| 摘要 |
An example method for processing a federated query includes determining, at a data federation tool, a source query embedded in a federated query. The source query includes a name of a table and one or more conditions for selecting data from the table. The method also includes sending, at the data federation tool, a request to compile a software package in accordance with a view description of the table to a data slave. The software package includes a set of source files and is associated with the table. The method further includes sending the source query to the data slave and receiving, at the data federation tool, the result of the source query from the data slave. |
| 主权项 |
1. A method of processing a federated query, comprising:
determining, at a data federation tool, a source query embedded in a federated query, the source query including a name of a table and one or more conditions for selecting data from the table; sending, at the data federation tool, a request to compile a software package in accordance with a view description of the table to a data slave, the software package including a set of source files and associated with the table; sending the source query to the data slave; and receiving, at the data federation tool, the result of the source query from the data slave. |
