public class ASTLiftPreFiltersOptimizer extends Object implements IASTOptimizer
StaticAnalysis.getPreFilters(JoinGroupNode)
. Anything reported by
that method can be lifted out of the child group.Constructor and Description |
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ASTLiftPreFiltersOptimizer() |
Modifier and Type | Method and Description |
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QueryNodeWithBindingSet |
optimize(AST2BOpContext context,
QueryNodeWithBindingSet input)
Optimize the AST.
|
public QueryNodeWithBindingSet optimize(AST2BOpContext context, QueryNodeWithBindingSet input)
IASTOptimizer
optimize
in interface IASTOptimizer
context
- The evaluation context.input
- The input to the optimizer, consisting of a queryNode and
input binding set.Copyright © 2006–2019 SYSTAP, LLC DBA Blazegraph. All rights reserved.