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#pragma once
#include <Parsers/IAST.h>
namespace DB
{
/** Name, type, default-specifier, default-expression, comment-expression.
* The type is optional if default-expression is specified.
*/
class ASTColumnDeclaration : public IAST
{
public:
String name;
ASTPtr type;
std::optional<bool> null_modifier;
String default_specifier;
ASTPtr default_expression;
bool ephemeral_default = false;
ASTPtr comment;
ASTPtr codec;
ASTPtr ttl;
ASTPtr collation;
bool primary_key_specifier = false;
String getID(char delim) const override { return "ColumnDeclaration" + (delim + name); }
ASTPtr clone() const override;
void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}
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