[JBoss JIRA] (TEIID-5472) Clean up window function project node implementation
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[
https://issues.jboss.org/browse/TEIID-5472?page=com.atlassian.jira.plugin...
]
Steven Hawkins commented on TEIID-5472:
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Another potential clean up is to allow nth_value to use the frame clause. That seems to
be commonly supported and is allowed by the spec. For some reason postgresql allows the
frame clause on ntile,lead/lag, but it's effectively ignored - it should raise an
exception.
Clean up window function project node implementation
----------------------------------------------------
Key: TEIID-5472
URL: https://issues.jboss.org/browse/TEIID-5472
Project: Teiid
Issue Type: Quality Risk
Components: Query Engine
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 11.2
The initial implementation of window functions did not allow for a frame clause and
specifically separated the logic of creating row and range values. Now that the logic is
more complete we should remove some of the initial design aspects.
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Steven Hawkins (JIRA)