[jira] [Closed] (TRAFODION-2569) Improve handling of index hints

["Hans Zeller (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TRAFODION-2569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hans Zeller closed TRAFODION-2569.
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> Improve handling of index hints
> -------------------------------
>
>                 Key: TRAFODION-2569
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-2569
>             Project: Apache Trafodion
>          Issue Type: Improvement
>          Components: sql-cmp
>    Affects Versions: 2.0-incubating
>            Reporter: Hans Zeller
>            Assignee: Hans Zeller
>             Fix For: 2.2-incubating
>
>
> We allow index hints of this form:
> select ... from table1 <<+index TRAFODION.SCH.IX1>> ...
> In many cases, the compiler does not choose the index specified in the hint, however. A few improvements I am planning to do, if I can pull it off:
> * if we need an index join, make sure we get it using this index
> * allow hints in update statements
> * bind the names in the hint, so they don't have to be specified as upper-case 3-part names.
> * issue a warning if the table name in the index does not specify an index



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