Query optimization using column statistics in hive.
Anja GruenheidEdward OmiecinskiLeo MarkPublished in: IDEAS (2011)
Keyphrases
- query optimization
- database systems
- cost model
- multidatabase systems
- query processing
- cardinality estimation
- query scheduling
- data placement
- semantic query optimization
- cost estimation
- query execution
- query optimizer
- selectivity estimation
- query optimizers
- recursive queries
- efficient execution
- query execution plan
- queries involving
- query plan
- continuous queries
- approximate query answering
- execution plan
- building blocks
- cloud computing
- data sets
- database