Query optimization with value path materialization in column-stored DWMS.
Bin ZhangXiaoLing XiaXiaohu HuangMei WangJiajin LePublished in: COM.Geo (2012)
Keyphrases
- query optimization
- query execution
- efficient query processing
- database systems
- cost model
- database
- query processing
- multidatabase systems
- cost estimation
- data placement
- query optimizer
- xml data
- query scheduling
- approximate query answering
- selectivity estimation
- distributed databases
- query rewriting
- path expressions
- continuous queries
- cardinality estimation
- join queries
- data partitioning
- query plan
- complex queries
- data cube