Query optimization Approach with Shuffle Intermediate Cache Layer for Spark SQL.
Mingyu ZhaiAibo SongJingyi QiuXuechun JiQingxi WuPublished in: IPCCC (2019)
Keyphrases
- query optimization
- query optimizer
- query processing
- recursive queries
- query optimizers
- execution plan
- database systems
- relational database systems
- cost model
- query language
- cardinality estimation
- multidatabase systems
- cost estimation
- sql queries
- query execution
- join queries
- queries involving
- data types
- relational databases
- xml data
- prefetching
- query execution plan
- data placement
- data access
- query scheduling
- query result
- database
- databases
- duplicate elimination
- database applications
- selectivity estimation
- efficient processing
- database server
- index structure
- sql server
- query execution plans
- data management
- query evaluation
- multiple queries
- relational model
- continuous queries
- query plan
- aggregate queries
- storage structures
- data integration
- database technology