Add to ORKGWe investigate the effect of query rewriting on joins involving set-valued attributes in object-relational database management systems. We show that by unnesting set-valued attributes (that are stored in an internal nested representation) prior to the actual set containment or intersection join we can improve the performance of query evaluation by an order of magnitude. By giving example query evaluation plans we show the increased possibilities for the query optimizer
An advantage of relational database languages is that they allow "declarative" query specification: ...
International audienceWe investigate the problem of learning join queries from user examples. The us...
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. In this paper, we study the problem o...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
Object-oriented and object-relational DBMS support set-valued attributes, which are a natural and co...
EÆcient support for set-valued attributes is likely to grow in importance as object-relational datab...
Abstract Given two collections of set objects R and S, the R on ⊆ S set con-tainment join returns al...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Abstract. A join of two relations in real databases is usually much smaller than their Cartesian pro...
Transformation of nested SQL queries into join queries is advantageous because a nested SQL query ca...
© 2017 IEEE. In this paper, we study the problem of set containment join. Given two collections R an...
An advantage of relational database languages is that they allow "declarative" query specification: ...
International audienceWe investigate the problem of learning join queries from user examples. The us...
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. In this paper, we study the problem o...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
We investigate the effect of query rewriting on joins involving set-valued attributes in object-rela...
Object-oriented and object-relational DBMS support set-valued attributes, which are a natural and co...
EÆcient support for set-valued attributes is likely to grow in importance as object-relational datab...
Abstract Given two collections of set objects R and S, the R on ⊆ S set con-tainment join returns al...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Current data models like the NF2 model and object-oriented models support set-valued attributes. Hen...
Abstract. A join of two relations in real databases is usually much smaller than their Cartesian pro...
Transformation of nested SQL queries into join queries is advantageous because a nested SQL query ca...
© 2017 IEEE. In this paper, we study the problem of set containment join. Given two collections R an...
An advantage of relational database languages is that they allow "declarative" query specification: ...
International audienceWe investigate the problem of learning join queries from user examples. The us...
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. In this paper, we study the problem o...