Heroku Postgres - terminate hung query (idle in transaction)

Question

I\'m using Heroku with the Crane Postgres option and I was running a query on the database from my local machine when my local machine crashed. If I run

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Answer 1

We can use the following to achieve it in a single query:

SELECT pg_cancel_backend(pid), pg_terminate_backend(pid) FROM pg_stat_activity WHERE state != 'idle';