How to Prevent Locks from Blocking Queries in Amazon Redshift
txn_owner | txn_db | xid | pid | txn_start | lock_mode | table_id | tablename | granted | blocking_pid | txn_duration | ----------+--------+---------+-------+----------------------------+---------------------+----------+-----------+---------+--------------+-----------------------------+ usr1 | db1 | 5559898 | 19813 | 2018-06-30 10:51:57.485722 | AccessExclusiveLock | 351959 | lineorder | t | | 0 days 0 hrs 0 mins 52 secs | usr1 | db1 | 5559927 | 20450 | 2018-06-30 10:52:19.761199 | AccessShareLock | 351959 | lineorder | f | 19813 | 0 days 0 hrs 0 mins 30 secs | usr1 | db1 | 5559898 | 19813 | 2018-06-30 10:51:57.485722 | AccessShareLock | 351959 | lineorder | t | | 0 days 0 hrs 0 mins 52 secs |
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