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21 lines
606 B
C++
21 lines
606 B
C++
#pragma once
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#include <Core/SortDescription.h>
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#include <Planner/PlannerContext.h>
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#include <Interpreters/WindowDescription.h>
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namespace DB
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{
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/// Extract window descriptions from window function nodes
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std::vector<WindowDescription> extractWindowDescriptions(const QueryTreeNodes & window_function_nodes, const PlannerContext & planner_context);
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/** Try to sort window descriptions in such an order that the window with the longest
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* sort description goes first, and all window that use its prefixes follow.
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*/
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void sortWindowDescriptions(std::vector<WindowDescription> & window_descriptions);
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}
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