pg_filedump - Display formatted contents of a PostgreSQL heap/index/control
file.
Copyright (c) 2002-2010 Red Hat, Inc.
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>
Version: 9.0.0
Overview:
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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.
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.
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
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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:
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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.
make
make install (if in the contrib directory)
Invocation:
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pg_filedump [-abcdfhixy] [-R startblock [endblock]] [-S blocksize] file
Defaults are: relative addressing, range of the entire file, block size
as listed on block 0 in the file
The following options are valid for heap and index files:
-a Display absolute addresses when formatting (Block header
information is always block relative)
-b Display binary block images within a range (Option will turn
off all formatting options)
-d Display formatted block content dump (Option will turn off
all other formatting options)
-f Display formatted block content dump along with interpretation
-h Display this information
-i Display interpreted item details
-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 block size to [blocksize]
-x Force interpreted formatting of block items as index items
-y Force interpreted formatting of block items as heap items
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]