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50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
#pragma once
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#include <Analyzer/IQueryTreePass.h>
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#include <Interpreters/Context_fwd.h>
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namespace DB
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{
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/** Query tree pass manager provide functionality to register and run passes
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* on query tree.
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*/
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class QueryTreePassManager : public WithContext
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{
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public:
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explicit QueryTreePassManager(ContextPtr context_);
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/// Get registered passes
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const std::vector<QueryTreePassPtr> & getPasses() const
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{
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return passes;
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}
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/// Add query tree pass
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void addPass(QueryTreePassPtr pass);
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/// Run query tree passes on query tree
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void run(QueryTreeNodePtr query_tree_node);
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/** Run query tree passes on query tree up to up_to_pass_index.
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* Throws exception if up_to_pass_index is greater than passes size.
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*/
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void run(QueryTreeNodePtr query_tree_node, size_t up_to_pass_index);
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/// Dump query tree passes
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void dump(WriteBuffer & buffer);
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/** Dump query tree passes to up_to_pass_index.
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* Throws exception if up_to_pass_index is greater than passes size.
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*/
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void dump(WriteBuffer & buffer, size_t up_to_pass_index);
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private:
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std::vector<QueryTreePassPtr> passes;
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};
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void addQueryTreePasses(QueryTreePassManager & manager);
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}
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