20 search results - page 3 / 4 » On Disk Allocation of Intermediate Query Results in Parallel... |
NIS
1998
13 years 5 months ago
1998
The execution time of a large query depends mainly on the memory utilization which should avoid disk accesses for intermediate results. Poor memory management can hurt performance ...
ICDE
2008
IEEE
14 years 7 months ago
2008
IEEE
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...
PODS
2005
ACM
14 years 5 months ago
2005
ACM
We consider a scenario where we want to query a large dataset that is stored in external memory and does not fit into main memory. The most constrained resources in such a situati...
SIGMOD
1996
ACM
13 years 10 months ago
1996
ACM
Scheduling query execution plans is an important component of query optimization in parallel database systems. The problem is particularly complex in a shared-nothing execution en...
SIGMOD
2009
ACM
14 years 6 months ago
2009
ACM
Solid state drives perform random reads more than 100x faster than traditional magnetic hard disks, while offering comparable sequential read and write bandwidth. Because of their...