Martin, I just merged recent changes from Feb2013 into default, and while doing so resolved --- hopefully correctly; see below --- some conflicts that occurred in opt_evaluate.c & mal_dataflow.c . In fact, (1) I first merged up until before your changeset that introduced the new multiple worker pools, cf., http://dev.monetdb.org/hg/MonetDB/rev/10125a9c3976 (2) then merged only that very changeset, cf., http://dev.monetdb.org/hg/MonetDB/rev/1eea7fa4cc7c (3) and finally merge the rest, cf., http://dev.monetdb.org/hg/MonetDB/rev/3e3d7d5f8dc9 During (1), I resolved some conflicts in opt_evaluate.c due to http://dev.monetdb.org/hg/MonetDB/rev/62ed11377998 I hope, I did this correctly. However, there are still some differences in opt_evaluate.c between Feb2013 & default; cf., hg diff -p -r Feb2013 -r default monetdb5/optimizer/opt_evaluate.c Could you please check, whether these are OK? During (2), I resolved some conflicts in mal_dataflow.c due to http://dev.monetdb.org/hg/MonetDB/rev/4c47797192f4 I hope, I did this correctly. However, there are still some differences in mal_dataflow.c between Feb2013 & default; cf., hg diff -p -r Feb2013 -r default monetdb5/mal/mal_dataflow.c Could you please check, whether these are OK? It appears, that after (2), some tests in sql/jdbc/tests/Tests/ run into a timeout (only when run multi-threaded, i.e., not when run single-threaded) --- I have not yet been able to find out why ... Thanks! Stefan -- | Stefan.Manegold@CWI.nl | DB Architectures (DA) | | www.CWI.nl/~manegold/ | Science Park 123 (L321) | | +31 (0)20 592-4212 | 1098 XG Amsterdam (NL) |