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Steven Hawkins resolved TEIID-4632.
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Resolution: Done
Updated and corrected the text related to dependent joins.
Clarify in doc's when a MAKEDEP temp table push down will be
performed
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Key: TEIID-4632
URL:
https://issues.jboss.org/browse/TEIID-4632
Project: Teiid
Issue Type: Enhancement
Components: Documentation
Affects Versions: 9.2
Reporter: Van Halbert
Assignee: Steven Hawkins
Priority: Critical
Fix For: 9.2
Clarify in the documentation when the MAKEDEP temp table push down will be performed.
It was tested and confirmed that by changing MaxInCriteriaSize to 1 and
MaxDependentPredicates to 1 could force the temp table pushdown. So it would appear that
when the number of independent values exceeds MaxInCriteriaSize*MaxDependentPredicates
this would be performed (when Enabled Dependent Joins is true).
So, on page 832 (pdf of 9.1)
" .. then multiple dependent queries will be issued in parallel".
May want to rephrase to say if "Enabled Dependent Joins" is true, that pushed
down to temp table will occur, other wise, multiple dependent queries will be issued in
parallel.