稀疏数据:在RDBMS中高效存储和检索
Ihaveatablerepresentingvaluesofsourcefilemetricsacrossprojectrevisions,likethefollowing:我有一个表格,代表项目修订版中源文件指标的值,如下所示:RevisionFileAFileBFileCFileDFileE....
使用Lucene查询RDBMS数据库
I'veskimmedthedocsfortheJavaversionofLucene,butIcan'treallyseethetop-level"thisishowitworks"infosofar(I'mawareIneedtoRTFM,Ijustcan'tseethewoodforthetr...