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32 lines
627 B
C++
32 lines
627 B
C++
#pragma once
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#include <unordered_set>
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#include <Parsers/IAST.h>
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#include <Interpreters/InDepthNodeVisitor.h>
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#include <Parsers/ASTSelectIntersectExceptQuery.h>
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namespace DB
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{
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class ASTFunction;
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class ASTSelectWithUnionQuery;
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class SelectIntersectExceptQueryMatcher
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{
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public:
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struct Data {};
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static bool needChildVisit(const ASTPtr &, const ASTPtr &) { return true; }
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static void visit(ASTPtr & ast, Data &);
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static void visit(ASTSelectWithUnionQuery &, Data &);
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};
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/// Visit children first.
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using SelectIntersectExceptQueryVisitor
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= InDepthNodeVisitor<SelectIntersectExceptQueryMatcher, false>;
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}
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