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#pragma once
#include <Parsers/ASTWithAlias.h>
namespace DB
{
/// Parameter in query with name and type of substitution ({name:type}).
/// Example: SELECT * FROM table WHERE id = {pid:UInt16}.
class ASTQueryParameter : public ASTWithAlias
{
public:
String name;
String type;
ASTQueryParameter(const String & name_, const String & type_) : name(name_), type(type_) {}
/** Get the text that identifies this element. */
String getID(char delim) const override { return String("QueryParameter") + delim + name + ':' + type; }
ASTPtr clone() const override { return std::make_shared<ASTQueryParameter>(*this); }
protected:
void formatImplWithoutAlias(const FormatSettings & settings, FormatState &, FormatStateStacked) const override;
void appendColumnNameImpl(WriteBuffer & ostr) const override;
};
}
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