Was playing around with the new release and changing some pl/perl
functions to use the new spi_prepare and friends when I noticed
postgresql terminating strangely, with no useful warnings at all, the
log contained the following:
Dec 7 16:58:28 [postgres] [7-1] LOG: database system is ready
Dec 7 16:58:46 [postgres] [2-1] LOG: could not receive data from
client: Connection reset by peer
Dec 7 16:58:56 [postgres] [2-1] LOG: server process (PID 26649) was
terminated by signal 11
Dec 7 16:58:56 [postgres] [3-1] LOG: terminating any other active
server processes
Dec 7 16:58:56 [postgres] [4-1] LOG: all server processes terminated;
reinitializing
Dec 7 16:58:56 [postgres] [5-1] LOG: database system was interrupted
at 2006-12-07 16:58:28 CET
After some playing around I tracked it down to a spi_prepare line where
I had specified 'integer' as type instead of 'int4'.
Tried to create a simple function to reproduce the bug:
CREATE OR REPLACE FUNCTION nocrash()
RETURNS int4 AS
$BODY$$query = spi_prepare('SELECT 1 WHERE 1 = $1','integer');
return 1;$BODY$
LANGUAGE 'plperl' VOLATILE;
But this gave a nice error message:
ERROR: error from Perl function: type "integer" does not exist at line
1.
After some more work I realized that I still had a few spi_exec_query
calls in the script and adding one to my test case caused postgresql to
terminate just like before.
CREATE OR REPLACE FUNCTION crash()
RETURNS int4 AS
$BODY$$rv = spi_exec_query("SELECT 1");
$query = spi_prepare('SELECT 1 WHERE 1 = $1','integer');
return 1;$BODY$
LANGUAGE 'plperl' VOLATILE;
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