spark技术分享

2013-04-09admin阅读(1810)赞(0)

Aggregation Execution Planning Strategy for Aggregate Physical Operators

2013-04-08admin阅读(1820)赞(0)

PushDownOperatorsToDataSource Logical Optimization

2013-04-07admin阅读(1645)赞(0)

PruneFileSourcePartitions Logical Optimization

2013-04-06admin阅读(1573)赞(0)

OptimizeMetadataOnlyQuery Logical Optimization

2013-04-05admin阅读(1518)赞(0)

ExtractPythonUDFFromAggregate Logical Optimization

2013-04-04admin阅读(1014)赞(0)

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

2013-04-03admin阅读(1490)赞(0)

RewritePredicateSubquery Logical Optimization

2013-04-02admin阅读(1682)赞(0)

RewriteCorrelatedScalarSubquery Logical Optimization

2013-04-01admin阅读(1606)赞(0)

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

2013-03-31admin阅读(1540)赞(0)

PushPredicateThroughJoin Logical Optimization