# Usage: &randKey($table, $select);
sub randKey {
my ($table, $select) = @_;
- my $rand = int(rand(&countKeys($table) - 1));
- my $query = "SELECT $select FROM $table LIMIT $rand,1";
- if ($param{DBType} =~ /^pg/i) {
- $query =~ s/$rand,1/1,$rand/;
+ my $rand = int(rand(&countKeys($table)));
+ my $query = "SELECT $select FROM $table LIMIT 1 OFFSET $rand";
+ if ($param{DBType} =~ /^mysql$/i) {
+ # WARN: only newer MySQL supports "LIMIT limit OFFSET offset"
+ $query = "SELECT $select FROM $table LIMIT $rand,1";
}
-
my $sth = $dbh->prepare($query);
&SQLDebug($query);
&WARN("randKey($query)") unless $sth->execute;
# create database not needed for SQLite
}
- foreach ( qw(botmail factoids rootwarn seen stats) ) {
+ foreach ( qw(botmail connections factoids rootwarn seen stats) ) {
if (exists $db{$_}) {
$cache{has_table}{$_} = 1;
next;