some of the column "clientport" is NULL, but if change to another query method, it appeared again. 2. another bug: sql>select * from t_ivr_result limit 1; could not allocate space for HEAPextend: failed to extend to 15096348672 for 02/04/20413.theap another time: ERROR: HEAPextend: failed to extend to 23460839424 for 02/21/22122.theap it seems monetdb applied a heap of 15G ,the RAM is 64G, root@10.187.22.175:~# free -g total used free shared buffers cached Mem: 62 45 16 0 0 43 -/+ buffers/cache: 2 60 Swap: 2 0 2 so the left memory is 16G, but failed to applied 15G heap. and the table t_ivr_result is only 3G, there is no need to apply such a large heap. sql>select count(*) from t_ivr_result; +----------+ | L1 | +==========+ | 40299239 | +----------+ 1 tuple (137.023ms) sometimes the heap is 24G: ERROR: MALException:mat.pack:could not allocate space for ERROR: HEAPextend: failed to extend to 23460839424 for 02/21/22122.theap Thanks, Meng
