此仓库是为了提升国内下载速度的镜像仓库,每日同步一次。 原始仓库:https://github.com/apache/arrow main 克隆/下载 git config --global user.name userName git config --global user.email userEmail 分支96 标签133 Rossi SunMINOR: [C++] Fix an obv
SingleDistinctToGroupBy ReplaceDistinctWithAggregate 表达式运算(Expression Evaluation) 假设现在有这样一个谓词表达式 path = '/api/v2/write' or path is null 经过语法解析和转换后,可以用如下表达式树表示: DataFusion在实施表达式运算时,使用了Arrow提供的向量化计算方法来加速运算 物理计划(ExecutionPlan) 调用Data...
优化distinct SingleDistinctToGroupBy ReplaceDistinctWithAggregate 表达式运算(Expression Evaluation) 假设现在有这样一个谓词表达式 path = '/api/v2/write' or path is null 经过语法解析和转换后,可以用如下表达式树表示: DataFusion在实施表达式运算时,使用了Arrow提供的向量化计算方法来加速运算 物理计划(ExecutionPla...
arrow.apache.org. What's in the Arrow libraries? The reference Arrow libraries contain many distinct software components: - Columnar vector and table-like containers (similar to data frames) supporting flat or nested types - Fast, language agnostic metadata messaging layer (using Google's Flatbuffe...
Arrow is an Apache Software Foundation project. Learn more at arrow.apache.org. What's in the Arrow libraries? The reference Arrow libraries contain many distinct software components: Columnar vector and table-like containers (similar to data frames) supporting flat or nested types Fast, language ...
[HIVE-19495] - Arrow SerDe itest failure [HIVE-19499] - Bootstrap REPL LOAD shall add tasks to create checkpoints for db/tables/partitions. [HIVE-19500] - Prevent multiple selectivity estimations for the same variable in conjuctions
Arrow is an Apache Software Foundation project. Learn more at arrow.apache.org. What's in the Arrow libraries? The reference Arrow libraries contain many distinct software components: Columnar vector and table-like containers (similar to data frames) supporting flat or nested types Fast, language ...
addGroupBegin().addRuleCollection(LocalRules.RBO_RULES).addRuleInstance(MycatAggDistinctRule.Config....
apache-arrow-13.0.0.dev apache-arrow-12.0.0 go/v12.0.0 apache-arrow-12.0.0.dev apache-arrow-11.0.0 go/v11.0.0 apache-arrow-10.0.1 go/v10.0.1 apache-arrow-11.0.0.dev apache-arrow-10.0.0 go/v10.0.0 apache-arrow-10.0.0.dev ...
Metadata Providers,是CBO 优化器计算 Cost 时所需元数据的提供者,包括:Selectivity(选择率)、RowCount、DistinctRowCount 等等。 Pluggable Rules,Calcite 优化规则模块,Calcite 主要有:Transformation Rule(逻辑优化规则)和 ConverterRule(Implementation Rule),用户可以自定义可扩展。