spark技术分享

2013-04-09admin阅读(1908)赞(0)

Aggregation Execution Planning Strategy for Aggregate Physical Operators

2013-04-08admin阅读(1910)赞(0)

PushDownOperatorsToDataSource Logical Optimization

2013-04-07admin阅读(1726)赞(0)

PruneFileSourcePartitions Logical Optimization

2013-04-06admin阅读(1645)赞(0)

OptimizeMetadataOnlyQuery Logical Optimization

2013-04-05admin阅读(1593)赞(0)

ExtractPythonUDFFromAggregate Logical Optimization

2013-04-04admin阅读(1067)赞(0)

SimplifyCasts Logical Optimization SimplifyCasts is a base logical optimization that eliminates redundant casts in ...

2013-04-03admin阅读(1572)赞(0)

RewritePredicateSubquery Logical Optimization

2013-04-02admin阅读(1760)赞(0)

RewriteCorrelatedScalarSubquery Logical Optimization

2013-04-01admin阅读(1689)赞(0)

ReplaceExpressions Logical Optimization ReplaceExpressions is a base logical optimization that replaces RuntimeRep ...

2013-03-31admin阅读(1638)赞(0)

PushPredicateThroughJoin Logical Optimization