LOG:  database system was interrupted; last known up at 2015-04-19 16:50:05 BST
LOG:  database system was not properly shut down; automatic recovery in progress
LOG:  invalid record length at 0/1719C38
LOG:  redo is not required
LOG:  database system is ready to accept connections
LOG:  autovacuum launcher started
LOG:  server process (PID 90130) was terminated by signal 5: Trace/BPT trap
DETAIL:  Failed process was running: select 1;
LOG:  terminating any other active server processes
WARNING:  terminating connection because of crash of another server process
DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and repeat your command.
WARNING:  terminating connection because of crash of another server process
DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT:  In a moment you should be able to reconnect to the database and repeat your command.
LOG:  all server processes terminated; reinitializing
LOG:  database system was interrupted; last known up at 2015-04-19 18:13:20 BST
LOG:  database system was not properly shut down; automatic recovery in progress
LOG:  invalid record length at 0/1719CA8
LOG:  redo is not required
LOG:  database system is ready to accept connections
LOG:  autovacuum launcher started