[teiid-issues] [JBoss JIRA] (TEIID-3009) perform projection minimization on with commands

Steven Hawkins (JIRA) issues at jboss.org
Mon Jun 16 16:08:23 EDT 2014


Steven Hawkins created TEIID-3009:
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             Summary: perform projection minimization on with commands
                 Key: TEIID-3009
                 URL: https://issues.jboss.org/browse/TEIID-3009
             Project: Teiid
          Issue Type: Sub-task
      Security Level: Public (Everyone can see)
          Components: Query Engine
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins


We currently treat the with clause as the creation of a temporary table at a query scope, but we can do projection minimization based upon the referenced columns.  This is somewhat tricky with the current planning logic as we must first plan the with clause to determine if it's eligible for pushdown to then plan the main command.  



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