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/*-------------------------------------------------------------------------
*
* pg_operator.h
* definition of the "operator" system catalog (pg_operator)
*
*
* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/pg_operator.h
*
* NOTES
* The Catalog.pm module reads this file and derives schema
* information.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_OPERATOR_H
#define PG_OPERATOR_H
#include "catalog/genbki.h"
#include "catalog/objectaddress.h"
#include "catalog/pg_operator_d.h"
#include "nodes/pg_list.h"
/* ----------------
* pg_operator definition. cpp turns this into
* typedef struct FormData_pg_operator
* ----------------
*/
CATALOG(pg_operator,2617,OperatorRelationId)
{
Oid oid; /* oid */
/* name of operator */
NameData oprname;
/* OID of namespace containing this oper */
Oid oprnamespace BKI_DEFAULT(PGNSP);
/* operator owner */
Oid oprowner BKI_DEFAULT(PGUID);
/* 'l', 'r', or 'b' */
char oprkind BKI_DEFAULT(b);
/* can be used in merge join? */
bool oprcanmerge BKI_DEFAULT(f);
/* can be used in hash join? */
bool oprcanhash BKI_DEFAULT(f);
/* left arg type, or 0 if 'l' oprkind */
Oid oprleft BKI_LOOKUP(pg_type);
/* right arg type, or 0 if 'r' oprkind */
Oid oprright BKI_LOOKUP(pg_type);
/* result datatype */
Oid oprresult BKI_LOOKUP(pg_type);
/* OID of commutator oper, or 0 if none */
Oid oprcom BKI_DEFAULT(0) BKI_LOOKUP(pg_operator);
/* OID of negator oper, or 0 if none */
Oid oprnegate BKI_DEFAULT(0) BKI_LOOKUP(pg_operator);
/* OID of underlying function */
regproc oprcode BKI_LOOKUP(pg_proc);
/* OID of restriction estimator, or 0 */
regproc oprrest BKI_DEFAULT(-) BKI_LOOKUP(pg_proc);
/* OID of join estimator, or 0 */
regproc oprjoin BKI_DEFAULT(-) BKI_LOOKUP(pg_proc);
} FormData_pg_operator;
/* ----------------
* Form_pg_operator corresponds to a pointer to a tuple with
* the format of pg_operator relation.
* ----------------
*/
typedef FormData_pg_operator *Form_pg_operator;
extern ObjectAddress OperatorCreate(const char *operatorName,
Oid operatorNamespace,
Oid leftTypeId,
Oid rightTypeId,
Oid procedureId,
List *commutatorName,
List *negatorName,
Oid restrictionId,
Oid joinId,
bool canMerge,
bool canHash);
extern ObjectAddress makeOperatorDependencies(HeapTuple tuple, bool isUpdate);
extern void OperatorUpd(Oid baseId, Oid commId, Oid negId, bool isDelete);
#endif /* PG_OPERATOR_H */
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