greenplumn pg_opfamily 源码
greenplumn pg_opfamily 代码
文件路径：/src/include/catalog/pg_opfamily.h
/*-------------------------------------------------------------------------
*
* pg_opfamily.h
* definition of the "operator family" system catalog (pg_opfamily)
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/pg_opfamily.h
*
* NOTES
* The Catalog.pm module reads this file and derives schema
* information.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_OPFAMILY_H
#define PG_OPFAMILY_H
#include "catalog/genbki.h"
#include "catalog/pg_opfamily_d.h"
/* ----------------
* pg_opfamily definition. cpp turns this into
* typedef struct FormData_pg_opfamily
* ----------------
*/
CATALOG(pg_opfamily,2753,OperatorFamilyRelationId)
{
Oid oid; /* oid */
/* index access method opfamily is for */
Oid opfmethod BKI_LOOKUP(pg_am);
/* name of this opfamily */
NameData opfname;
/* namespace of this opfamily */
Oid opfnamespace BKI_DEFAULT(PGNSP);
/* opfamily owner */
Oid opfowner BKI_DEFAULT(PGUID);
} FormData_pg_opfamily;
/* GPDB added foreign key definitions for gpcheckcat. */
FOREIGN_KEY(opfmethod REFERENCES pg_am(oid));
FOREIGN_KEY(opfnamespace REFERENCES pg_namespace(oid));
FOREIGN_KEY(opfowner REFERENCES pg_authid(oid));
/* ----------------
* Form_pg_opfamily corresponds to a pointer to a tuple with
* the format of pg_opfamily relation.
* ----------------
*/
typedef FormData_pg_opfamily *Form_pg_opfamily;
#ifdef EXPOSE_TO_CLIENT_CODE
#define IsBooleanOpfamily(opfamily) \
((opfamily) == BOOL_BTREE_FAM_OID || (opfamily) == BOOL_HASH_FAM_OID)
#endif /* EXPOSE_TO_CLIENT_CODE */
#endif /* PG_OPFAMILY_H */
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