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ecto_psql_extras

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Ecto PostgreSQL database performance insights. Locks, index usage, buffer cache hit ratios, vacuum stats and more.

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ecto_psql_extras lib queries all_locks.ex
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lib/queries/all_locks.ex 

defmodule EctoPSQLExtras.AllLocks do

  def title do

    "Queries with active locks"

  end



  def query do

"""

/* Queries with active locks */



SELECT

  pg_stat_activity.pid,

  pg_class.relname,

  pg_locks.transactionid,

  pg_locks.granted,

  pg_locks.mode,

  pg_stat_activity.query AS query_snippet,

  age(now(),pg_stat_activity.query_start) AS "age"

FROM pg_stat_activity,pg_locks left

OUTER JOIN pg_class

  ON (pg_locks.relation = pg_class.oid)

WHERE pg_stat_activity.query <> '<insufficient privilege>'

  AND pg_locks.pid = pg_stat_activity.pid

  AND pg_stat_activity.pid <> pg_backend_pid() order by query_start;

"""

  end

end