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#pragma once
#include <unordered_set>
#include <Parsers/IAST.h>
#include <Interpreters/InDepthNodeVisitor.h>
namespace DB
{
class ASTFunction;
/// Rewrite 'any' and 'anyLast' functions pushing them inside original function.
/// any(f(x, y, g(z))) -> f(any(x), any(y), g(any(z)))
class RewriteAnyFunctionMatcher
{
public:
struct Data
{
std::unordered_set<IAST *> rewritten;
};
static void visit(ASTPtr & ast, Data & data);
static void visit(const ASTFunction &, ASTPtr & ast, Data & data);
static bool needChildVisit(const ASTPtr & node, const ASTPtr & child);
};
using RewriteAnyFunctionVisitor = InDepthNodeVisitor<RewriteAnyFunctionMatcher, false>;
}
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