Remove calls to mysql_reload() and mysql_list_fields()

[dveeden]

Closes #411

[dveeden]

Testing:

#!/bin/perl
use v5.36;
use DBI;

my $drh = DBI->install_driver("mysql");

$drh->func('reload', '127.0.0.1:3306', 'root', 'xxx', 'admin');
$drh->func('createdb', 'admin', '127.0.0.1:3306', 'root', 'xxx', 'admin');
$drh->func('dropdb', 'admin', '127.0.0.1:3306', 'root', 'xxx', 'admin');
$drh->func('shutdown', '127.0.0.1:3306', 'root', 'xxx', 'admin');

And the general log output:

2024-03-12T15:13:57.766619Z	    8 Connect	root@localhost on  using SSL/TLS
2024-03-12T15:13:57.766801Z	    8 Query	FLUSH PRIVILEGES
2024-03-12T15:13:57.792007Z	    9 Connect	root@localhost on  using SSL/TLS
2024-03-12T15:13:57.792260Z	    9 Query	CREATE DATABASE admin
2024-03-12T15:13:57.816245Z	   10 Connect	root@localhost on  using SSL/TLS
2024-03-12T15:13:57.816412Z	   10 Query	DROP DATABASE admin
2024-03-12T15:13:57.843647Z	   11 Connect	root@localhost on  using SSL/TLS
2024-03-12T15:13:57.843783Z	   11 Query	SHUTDOWN
2024-03-12T15:13:57.843829Z	   11 Query	

Note that this functionality will be removed soon-ish.

[dveeden]

And the test for mysql_list_fields() replacement:

#!/bin/perl
use v5.36;
use DBI;
use Data::Dumper;


my $dbh = DBI->connect('DBI:mysql:database=test', 'root', 'Root123@', {
    mysql_auto_reconnect => 1,
    RaiseError => 1,
    AutoCommit => 1,
});

$dbh->do('LISTFIELDS t1');

2024-03-12T15:31:15.175045Z	   10 Connect	root@localhost on test using Socket
2024-03-12T15:31:15.175285Z	   10 Query	SHOW COLUMNS FROM t1
2024-03-12T15:31:15.176284Z	   10 Quit