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#!/usr/bin/perl
# Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
#
# 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; version 2 of the License.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# Convert given tables in a database to MYISAM
use DBI;
use Getopt::Long;
$opt_help=$opt_version=$opt_verbose=$opt_force=0;
$opt_user=$opt_database=$opt_password=undef;
$opt_host="localhost";
$opt_socket="";
$opt_engine="MYISAM";
$opt_port=0;
$exit_status=0;
GetOptions(
"e|engine|type=s" => \$opt_type,
"f|force" => \$opt_force,
"help|?" => \$opt_help,
"h|host=s" => \$opt_host,
"p|password=s" => \$opt_password,
"u|user=s" => \$opt_user,
"v|verbose" => \$opt_verbose,
"V|version" => \$opt_version,
"S|socket=s" => \$opt_socket,
"P|port=i" => \$opt_port
) || usage(0);
usage($opt_version) if ($#ARGV < 0 || $opt_help || $opt_version);
$opt_database=shift(@ARGV);
if (grep { /^$opt_engine$/i } qw(HEAP MEMORY BLACKHOLE))
{
print "Converting to '$opt_engine' would delete your data; aborting\n";
exit(1);
}
$connect_opt="";
if ($opt_port)
{
$connect_opt.= ";port=$opt_port";
}
if (length($opt_socket))
{
$connect_opt.=";mysql_socket=$opt_socket";
}
$dbh = DBI->connect("DBI:mysql:$opt_database:${opt_host}$connect_opt",
$opt_user,
$opt_password,
{ PrintError => 0})
|| die "Can't connect to database $opt_database: $DBI::errstr\n";
my @tables;
push(@ARGV, "%") if(!@ARGV);
foreach $pattern (@ARGV)
{
my ($sth,$row);
$sth=$dbh->prepare("SHOW TABLES LIKE ?");
$rv= $sth->execute($pattern);
if(!int($rv))
{
warn "Can't get tables matching '$pattern' from $opt_database; $DBI::errstr\n";
exit(1) unless $opt_force;
}
while (($row = $sth->fetchrow_arrayref))
{
push(@tables, $row->[0]);
}
$sth->finish;
}
print "Converting tables:\n" if ($opt_verbose);
foreach $table (@tables)
{
my ($sth,$row);
# Check if table is already converted
$sth=$dbh->prepare("show table status like '$table'");
if ($sth->execute && ($row = $sth->fetchrow_arrayref))
{
if (uc($row->[1]) eq uc($opt_engine))
{
print "$table already uses the '$opt_engine' engine; Ignored\n";
next;
}
}
print "converting $table\n" if ($opt_verbose);
$table=~ s/`/``/g;
if (!$dbh->do("ALTER TABLE `$table` ENGINE=$opt_engine"))
{
print STDERR "Can't convert $table: Error $DBI::errstr\n";
exit(1) if (!$opt_force);
$exit_status=1;
}
}
$dbh->disconnect;
exit($exit_status);
sub usage
{
my($version)=shift;
print "$0 version 1.1\n";
exit(0) if ($version);
print <<EOF;
Conversion of a MySQL tables to other storage engines
Usage: $0 database [table[ table ...]]
If no tables has been specifed, all tables in the database will be converted.
You can also use wildcards, ie "my%"
The following options are available:
-f, --force
Continue even if there is some error.
-?, --help
Shows this help
-e, --engine=ENGINE
Converts tables to the given storage engine (Default: $opt_engine)
-h, --host=HOST
Host name where the database server is located. (Default: $opt_host)
-p, --password=PASSWORD
Password for the current user.
-P, --port=PORT
TCP/IP port to connect to if host is not "localhost".
-S, --socket=SOCKET
Socket to connect with.
-u, --user=USER
User name to log into the SQL server.
-v, --verbose
This is a test specific option that is only used when debugging a test.
Print more information about what is going on.
-V, --version
Shows the version of this program.
EOF
exit(1);
}