oid8.c

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/*-------------------------------------------------------------------------
 *
 * oid8.c
 *    Functions for the built-in type Oid8
 *
 * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *    src/backend/utils/adt/oid8.c
 *
 *-------------------------------------------------------------------------
 */
#include "postgres.h"
 
#include "catalog/pg_type.h"
#include "libpq/pqformat.h"
#include "utils/builtins.h"
 
#define MAXOID8LEN 20
 
/*****************************************************************************
 *   USER I/O ROUTINES                                                       *
 *****************************************************************************/
 
Datum
oid8in(PG_FUNCTION_ARGS)
{
    char       *s = PG_GETARG_CSTRING(0);
    Oid8        result;
 
    result = uint64in_subr(s, NULL, "oid8", fcinfo->context);
    PG_RETURN_OID8(result);
}
 
Datum
oid8out(PG_FUNCTION_ARGS)
{
    Oid8        val = PG_GETARG_OID8(0);
    char        buf[MAXOID8LEN + 1];
    char       *result;
    int         len;
 
    len = pg_ulltoa_n(val, buf) + 1;
    buf[len - 1] = '\0';
 
    /*
     * Since the length is already known, we do a manual palloc() and memcpy()
     * to avoid the strlen() call that would otherwise be done in pstrdup().
     */
    result = palloc(len);
    memcpy(result, buf, len);
    PG_RETURN_CSTRING(result);
}
 
/*
 *      oid8recv            - converts external binary format to oid8
 */
Datum
oid8recv(PG_FUNCTION_ARGS)
{
    StringInfo  buf = (StringInfo) PG_GETARG_POINTER(0);
 
    PG_RETURN_OID8(pq_getmsgint64(buf));
}
 
/*
 *      oid8send            - converts oid8 to binary format
 */
Datum
oid8send(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    StringInfoData buf;
 
    pq_begintypsend(&buf);
    pq_sendint64(&buf, arg1);
    PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
}
 
/*****************************************************************************
 *   PUBLIC ROUTINES                                                         *
 *****************************************************************************/
 
Datum
oid8eq(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 == arg2);
}
 
Datum
oid8ne(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 != arg2);
}
 
Datum
oid8lt(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 < arg2);
}
 
Datum
oid8le(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 <= arg2);
}
 
Datum
oid8ge(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 >= arg2);
}
 
Datum
oid8gt(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_BOOL(arg1 > arg2);
}
 
Datum
hashoid8(PG_FUNCTION_ARGS)
{
    return hashint8(fcinfo);
}
 
Datum
hashoid8extended(PG_FUNCTION_ARGS)
{
    return hashint8extended(fcinfo);
}
 
Datum
oid8larger(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_OID8((arg1 > arg2) ? arg1 : arg2);
}
 
Datum
oid8smaller(PG_FUNCTION_ARGS)
{
    Oid8        arg1 = PG_GETARG_OID8(0);
    Oid8        arg2 = PG_GETARG_OID8(1);
 
    PG_RETURN_OID8((arg1 < arg2) ? arg1 : arg2);
}