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LZ4_DECOMPRESS

Section: MySQL Database System (1)
Updated: 12/11/2025
Index Return to Main Contents

NAME

lz4_decompress - decompress mysqlpump LZ4-compressed output

SYNOPSIS

lz4_decompress input_file output_file

DESCRIPTION

The lz4_decompress utility decompresses mysqlpump output that was created using LZ4 compression.

Note

lz4_decompress is deprecated as of MySQL 8.0.34; expect it to be removed in a future version of MySQL. This is because the associated mysqlpump utility is deprecated as of MySQL 8.0.34.

Note

If MySQL was configured with the -DWITH_LZ4=system option, lz4_decompress is not built. In this case, the system lz4 command can be used instead.

Invoke lz4_decompress like this:

lz4_decompress input_file output_file

Example:

mysqlpump --compress-output=LZ4 > dump.lz4
lz4_decompress dump.lz4 dump.txt

To see a help message, invoke lz4_decompress with no arguments.

To decompress mysqlpump ZLIB-compressed output, use zlib_decompress. See zlib_decompress(1).

COPYRIGHT

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.

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.

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 0211-1301 USA or see http://www.gnu.org/licenses/.