spark技术分享

2013-05-29admin阅读(1760)赞(0)

TungstenAggregationIterator — Iterator of UnsafeRows for HashAggregateExec Physical Operator

2013-05-28admin阅读(1867)赞(0)

SortBasedAggregationIterator SortBasedAggregationIterator is…​FIXME next Method [crayon-697898ab8e6 ...

2013-05-27admin阅读(1914)赞(0)

ObjectAggregationIterator ObjectAggregationIterator is…​FIXME next Method [crayon-697898ab8e8495076 ...

2013-05-26admin阅读(1751)赞(0)

AggregationIterator — Generic Iterator of UnsafeRows for Aggregate Physical Operators

2013-05-25admin阅读(1947)赞(0)

UnsafeRow — Mutable Raw-Memory Unsafe Binary Row Format

2013-05-24admin阅读(2205)赞(0)

InternalRow — Abstract Binary Row Format

2013-05-23admin阅读(1796)赞(0)

Tungsten Execution Backend (Project Tungsten)

2013-05-22admin阅读(1887)赞(0)

GenericStrategy Executing Planning Strategy — apply Method Caution FIXME

2013-05-21admin阅读(3432)赞(0)

QueryPlanner — Converting Logical Plan to Physical Trees

2013-05-20admin阅读(1917)赞(0)

Catalyst Rule — Named Transformation of TreeNodes