mdeshmu commented on issue #25335:
URL: https://github.com/apache/superset/issues/25335#issuecomment-1765541637
maybe there is a running query that has already locked your table and that's
why your migration is stuck
SELECT
activity.pid,
activity.usename,
activity.query,
blocking.pid AS blocking_id,
blocking.query AS blocking_query
FROM pg_stat_activity AS activity
JOIN pg_stat_activity AS blocking ON blocking.pid =
ANY(pg_blocking_pids(activity.pid));
Analyze the output of this query to identify blocking queries
You will see one migration-related query blocked by another query (likely
not a migration query) that ran before it
Kill non-migration-related query to unblock your migration
https://linuxhint.com/postgres-kill-query-pid/
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