Fun with nested transactions in PL/pgSQL

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Check out this gem.

=> CREATE TABLE t (i int);

=> CREATE OR REPLACE FUNCTION test() RETURNS VOID
LANGUAGE 'plpgsql' AS '
BEGIN
INSERT INTO t VALUES (1);
EXECUTE ''BEGIN'';
DELETE FROM t;
EXECUTE ''ROLLBACK'';
RETURN;
END
';

=> SELECT test();
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.

In the log:
LOG: server process (PID 23748) was terminated by signal 11
LOG: terminating any other active server processes
LOG: background writer process (PID 23740) exited with exit code 1
FATAL: the database system is in recovery mode
LOG: all server processes terminated; reinitializing
LOG: database system was interrupted at 2004-07-17 12:18:09 PDT
LOG: checkpoint record is at 0/B116FC
LOG: redo record is at 0/B116FC; undo record is at 0/0; shutdown TRUE
LOG: next transaction ID: 565; next OID: 25419
LOG: database system was not properly shut down; automatic recovery in
progress
LOG: record with zero length at 0/B1173C
LOG: redo is not required
LOG: database system is ready

- --
Jonathan Gardner
jgardner(at)jonathangardner(dot)net
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