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https://issues.apache.org/jira/browse/ASTERIXDB-1558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yingyi Bu reassigned ASTERIXDB-1558:
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Assignee: Dmitry Lychagin (was: Yingyi Bu)
> 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: *DB - AsterixDB, AQL - Translator AQL
> Reporter: Michael J. Carey
> Assignee: Dmitry Lychagin
> 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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