spark技术分享

2012-04-25admin阅读(2193)赞(0)

FileFormat — Data Sources to Read and Write Data In Files

2012-04-24admin阅读(1579)赞(0)

Catalyst DSL — Implicit Conversions for Catalyst Data Structures

2012-04-23admin阅读(1726)赞(0)

CommandUtils — Utilities for Table Statistics

2012-04-22admin阅读(1534)赞(0)

EstimationUtils EstimationUtils is…​FIXME getOutputSize Method [crayon-6926fd3911606554467699/] get ...

2012-04-21admin阅读(1426)赞(0)

ColumnStat — Column Statistics

2012-04-20admin阅读(1686)赞(0)

CatalogStatistics — Table Statistics From External Catalog (Metastore)

2012-04-19admin阅读(1591)赞(0)

Cost-Based Optimization (CBO) of Logical Query Plan

2012-04-18admin阅读(1501)赞(0)

EquivalentExpressions EquivalentExpressions is…​FIXME Table 1. EquivalentExpressions’s Interna ...

2012-04-17admin阅读(2032)赞(0)

Subexpression Elimination In Code-Generated Expression Evaluation (Common Expression Reuse)

2012-04-16admin阅读(1686)赞(0)

Adaptive Query Execution Adaptive Query Execution (aka Adaptive Query Optimisation or Adaptive Optimisation) is an ...