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    my $passed_sql = shift;
    my $sql = "SELECT COUNT(*) etc blah blah";
...
    print STDERR "\nTrying[3] interpolated: $passed_sql\n";
    die if $sql ne $passed_sql; # Might as well ...
    my ($total_cols) = $dbh->selectrow_array($sql) or die($dbh->errstr
+);