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26 lines
665 B
C++
26 lines
665 B
C++
#pragma once
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#include <Analyzer/IQueryTreePass.h>
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namespace DB
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{
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/** Customize aggregate functions and `in` functions implementations.
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*
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* Example: SELECT countDistinct();
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* Result: SELECT countDistinctImplementation();
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* Function countDistinctImplementation is taken from settings.count_distinct_implementation.
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*/
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class CustomizeFunctionsPass final : public IQueryTreePass
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{
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public:
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String getName() override { return "CustomizeFunctions"; }
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String getDescription() override { return "Customize implementation of aggregate functions, and in functions."; }
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void run(QueryTreeNodePtr query_tree_node, ContextPtr context) override;
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};
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}
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