Jean-Louis Leroy <jll(at)tangram-persistence(dot)org> writes:
> Both result sets seem wrong; even more bizarre, adding a column in the
> projection affects the result set.
> In addition, Tangram's test suite runs flawlessly against Sybase,
> Mysql, Oracle and Postgres 6.4.2.
Seems fishy, but there's not enough info here to diagnose the problem.
Does EXPLAIN show nested mergejoin plans for the failing queries?
If so, that's a known bug that is fixed in 7.0.3. If not, I'd like
to see enough info to reproduce the problem --- a pg_dump database
dump and a procedure for reproducing the error after reload would
do nicely ...
regards, tom lane
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