[teiid-issues] [JBoss JIRA] (TEIID-1568) Partial Pushdown of WHERE clause columns

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins resolved TEIID-1568.
-----------------------------------
    Resolution: Out of Date


Marking as out of date.  A new issue can be logged if one of the existing searchability types (like only, all except like, not searchable, equality only) is not enough.

> Partial Pushdown of WHERE clause columns
> ----------------------------------------
>
>                 Key: TEIID-1568
>                 URL: https://issues.jboss.org/browse/TEIID-1568
>             Project: Teiid
>          Issue Type: Feature Request
>            Reporter: Mark Addleman
>            Assignee: Steven Hawkins
>            Priority: Minor
>
> We have some exotic data sources that can efficiently support WHERE clause filtering on particular columns + operators combinations but are no better than Teiid for other operation.  In particular, suppose I have a data source that supplies columns A and B.  The data source can efficiently support A='some value' but may not support A>'value' or A!='value' and does not support efficient processing of column B at all.  We would like an enhance supports* protocol to describe the particulars of a data source's capabilities with finer detail.
> Even partially solving this problem without operator support would be helpful



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