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'\" t
.\" Title: lz4_decompress
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\" Date: 06/13/2025
.\" Manual: MySQL Database System
.\" Source: MySQL 8.0
.\" Language: English
.\"
.TH "LZ4_DECOMPRESS" "1" "06/13/2025" "MySQL 8\&.0" "MySQL Database System"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
lz4_decompress \- decompress mysqlpump LZ4\-compressed output
.SH "SYNOPSIS"
.HP \w'\fBlz4_decompress\ \fR\fB\fIinput_file\fR\fR\fB\ \fR\fB\fIoutput_file\fR\fR\ 'u
\fBlz4_decompress \fR\fB\fIinput_file\fR\fR\fB \fR\fB\fIoutput_file\fR\fR
.SH "DESCRIPTION"
.PP
The
\fBlz4_decompress\fR
utility decompresses
\fBmysqlpump\fR
output that was created using LZ4 compression\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
.PP
\fBlz4_decompress\fR
is deprecated as of MySQL 8\&.0\&.34; expect it to be removed in a future version of MySQL\&. This is because the associated
\fBmysqlpump\fR
utility is deprecated as of MySQL 8\&.0\&.34\&.
.sp .5v
.RE
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
.PP
If MySQL was configured with the
\fB\-DWITH_LZ4=system\fR
option,
\fBlz4_decompress\fR
is not built\&. In this case, the system
\fBlz4\fR
command can be used instead\&.
.sp .5v
.RE
.PP
Invoke
\fBlz4_decompress\fR
like this:
.sp
.if n \{\
.RS 4
.\}
.nf
lz4_decompress \fIinput_file\fR \fIoutput_file\fR
.fi
.if n \{\
.RE
.\}
.PP
Example:
.sp
.if n \{\
.RS 4
.\}
.nf
mysqlpump \-\-compress\-output=LZ4 > dump\&.lz4
lz4_decompress dump\&.lz4 dump\&.txt
.fi
.if n \{\
.RE
.\}
.PP
To see a help message, invoke
\fBlz4_decompress\fR
with no arguments\&.
.PP
To decompress
\fBmysqlpump\fR
ZLIB\-compressed output, use
\fBzlib_decompress\fR\&. See
zlib_decompress(1)\&.
.SH "COPYRIGHT"
.br
.PP
Copyright \(co 1997, 2025, Oracle and/or its affiliates.
.PP
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
.PP
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
.sp
.SH "SEE ALSO"
For more information, please refer to the MySQL Reference Manual,
which may already be installed locally and which is also available
online at http://dev.mysql.com/doc/.
.SH AUTHOR
Oracle Corporation (http://dev.mysql.com/).
|
