[teiid-issues] [JBoss JIRA] (TEIID-5019) Makedep hint using @ syntax sometimes ignored

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-5019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-5019:
----------------------------------
      Component/s: Query Engine
    Fix Version/s: 10.0
                   9.3.3


> Makedep hint using @ syntax sometimes ignored
> ---------------------------------------------
>
>                 Key: TEIID-5019
>                 URL: https://issues.jboss.org/browse/TEIID-5019
>             Project: Teiid
>          Issue Type: Bug
>          Components: Query Engine
>            Reporter: Mike Higgins
>            Assignee: Steven Hawkins
>             Fix For: 10.0, 9.3.3
>
>
> I’m using Teiid version 9.2.2.  In some cases, using the makedep @<table> feature results in the makedep hint being ignored.
> I use this feature to apply a makedep to only one branch of a set operation, since makedep hints are not applied when placed on the individual queries in the set operation .
> My query looks like this:
>  
> (Select bbb from ccc
> Intersect
> select abc.yyy from (select yyy from zzz) abc
> ) option makedep @abc.zzz
>  
> In the debug plan in the “GENERATE CANONICAL” section, I see:
>  
> MEDIUM [Hints] Unknown group specified in OPTION MAKEDEP/MAKENOTDEP: @abc.zzz - ignoring hint
>  
> This only occurs if the query has no limit applied to it.  If I add a limit option, it does find the table and apply the hint correctly.



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