Improvement of Join Algorithms for Low-Selectivity Joins on MapReduce.
Akiyoshi MatonoHirotaka OgawaIsao KojimaPublished in: ADC (2015)
Keyphrases
- join algorithms
- main memory
- cost model
- query processing
- xml databases
- join processing
- map reduce
- spatial join
- sort merge
- efficient processing
- database query processing
- b tree
- join operations
- hash join
- xml queries
- rank join
- join queries
- xml query processing
- join operator
- query optimization
- cloud computing
- data structure
- materialized views
- query execution
- r tree
- index structure
- data model
- database