Hi, I am running postgresql 7.1.3 in RedHat Linux 7.2. From an external C application, three connections are established with postmaster (it is started with -i option) through unix sockets. Two times I received EPIPE error when trying to send a query to postmaster. This is because of the abrupt closure of pgsql backend.
Your logs should say something about why a backend crashed, and if you alter the settings will record each statement too.
-- Richard Huxton Archonet Ltd
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