Class RemoveNotOptimizer
- java.lang.Object
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- org.apache.iotdb.db.mpp.plan.rewriter.RemoveNotOptimizer
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- All Implemented Interfaces:
IFilterOptimizer
public class RemoveNotOptimizer extends java.lang.Object implements IFilterOptimizer
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Constructor Summary
Constructors Constructor Description RemoveNotOptimizer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description QueryFilteroptimize(QueryFilter filter)get DNF(disjunctive normal form) for this filter tree.
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Method Detail
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optimize
public QueryFilter optimize(QueryFilter filter) throws StatementAnalyzeException
get DNF(disjunctive normal form) for this filter tree. Before getDNF, this op tree must be binary, in another word, each non-leaf node has exactly two children.- Specified by:
optimizein interfaceIFilterOptimizer- Returns:
- optimized filter
- Throws:
StatementAnalyzeException- exception in RemoveNot optimizing
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