public class ASTWildcardProjectionOptimizer extends Object implements IASTOptimizer
ProjectionNodewith a wild card into the set of variables visible to the
QueryBasehaving that projection. This is done first for the
NamedSubqueriesNodeand then depth-first for the WHERE clause. Only variables projected by a subquery will be projected by the parent query.
|Constructor and Description|
|Modifier and Type||Method and Description|
Optimize the AST.
public QueryNodeWithBindingSet optimize(AST2BOpContext context, QueryNodeWithBindingSet input)
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