from WARNING to NOTICE, since they are expected messages in common cases.

core file to be produced for debugging, and avoids trying to run the
normal proc-exit cleanup hooks, which are likely to cause additional
problems if the system is hosed.

this returns NULL, which confuses the code.

between signal handler and enable/disable code, avoid accumulation of
timing error due to trying to maintain remaining-time instead of
absolute-end-time, disable timeout before commit not after.

Only affects machines where MAXALIGN > 4, and is a boundary-condition
case even there, but still surprising that it's not been identified
before.  Also reduce tuple chain move give-up messages from WARNING
to DEBUG1, since they are not unexpected conditions.

conform to C99's brain-dead notion of how inline functions should work.

returning an exception when this method was called.

Modified Files:
	jdbc/org/postgresql/jdbc2/AbstractJdbc2Statement.java

< * Improve concurrency in GIST
> * Add concurrency to GIST

> * -Prevent aggregates from being used in rule WHERE clauses