发明名称 |
Apparatus and Method for Operating a Distributed Database with Foreign Tables |
摘要 |
A system includes a coordinator node and worker nodes in communication with the coordinator node. Each worker node stores data blocks. Each data block has data in a semi-structured format and each data block has an associated foreign table declaration specifying conversion of the data in the semi-structured format into a tabular format interpretable by a query language. A query processor executed by the coordinator node produces a distributed query plan in response to a query language query. The distributed query plan includes sub-queries. The sub-queries are executed by selected worker nodes of the worker nodes. The selected worker nodes use foreign table declarations to convert data in semi-structured formats into tabular formats of a distributed database to provide tabular data in response to the query language query. |
申请公布号 |
US2014067792(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
US201213600126 |
申请日期 |
2012.08.30 |
申请人 |
ERDOGAN OZGUN ALI;PATHAK SUMEDH SUHAS;MOSHAYEDI HADI;CITUS DATA BILGI ISLEMLERI TICARET A.S. |
发明人 |
ERDOGAN OZGUN ALI;PATHAK SUMEDH SUHAS;MOSHAYEDI HADI |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|