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Update hash and join routines to use fd.c's new temp-file

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code, instead of not-very-bulletproof stuff they had before.
This commit is contained in:
Tom Lane
1999-05-09 00:53:22 +00:00
parent c1167a08ca
commit 71d5d95376
6 changed files with 75 additions and 243 deletions
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13
src/include/utils/psort.h
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@@ -6,27 +6,25 @@
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: psort.h,v 1.17 1999/02/13 23:22:29 momjian Exp $
* $Id: psort.h,v 1.18 1999/05/09 00:53:18 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PSORT_H
#define PSORT_H
#include <stdio.h>
#include "storage/fd.h"
#include "access/relscan.h"
#include "utils/lselect.h"
#include "nodes/plannodes.h"
#define MAXTAPES 7 /* 7--See Fig. 70, p273 */
#define TAPEEXTLEN strlen("pg_psort.xxxxx.xxx") /* TEMPDIR/TAPEEXT */
#define FREE(x) pfree((char *) x)
#define MAXTAPES 7 /* See Knuth Fig. 70, p273 */
struct tape
{
int tp_dummy; /* (D) */
int tp_fib; /* (A) */
FILE *tp_file; /* (TAPE) */
BufFile *tp_file; /* (TAPE) */
struct tape *tp_prev;
};
@@ -58,7 +56,7 @@ typedef struct Psortstate
struct leftist *Tuples;
FILE *psort_grab_file;
BufFile *psort_grab_file;
long psort_current; /* could be file offset, or array index */
long psort_saved; /* could be file offset, or array index */
bool using_tape_files;
@@ -68,7 +66,6 @@ typedef struct Psortstate
} Psortstate;
#ifdef EBUG
#include <stdio.h>
#include "utils/elog.h"
#include "storage/buf.h"
#include "storage/bufmgr.h"