ClickHouse/dbms/src/Interpreters/ReplaceQueryParameterVisitor.h

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#pragma once
#include <Core/Names.h>
#include <Parsers/IAST_fwd.h>
namespace DB
{
class ASTQueryParameter;
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/// Visit substitutions in a query, replace ASTQueryParameter with ASTLiteral.
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class ReplaceQueryParameterVisitor
{
public:
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ReplaceQueryParameterVisitor(const NameToNameMap & parameters)
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: query_parameters(parameters)
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{}
void visit(ASTPtr & ast);
private:
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const NameToNameMap & query_parameters;
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const String & getParamValue(const String & name);
void visitQueryParameter(ASTPtr & ast);
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};
}