for tests, and some operators which may depend on the ordering of variables.



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