greenplumn CMDArrayCoerceCastGPDB 源码
greenplumn CMDArrayCoerceCastGPDB 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/md/CMDArrayCoerceCastGPDB.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2017 VMware, Inc. or its affiliates.
//
// @filename:
// CMDArrayCoerceCastGPDB.h
//
// @doc:
// Implementation of GPDB-specific array coerce cast functions in the
// metadata cache
//---------------------------------------------------------------------------
#ifndef GPMD_CMDArrayCoerceCastGPDB_H
#define GPMD_CMDArrayCoerceCastGPDB_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLScalar.h"
#include "naucrates/md/CMDCastGPDB.h"
namespace gpmd
{
using namespace gpdxl;
class CMDArrayCoerceCastGPDB : public CMDCastGPDB
{
private:
// DXL for object
const CWStringDynamic *m_dxl_str;
// type mod
INT m_type_modifier;
// is explicit
BOOL m_is_explicit;
// CoercionForm
EdxlCoercionForm m_dxl_coerce_format;
// location
INT m_location;
public:
CMDArrayCoerceCastGPDB(const CMDArrayCoerceCastGPDB &) = delete;
// ctor
CMDArrayCoerceCastGPDB(CMemoryPool *mp, IMDId *mdid, CMDName *mdname,
IMDId *mdid_src, IMDId *mdid_dest,
BOOL is_binary_coercible, IMDId *mdid_cast_func,
EmdCoercepathType path_type, INT type_modifier,
BOOL is_explicit, EdxlCoercionForm dxl_coerce_format,
INT location);
// dtor
~CMDArrayCoerceCastGPDB() override;
// accessors
virtual const CWStringDynamic *
Pstr() const
{
return m_dxl_str;
}
// return type modifier
virtual INT TypeModifier() const;
virtual BOOL IsExplicit() const;
// return coercion form
virtual EdxlCoercionForm GetCoercionForm() const;
// return token location
virtual INT Location() const;
// serialize object in DXL format
void Serialize(gpdxl::CXMLSerializer *xml_serializer) const override;
#ifdef GPOS_DEBUG
// debug print of the type in the provided stream
void DebugPrint(IOstream &os) const override;
#endif
};
} // namespace gpmd
#endif // !GPMD_CMDArrayCoerceCastGPDB_H
// EOF
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