DISTRIBUTED MULTI-STEP ABSTRACT QUERIES

摘要

Techniques for incorportating query results into an abstract database are described. Embodiments receive a first set of query results produced by executing a first abstract query using a first data abstraction model against a first database. One or more mappings between the first set of query results and one or more logical fields in a second data abstraction model are then determined, where the second data abstraction model models underlying physical data in a manner making a schema of the physical data transparent to a user of the second data abstraction model. Embodiments modify one or more logical field definitions to reference the first set of query results using the determined one or more mappings, such that abstract queries can be executed against both the second database and the first set of query results using the modified second data abstraction model.