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Posted to notifications@asterixdb.apache.org by "Till (JIRA)" <ji...@apache.org> on 2016/08/17 18:13:22 UTC

[jira] [Updated] (ASTERIXDB-1558) Possible minor glitch in UNKNOWN value related predicates/handling

     [ https://issues.apache.org/jira/browse/ASTERIXDB-1558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till updated ASTERIXDB-1558:
----------------------------
    Labels: soon  (was: )

> Possible minor glitch in UNKNOWN value related predicates/handling
> ------------------------------------------------------------------
>
>                 Key: ASTERIXDB-1558
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1558
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: AsterixDB, Translator - AQL
>            Reporter: Michael J. Carey
>            Assignee: Yingyi Bu
>            Priority: Minor
>              Labels: soon
>
> The following evaluates to TRUE:
>     {
>       'project': 'AsterixDB',
>       'members': [ 'vinayakb', 'dtabass', 'chenli', 'tsotras' ]
>     }.member IS MISSING;
> As, desirably, does:
>     {
>       'project': 'AsterixDB',
>       'members': [ 'vinayakb', 'dtabass', 'chenli', 'tsotras' ]
>     }.member IS UNKNOWN;
> But the following evaluates to NULL (and it seems to me that FALSE would be the proper expected result):
>     {
>       'project': 'AsterixDB',
>       'members': [ 'vinayakb', 'dtabass', 'chenli', 'tsotras' ]
>     }.member IS NULL;
> Of course, I could be MISSING something here, as a SQL++ newbie....



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