Even if the query panics, it should still be possible to perform a plan replayer dump.

[hawkingrei]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

for example. The bug #63862 need to dump plan replayer.

2. What did you expect to see? (Required)

success to dump plan replayer

3. What did you see instead (Required)

TiDB root@127.0.0.1:test> plan replayer dump explain SELECT /*+ read_from_storage(tikv[t0,t1,t2,t3]) */ COUNT(t2.c0), COUNT(*) FROM v
                       -> 1 AS t0 INNER JOIN tb1 AS t1 ON (t0.data_status = t1.c0) INNER JOIN tb0 AS t2 ON (t1.id = t2.c2) RIGHT JOIN
                       ->  (SELECT /*+ read_from_storage(tikv[t0]) */ t0.c0 AS col_0 FROM tb1 AS t0) AS t3 ON (t2.c1 = t3.col_0) WHER
                       -> E t2.c2 GROUP BY t0.id, t0.c0, t0.c2, t0.data_status HAVING (COUNT(*) < 87);
(1105, 'interface conversion: expression.Expression is nil, not *expression.ScalarFunction')

4. What is your TiDB version? (Required)

f9d957a