[JBoss JIRA] (TEIID-964) Must pushdown functions in select clause
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[
https://issues.jboss.org/browse/TEIID-964?page=com.atlassian.jira.plugin....
]
Steven Hawkins resolved TEIID-964.
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Assignee: Steven Hawkins
Resolution: Done
Added support for pushing must pushdown functions in the select clause.
The logic could be expended later into more general projection/subexpression pushing that
works on all clauses.
Must pushdown functions in select clause
----------------------------------------
Key: TEIID-964
URL: https://issues.jboss.org/browse/TEIID-964
Project: Teiid
Issue Type: Feature Request
Components: Query Engine
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 7.6
(F_ATM_REPORT_TYPE is a DB function)
SELECT F_ATM_REPORT_TYPE (BUS_LINE_CODE) FROM ...
Will not have the function pushed down if it only appears in the select clause. The
planner must check if a function is pushdown only when it appears in the select clause and
determine a source to push it to.
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Steven Hawkins (Resolved) (JIRA)