Towards a Cost Model to Optimize User-Defined Functions in an ETL Workflow Based on User-Defined Performance Metrics.
Syed Muhammad Fawad AliRobert WrembelPublished in: ADBIS (2019)
Keyphrases
- user defined
- cost model
- user defined functions
- query processing
- relational database systems
- complex queries
- query optimization
- query execution
- sql queries
- range queries
- data types
- data warehouse
- data integration
- data warehousing
- join algorithms
- business intelligence
- query language
- database server
- regular expressions
- web services
- database systems
- query plan
- query optimizer
- query processor
- r tree
- conceptual model
- index structure
- training set