Difference between revisions of "H-PRIMA"
From Schema Evolution
(→Overview) |
(→Overview) |
||
| Line 1: | Line 1: | ||
== Overview == | == Overview == | ||
| − | H-PRIMA is an efficient incarnation of [[PRIMA]], which supports the same features of management and querying of transaction-database systems under schema evolution. | + | H-PRIMA is an efficient incarnation of [[PRIMA]], which supports the same features of management and querying of transaction-database systems under schema evolution. PRIMA was based on XML DB that executes XQuery queries on XML data, which is not very efficient at the current state of art. In H-PRIMA, we instead employ RDBMS-based query execution engine, to improve the performance. We also address the problem of temporal coalesce for the broken history at schema changes. |
== Data Set == | == Data Set == | ||
Revision as of 15:16, 13 June 2008
Overview
H-PRIMA is an efficient incarnation of PRIMA, which supports the same features of management and querying of transaction-database systems under schema evolution. PRIMA was based on XML DB that executes XQuery queries on XML data, which is not very efficient at the current state of art. In H-PRIMA, we instead employ RDBMS-based query execution engine, to improve the performance. We also address the problem of temporal coalesce for the broken history at schema changes.
Data Set
- Employee Data Set Generator: coming soon
- XML data (generated from H-Tables for the purpose of performance comparison between XML DB and RDBMS)
- emp100h.xml (0.9MB)
- emp100h.xml (8.9MB)
- emp100h.xml (89.2MB)
