pg_range.h

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/*-------------------------------------------------------------------------
 *
 * pg_range.h
 *    definition of the "range type" system catalog (pg_range)
 *
 *
 * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/catalog/pg_range.h
 *
 * NOTES
 *    The Catalog.pm module reads this file and derives schema
 *    information.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_RANGE_H
#define PG_RANGE_H

#include "catalog/genbki.h"
#include "catalog/pg_range_d.h"

/* ----------------
 *      pg_range definition.  cpp turns this into
 *      typedef struct FormData_pg_range
 * ----------------
 */
CATALOG(pg_range,3541,RangeRelationId) BKI_WITHOUT_OIDS
{
    /* OID of owning range type */
    Oid         rngtypid BKI_LOOKUP(pg_type);

    /* OID of range's element type (subtype) */
    Oid         rngsubtype BKI_LOOKUP(pg_type);

    /* collation for this range type, or 0 */
    Oid         rngcollation BKI_DEFAULT(0);

    /* subtype's btree opclass */
    Oid         rngsubopc BKI_LOOKUP(pg_opclass);

    /* canonicalize range, or 0 */
    regproc     rngcanonical BKI_LOOKUP(pg_proc);

    /* subtype difference as a float8, or 0 */
    regproc     rngsubdiff BKI_LOOKUP(pg_proc);
} FormData_pg_range;

/* ----------------
 *      Form_pg_range corresponds to a pointer to a tuple with
 *      the format of pg_range relation.
 * ----------------
 */
typedef FormData_pg_range *Form_pg_range;

/*
 * prototypes for functions in pg_range.c
 */

extern void RangeCreate(Oid rangeTypeOid, Oid rangeSubType, Oid rangeCollation,
            Oid rangeSubOpclass, RegProcedure rangeCanonical,
            RegProcedure rangeSubDiff);
extern void RangeDelete(Oid rangeTypeOid);

#endif                          /* PG_RANGE_H */