greenplumn CParseHandlerPhysicalCTAS 源码

  • 2022-08-18
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greenplumn CParseHandlerPhysicalCTAS 代码

文件路径:/src/backend/gporca/libnaucrates/include/naucrates/dxl/parser/CParseHandlerPhysicalCTAS.h

//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2014 VMware, Inc. or its affiliates
//
//	@filename:
//		CParseHandlerPhysicalCTAS.h
//
//	@doc:
//		Parse handler for parsing a physical CTAS operator
//
//---------------------------------------------------------------------------
#ifndef GPDXL_CParseHandlerPhysicalCTAS_H
#define GPDXL_CParseHandlerPhysicalCTAS_H

#include "gpos/base.h"

#include "naucrates/dxl/parser/CParseHandlerPhysicalOp.h"
#include "naucrates/md/IMDRelation.h"


namespace gpdxl
{
using namespace gpos;

XERCES_CPP_NAMESPACE_USE

//---------------------------------------------------------------------------
//	@class:
//		CParseHandlerPhysicalCTAS
//
//	@doc:
//		Parse handler for parsing a physical CTAS operator
//
//---------------------------------------------------------------------------
class CParseHandlerPhysicalCTAS : public CParseHandlerPhysicalOp
{
private:
	// schema name
	CMDName *m_mdname_schema;

	// table name
	CMDName *m_mdname;

	// list of distribution column positions
	ULongPtrArray *m_distr_column_pos_array;

	// list of source column ids
	ULongPtrArray *m_src_colids_array;

	// list of vartypmod
	IntPtrArray *m_vartypemod_array;

	// is this a temporary table
	BOOL m_is_temp_table;

	// distribution policy
	IMDRelation::Ereldistrpolicy m_rel_distr_policy;

	// storage type
	IMDRelation::Erelstoragetype m_rel_storage_type;

	// process the start of an element
	void StartElement(
		const XMLCh *const element_uri,			// URI of element's namespace
		const XMLCh *const element_local_name,	// local part of element's name
		const XMLCh *const element_qname,		// element's qname
		const Attributes &attr					// element's attributes
		) override;

	// process the end of an element
	void EndElement(
		const XMLCh *const element_uri,			// URI of element's namespace
		const XMLCh *const element_local_name,	// local part of element's name
		const XMLCh *const element_qname		// element's qname
		) override;

public:
	CParseHandlerPhysicalCTAS(const CParseHandlerPhysicalCTAS &) = delete;

	// ctor
	CParseHandlerPhysicalCTAS(CMemoryPool *mp,
							  CParseHandlerManager *parse_handler_mgr,
							  CParseHandlerBase *parse_handler_root);
};
}  // namespace gpdxl

#endif	// !GPDXL_CParseHandlerPhysicalCTAS_H

// EOF

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