Re: async problems?

Mark Harrison  writes:
>      res = PQexec(conn,"DECLARE cur CURSOR FOR select * from assets limit 8888");    printf("PQexec declare %s\n", PQresStatus(PQresultStatus(res)));
>      PQclear(res);

>      rc = PQsendQuery(conn, fetchstr);
>      printf("PQsendQuery %d\n", rc);
>      PQclear(res);

You just re-cleared an already cleared result.  This probably caused a
double free, corrupting malloc's datastructures.  The later crash within
malloc is not surprising...

			regards, tom lane