t/thread-index-gap: support older DBI

...by avoiding selectall_array in favor of selectall_arrayref.
Tested with DBI 1.627.

1 files changed, 5 insertions, 2 deletions

diff --git a/t/thread-index-gap.t b/t/thread-index-gap.t
index f4e4bd09..83c3707d 100644
--- a/t/thread-index-gap.t
+++ b/t/thread-index-gap.t
@@ -45,12 +45,15 @@ for my $msgs (['orig', reverse @msgs], ['shuffle', shuffle(@msgs)]) {
         }
         $im->done;
         my $over = $ibx->over;
-        my @tid = $over->dbh->selectall_array('SELECT DISTINCT(tid) FROM over');
+        my $dbh = $over->dbh;
+        my $tid = $dbh->selectall_arrayref('SELECT DISTINCT(tid) FROM over');
+        my @tid = map { $_->[0] } @$tid;
         is(scalar(@tid), 1, "only one thread initially ($desc)");
         $over->dbh_close;
         run_script([qw(-index --reindex --rethread), $ibx->{inboxdir}]) or
                 BAIL_OUT 'rethread';
-        @tid = $over->dbh->selectall_array('SELECT DISTINCT(tid) FROM over');
+        $tid = $dbh->selectall_arrayref('SELECT DISTINCT(tid) FROM over');
+        @tid = map { $_->[0] } @$tid;
         is(scalar(@tid), 1, "only one thread after rethread ($desc)");
 }