18 Commits

Author SHA1 Message Date
67f438986f Bump version to 9.6.0 2016-09-29 13:24:49 +02:00
1c9dd6b728 Set exit status if something goes wrong.
Aleksander Alekseev
2016-09-23 15:43:11 +03:00
052ed01129 Fix checksum validation for relations that have more than one segment.
A blkno argument passed to pg_checksum_page procedure should be not a
relative block number in a given segment but an absolute block number
in the entire relation. It's the same for the segment number 0, but for
segment number N the difference is RELSEG_SIZE * N.

Aleksander Alekseev
2016-09-07 19:27:02 +03:00
b163cdaa53 Use LDFLAGS to link 2016-03-24 18:59:57 +01:00
42257f58af Use pg_config --libdir 2016-03-24 18:58:53 +01:00
10d27139e2 Support 9.5 and recognize more flags
This follows the CRC32 macro renames in 9.5 (we do not attempt to
maintain support for the older versions), adds support for the
DB_SHUTDOWNED_IN_RECOVERY dbState, and adds support for missing BTree
and GIN page flags.

Satoshi Nagayasu
2016-03-19 17:52:28 +01:00
595225c836 Bump copyright year 2016-02-02 19:04:03 +01:00
9eb845b233 Use pg_config to determine include location
This seems to be the better default over hardcoding a random filesystem
location.
2016-02-02 19:03:55 +01:00
17dafd471e Change all // comments to /* */ and run pgindent
Fabrízio de Royes Mello
2014-08-30 22:18:12 +02:00
81982fa168 Add support for verifying block checksums
Patch by Jeff Davis, rebased by Fabrízio de Royes Mello.
2014-08-30 22:15:22 +02:00
e3b9612db0 Update copyright date. 2014-06-10 13:24:38 -04:00
093effb3f8 Add .gitignore. 2014-06-10 13:10:11 -04:00
bbd992bc26 Preliminary updates for Postgres 9.3. 2013-06-06 18:33:16 +00:00
4f71071d5b Updates for latest Postgres 9.2 sources.
We no longer need pg_crc.c, and hence not a source tree, yay.
2012-03-12 16:08:33 +00:00
883c674f6f Preliminary support for SP-GiST indexes. 2011-12-18 00:11:29 +00:00
3551cfe252 Update for Postgres 9.1; add knowledge of some more flag bits;
improve Makefile to be able to build a release tarball.
2011-11-26 22:14:08 +00:00
2c9c61c841 Fix odd printout of hasnulls/hasvarwidths flags for index tuples.
Per a gripe some months ago from Alvaro.
2011-01-18 02:36:38 +00:00
ac96dfbaca Assorted adjustments to prepare pg_filedump for its new life.
Add PostgreSQL Global Development Group to the copyright notices, and
remove a couple of no-longer-appropriate references to Red Hat.
Unfortunately I can't undo Red Hat's choice of GPL licensing, but it is
what it is.

Also reduce the pain of version-stamping by coalescing references to the
version into one pair of macros, and removing not-especially-useful
change logs.  IMO the commit logs serve that purpose just as well.
2011-01-18 02:28:26 +00:00
7 changed files with 1889 additions and 1633 deletions

2
.gitignore vendored Normal file
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@ -0,0 +1,2 @@
/pg_filedump.o
/pg_filedump

174
ChangeLog
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@ -1,174 +0,0 @@
2010-12-29 Tom Lane <tgl@redhat.com>
* pg_filedump.c, .h: Update version and copyright date for
PostgreSQL 9.0 (there aren't any on-disk layout changes in 9.0).
2009-07-08 Tom Lane <tgl@redhat.com>
* pg_filedump.c: Update for changes in pg_control contents in
PostgreSQL 8.4.
* pg_filedump.c, .h: Update version and copyright date.
2008-02-08 Tom Lane <tgl@redhat.com>
* pg_filedump.c: Updates for various representation changes in
PostgreSQL 8.3; in particular there is finally a trustworthy way
to tell apart the various types of index special space.
* pg_filedump.c, .h: Update version and copyright date.
2007-02-14 Tom Lane <tgl@redhat.com>
* pg_filedump.c, .h: Remove rtree support (gone in PostgreSQL 8.2)
and add GIN support. Other updates for changes in index special
section contents in 8.2.
* pg_filedump.c: Repair old bug that misreported header length by
4 bytes.
* pg_filedump.c, .h: Update version and copyright date.
2005-11-21 Tom Lane <tgl@redhat.com>
* pg_filedump.c, .h: Adjust to support PostgreSQL 8.1 tuple format
and control file layout.
* pg_filedump.c, .h: Update version and copyright date.
* Makefile.contrib: Update for PGXS changes.
2005-02-10 Tom Lane <tgl@redhat.com>
* pg_filedump.c, .h: Adjust to support PostgreSQL 8.0 tuple format.
* pg_filedump.c, .h: Update version and copyright date.
2003-09-29 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c (GetSpecialSectionType): Distinguish between btree and
hash index pages using the hasho_filler field.
(FormatHeader): Verify index page header is btree before dumping meta
data.
(FormatSpecial): Format index areas based on precalculated special
section type.
* pg_filedump.h: Add distinct index special section types.
2003-05-30 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Bumped version up to 3.0.
2003-04-17 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c (DisplayOptions): Update version and copyright
date.
(FormatHeader): Display btree meta data as part of the header
if this is a btree meta page.
(FormatItem): Remove older version defines.
(FormatSpecial): Add new btree defines.
(FormatControl): Remove older version defines.
* pg_filedump.h: Update version and copyright date, remove older
version structure defines.
2003-04-17 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Updated header, copyright and indentation.
* pg_filedump.h: ditto.
2002-12-18 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Version 1.1 of the tool, moved
declarations to proper header,
(GetBlockSize): Cache block size locally,
(CreateDumpFileHeader): Increment the release minor,
(FormatHeader): Add block version number to output,
(FormatItem): Support new heap tuple layout,
(FormatControl): Support additional entries in the
control file.
* pg_filedump.h: New file.
* README.pg_filedump: Updated for version control.
2002-10-16 Patrick Macdonald <patrickm@redhat.com>
* rhdb-utils.build: Updated branch level.
2002-09-24 Andrew Overholt <overholt@redhat.com>
* rhdb-utils.build: Change cvsroot to reflect new server.
2002-09-11 Andrew Overholt <overholt@redhat.com>
* rhdb-utils.spec: Change release number to 1.
2002-07-29 Liam Stewart <liams@redhat.com>
* rhdb-utils.build: Tightened the cvs module so checkouts don't
take forever.
(get_cvs): Checkout instead of export.
(build): Call build_srpm to build SRPM.
2002-07-10 Liam Stewart <liams@redhat.com>
* rhdb-utils.build (build): Use rpmbuild instead of rpm; ignore
dependencies.
2002-07-08 Liam Stewart <liams@redhat.com>
* rhdb-utils.spec: Updated summary and description text. Bumped
release.
2002-07-04 Liam Stewart <liams@redhat.com>
* rhdb-utils.build: $download -> $downloaddir
* rhdb-utils.spec: New file.
* rhdb-utils.build: New file.
* rpm-extras/pg_filedump-crc.patch: New file.
* rpm-extras/pg_filedump-make.patch: New file.
2002-03-08 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c (FormatItem): Remove EXTENDED,
add XMAX_COMMITED and XMAX_INVALID, add proper
t_bits[] processing, fix typo.
* Makefile.contrib: New file.
2002-03-04 Patrick Macdonald <patrickm@redhat.com>
* README.pg_filedump: sources merge.
2002-02-04 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Add macro to set options and
flag duplicates, move copyright out of the
header block, use MAXALIGN when determining
special section size
* README.pg_filedump: New file.
2002-02-01 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Alter copyright info to GPL.
* pg_filedump.c: Minor tweaks to printf() formatting,
(FormatItem): Add new parameter to receive the
formatting method.
(FormatItemBlock): Determine and pass the format
method to FormatItem().
2002-01-30 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Added -B to valid control file
dump options.
* Makefile: Add -Wmissing-prototypes and
-Wmissing-declarations.
2002-01-29 Patrick Macdonald <patrickm@redhat.com>
* pg_filedump.c: Renamed from pgfiledump.c
2002-01-29 Patrick Macdonald <patrickm@redhat.com>
* pgfiledump.c: Scrubbed the code, added support
for CRC checking, improved readability, fixed
unsigned vs signed problems.
* Makefile: Added pg_crc.c to support CRC checks.
2002-01-28 Patrick Macdonald <patrickm@redhat.com>
* pgfiledump.c: Added FormatControl() to support
dumping of the PostgreSQL control file.
2002-01-25 Patrick Macdonald <patrickm@redhat.com>
* Makefile, pgfiledump.c: New file.

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@ -1,26 +1,36 @@
# View README.pg_filedump first
# note this must match version macros in pg_filedump.h
FD_VERSION=9.6.0
CC=gcc
CFLAGS=-g -O -Wall -Wmissing-prototypes -Wmissing-declarations
INCLUDE=/usr/include/pgsql/server
# If working with a PG source directory, point PGSQL_INCLUDE_DIR to its
# src/include subdirectory. If working with an installed tree, point to
# the server include subdirectory, eg /usr/local/include/postgresql/server
PG_CONFIG=pg_config
PGSQL_INCLUDE_DIR=$(shell $(PG_CONFIG) --includedir-server)
PGSQL_LIB_DIR=$(shell $(PG_CONFIG) --libdir)
# PGSQL MUST POINT TO pgsql SOURCE DIRECTORY
PGSQL=../../../../postgres/pgsql
CRC_SRC=${PGSQL}/src/backend/utils/hash
CRC_INCLUDE=${PGSQL}/src
DISTFILES= README.pg_filedump Makefile Makefile.contrib \
pg_filedump.h pg_filedump.c
all: pg_filedump
pg_filedump: pg_filedump.o pg_crc.o
${CC} ${CFLAGS} -o pg_filedump pg_filedump.o pg_crc.o
pg_filedump: pg_filedump.o
${CC} ${LDFLAGS} -o pg_filedump pg_filedump.o -L${PGSQL_LIB_DIR} -lpgport
pg_filedump.o: pg_filedump.c
${CC} ${CFLAGS} -I${INCLUDE} pg_filedump.c -c
${CC} ${CFLAGS} -I${PGSQL_INCLUDE_DIR} pg_filedump.c -c
pg_crc.o: ${CRC_SRC}/pg_crc.c
${CC} ${CFLAGS} -I${CRC_INCLUDE} -I${INCLUDE} ${CRC_SRC}/pg_crc.c -c
dist:
rm -rf pg_filedump-${FD_VERSION} pg_filedump-${FD_VERSION}.tar.gz
mkdir pg_filedump-${FD_VERSION}
cp -p ${DISTFILES} pg_filedump-${FD_VERSION}
tar cfz pg_filedump-${FD_VERSION}.tar.gz pg_filedump-${FD_VERSION}
rm -rf pg_filedump-${FD_VERSION}
clean:
rm -rf *.o pg_filedump
rm -f *.o pg_filedump

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@ -1,7 +1,5 @@
PROGRAM = pg_filedump
OBJS = pg_filedump.o pg_crc.o
EXTRA_CLEAN = pg_crc.c
OBJS = pg_filedump.o
DOCS = README.pg_filedump
@ -15,6 +13,3 @@ top_builddir = ../..
include $(top_builddir)/src/Makefile.global
include $(top_srcdir)/contrib/contrib-global.mk
endif
pg_crc.c: $(top_srcdir)/src/backend/utils/hash/pg_crc.c
rm -f $@ && $(LN_S) $< .

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@ -1,19 +1,20 @@
pg_filedump - Display formatted contents of a PostgreSQL heap/index/control
file.
pg_filedump - Display formatted contents of a PostgreSQL heap, index,
or control file.
Copyright (c) 2002-2010 Red Hat, Inc.
Copyright (c) 2011-2016, PostgreSQL Global Development Group
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Author: Patrick Macdonald <patrickm@redhat.com>
Original Author: Patrick Macdonald <patrickm@redhat.com>
Version: 9.0.0
Overview:
------------------------------------------------------------------------
Overview:
pg_filedump is a utility to format PostgreSQL heap/index/control files
into a human-readable form. You can format/dump the files several ways,
as listed in the Invocation section, as well as dumping straight binary.
@ -22,64 +23,43 @@ The type of file (heap/index) can usually be determined automatically
by the content of the blocks within the file. However, to format a
pg_control file you must use the -c option.
The default is to format the entire file using the block size listed on
block 0 (heap/index files) and display block relative addresses. These
defaults can be modified using run-time options.
The default is to format the entire file using the block size listed in
block 0 and display block relative addresses. These defaults can be
modified using run-time options.
Some options may seem strange but they're there for a reason. For
example, block size. It's there because if the header of block 0 is
corrupt, you need a method of forcing a block size.
Release Notes / Databases Supported
-----------------------------------------------------------------------
V9.0.0 Must be compiled against a PostgreSQL 9.0 installation.
Supports: PostgreSQL 9.0.x
V8.4.0 Must be compiled against a PostgreSQL 8.4 installation.
Supports: PostgreSQL 8.4.x
V8.3.0 Must be compiled against a PostgreSQL 8.3 installation.
Supports: PostgreSQL 8.3.x
V8.2.0 Must be compiled against a PostgreSQL 8.2 installation.
Supports: PostgreSQL 8.2.x
V8.1.1 Must be compiled against a PostgreSQL 8.1 installation.
Supports: PostgreSQL 8.1.x
V4.0 Must be compiled against a PostgreSQL 8.0 installation.
Supports: PostgreSQL 8.0.x
V3.0 Must be compiled against a PostgreSQL 7.4 installation.
Supports: PostgreSQL 7.4.x
V2.0 Must be compiled against a PostgreSQL 7.3 installation.
Supports: PostgreSQL - Red Hat Edition 3.0,
Red Hat Database 2.x, Red Hat Database 1.x
PostgreSQL 7.3.x, PostgreSQL 7.2.x, PostgreSQL 7.1.x
V1.0 Must be compiled against a PostgreSQL 7.1 or PostgreSQL 7.2
installation.
Supports: Red Hat Database 2.x, Red Hat Database 1.x
PostgreSQL 7.2.x, PostgreSQL 7.1.x
Compile/Installation:
------------------------------------------------------------------------
There are two makefiles included in this package. Makefile is a
standalone makefile for pg_filedump. Alter the include and src
variables to point to the proper directories. Makefile.contrib can be
used if the package was untarred in the contrib directory of a
PostgreSQL build tree.
Compile/Installation:
To compile pg_filedump, you will need to have a properly configured
PostgreSQL source tree or complete install tree (with include files)
of the appropriate PostgreSQL major version.
There are two makefiles included in this package. Makefile is a standalone
makefile for pg_filedump. Alter its PGSQL_INCLUDE_DIR variable to point to
the PostgreSQL include files. Makefile.contrib can be used if this package
was untarred in the contrib directory of a PostgreSQL build tree.
make
make install (if in the contrib directory)
make install (if using Makefile.contrib)
It is also possible to use Makefile.contrib without being in the contrib
directory:
make -f Makefile.contrib USE_PGXS=1
This method requires that the pg_config program be in your PATH, but should
not require any manual adjustments of the Makefile.
Invocation:
------------------------------------------------------------------------
pg_filedump [-abcdfhixy] [-R startblock [endblock]] [-S blocksize] file
Invocation:
pg_filedump [-abcdfhikxy] [-R startblock [endblock]] [-S blocksize] [-s segsize] [-n segnumber] file
Defaults are: relative addressing, range of the entire file, block size
as listed on block 0 in the file
@ -94,11 +74,14 @@ The following options are valid for heap and index files:
-f Display formatted block content dump along with interpretation
-h Display this information
-i Display interpreted item details
-k Verify block checksums
-R Display specific block ranges within the file (Blocks are
indexed from 0)
[startblock]: block to start at
[endblock]: block to end at
A startblock without an endblock will format the single block
-s Force segment size to [segsize]
-n Force segment number to [segnumber]
-S Force block size to [blocksize]
-x Force interpreted formatting of block items as index items
-y Force interpreted formatting of block items as heap items
@ -107,3 +90,6 @@ The following options are valid for control files:
-c Interpret the file listed as a control file
-f Display formatted content dump along with interpretation
-S Force block size to [blocksize]
In most cases it's recommended to use the -i and -f options to get
the most useful dump output.

File diff suppressed because it is too large Load Diff

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@ -1,9 +1,9 @@
/*
* pg_filedump.h - PostgreSQL file dump utility for dumping and
* formatting heap (data), index and control files.
* Version 9.0.0 for PostgreSQL 9.0
*
* Copyright (c) 2002-2010 Red Hat, Inc. All rights reserved.
* Copyright (c) 2002-2010 Red Hat, Inc.
* Copyright (c) 2011-2016, PostgreSQL Global Development Group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -19,92 +19,109 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Patrick Macdonald <patrickm@redhat.com>
*
* Component of: PostgreSQL - Red Hat Edition - Utilities / Tools
*
* Original Author: Patrick Macdonald <patrickm@redhat.com>
*/
#include <stdio.h>
#define FD_VERSION "9.6.0" /* version ID of pg_filedump */
#define FD_PG_VERSION "PostgreSQL 9.6.x" /* PG version it works with */
#include "postgres.h"
#include <time.h>
#include <ctype.h>
#include "postgres.h"
#include "storage/bufpage.h"
#include "access/hash.h"
#include "access/gin.h"
#include "access/gin_private.h"
#include "access/gist.h"
#include "access/nbtree.h"
#include "access/itup.h"
#include "access/hash.h"
#include "access/htup.h"
#include "access/htup_details.h"
#include "access/itup.h"
#include "access/nbtree.h"
#include "access/spgist_private.h"
#include "catalog/pg_control.h"
#include "storage/bufpage.h"
// Options for Block formatting operations
/* Options for Block formatting operations */
static unsigned int blockOptions = 0;
typedef enum
typedef enum blockSwitches
{
BLOCK_ABSOLUTE = 0x00000001, // -a: Absolute (vs Relative) addressing
BLOCK_BINARY = 0x00000002, // -b: Binary dump of block
BLOCK_FORMAT = 0x00000004, // -f: Formatted dump of blocks / control file
BLOCK_FORCED = 0x00000008, // -S: Block size forced
BLOCK_NO_INTR = 0x00000010, // -d: Dump straight blocks
BLOCK_RANGE = 0x00000020 // -R: Specific block range to dump
}
blockSwitches;
BLOCK_ABSOLUTE = 0x00000001, /* -a: Absolute(vs Relative) addressing */
BLOCK_BINARY = 0x00000002, /* -b: Binary dump of block */
BLOCK_FORMAT = 0x00000004, /* -f: Formatted dump of blocks / control file */
BLOCK_FORCED = 0x00000008, /* -S: Block size forced */
BLOCK_NO_INTR = 0x00000010, /* -d: Dump straight blocks */
BLOCK_RANGE = 0x00000020, /* -R: Specific block range to dump */
BLOCK_CHECKSUMS = 0x00000040 /* -k: verify block checksums */
} blockSwitches;
static int blockStart = -1; // -R [start]: Block range start
static int blockEnd = -1; // -R [end]: Block range end
/* Segment-related options */
static unsigned int segmentOptions = 0;
// Options for Item formatting operations
typedef enum segmentSwitches
{
SEGMENT_SIZE_FORCED = 0x00000001, /* -s: Segment size forced */
SEGMENT_NUMBER_FORCED = 0x00000002, /* -n: Segment number forced */
} segmentSwitches;
/* -R[start]:Block range start */
static int blockStart = -1;
/* -R[end]:Block range end */
static int blockEnd = -1;
/* Options for Item formatting operations */
static unsigned int itemOptions = 0;
typedef enum
{
ITEM_DETAIL = 0x00000001, // -i: Display interpreted items
ITEM_HEAP = 0x00000002, // -y: Blocks contain heap items
ITEM_INDEX = 0x00000004 // -x: Blocks contain index items
}
itemSwitches;
// Options for Control File formatting operations
typedef enum itemSwitches
{
ITEM_DETAIL = 0x00000001, /* -i: Display interpreted items */
ITEM_HEAP = 0x00000002, /* -y: Blocks contain HeapTuple items */
ITEM_INDEX = 0x00000004, /* -x: Blocks contain IndexTuple items */
ITEM_SPG_INNER = 0x00000008, /* Blocks contain SpGistInnerTuple items */
ITEM_SPG_LEAF = 0x00000010 /* Blocks contain SpGistLeafTuple items */
} itemSwitches;
/* Options for Control File formatting operations */
static unsigned int controlOptions = 0;
typedef enum
{
CONTROL_DUMP = 0x00000001, // -c: Dump control file
CONTROL_FORMAT = BLOCK_FORMAT, // -f: Formatted dump of control file
CONTROL_FORCED = BLOCK_FORCED // -S: Block size forced
}
controlSwitches;
// Possible value types for the Special Section
typedef enum
typedef enum controlSwitches
{
SPEC_SECT_NONE, // No special section on block
SPEC_SECT_SEQUENCE, // Sequence info in special section
SPEC_SECT_INDEX_BTREE, // BTree index info in special section
SPEC_SECT_INDEX_HASH, // Hash index info in special section
SPEC_SECT_INDEX_GIST, // GIST index info in special section
SPEC_SECT_INDEX_GIN, // GIN index info in special section
SPEC_SECT_ERROR_UNKNOWN, // Unknown error
SPEC_SECT_ERROR_BOUNDARY // Boundary error
}
specialSectionTypes;
CONTROL_DUMP = 0x00000001, /* -c: Dump control file */
CONTROL_FORMAT = BLOCK_FORMAT, /* -f: Formatted dump of control file */
CONTROL_FORCED = BLOCK_FORCED /* -S: Block size forced */
} controlSwitches;
/* Possible value types for the Special Section */
typedef enum specialSectionTypes
{
SPEC_SECT_NONE, /* No special section on block */
SPEC_SECT_SEQUENCE, /* Sequence info in special section */
SPEC_SECT_INDEX_BTREE, /* BTree index info in special section */
SPEC_SECT_INDEX_HASH, /* Hash index info in special section */
SPEC_SECT_INDEX_GIST, /* GIST index info in special section */
SPEC_SECT_INDEX_GIN, /* GIN index info in special section */
SPEC_SECT_INDEX_SPGIST, /* SP - GIST index info in special section */
SPEC_SECT_ERROR_UNKNOWN, /* Unknown error */
SPEC_SECT_ERROR_BOUNDARY /* Boundary error */
} specialSectionTypes;
static unsigned int specialType = SPEC_SECT_NONE;
// Possible return codes from option validation routine.
// pg_filedump doesn't do much with them now but maybe in
// the future...
typedef enum
/* Possible return codes from option validation routine. */
/* pg_filedump doesn't do much with them now but maybe in */
/* the future... */
typedef enum optionReturnCodes
{
OPT_RC_VALID, // All options are valid
OPT_RC_INVALID, // Improper option string
OPT_RC_FILE, // File problems
OPT_RC_DUPLICATE, // Duplicate option encountered
OPT_RC_COPYRIGHT // Copyright should be displayed
}
optionReturnCodes;
OPT_RC_VALID, /* All options are valid */
OPT_RC_INVALID, /* Improper option string */
OPT_RC_FILE, /* File problems */
OPT_RC_DUPLICATE, /* Duplicate option encountered */
OPT_RC_COPYRIGHT /* Copyright should be displayed */
} optionReturnCodes;
// Simple macro to check for duplicate options and then set
// an option flag for later consumption
/* Simple macro to check for duplicate options and then set */
/* an option flag for later consumption */
#define SET_OPTION(_x,_y,_z) if (_x & _y) \
{ \
rc = OPT_RC_DUPLICATE; \
@ -113,6 +130,6 @@ optionReturnCodes;
else \
_x |= _y;
#define SEQUENCE_MAGIC 0x1717 // PostgreSQL defined magic number
#define EOF_ENCOUNTERED (-1) // Indicator for partial read
#define BYTES_PER_LINE 16 // Format the binary 16 bytes per line
#define SEQUENCE_MAGIC 0x1717 /* PostgreSQL defined magic number */
#define EOF_ENCOUNTERED (-1) /* Indicator for partial read */
#define BYTES_PER_LINE 16 /* Format the binary 16 bytes per line */