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

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