Maven依赖配置 在Java项目中使用Apache Parquet,你需要在项目的pom.xml文件中添加相关的Maven依赖。以下是一个最基本的Maven依赖配置示例: AI检测代码解析 <dependencies><!-- Parquet依赖 --><dependency><groupId>org.apache.parquet</groupId><artifactId>parquet-avro</artifactId><version>1.12.0</version></d...
首先,我们需要在 Maven 项目中引入必要的依赖。不妨在pom.xml文件中加入以下内容: AI检测代码解析 <dependency><groupId>org.apache.parquet</groupId><artifactId>parquet-avro</artifactId><version>1.12.0</version></dependency><dependency><groupId>org.apache.parquet</groupId><artifactId>parquet-format</a...
首先,添加 Parquet 的 Maven 依赖: <dependency> <groupId>org.apache.parquet</groupId> <artifactId>parquet-avro</artifactId> <version>最新版本</version> </dependency> 然后,写入 Parquet 文件的示例代码: javaCopy code import org.apache.avro.generic.GenericData; import org.apache.avro.generic.Generic...
Parquet 是与语言无关的,而且不与任何一种数据处理框架绑定在一起,适配多种语言和组件,能够与 Parquet 适配的查询引擎包括 Hive, Impala, Pig, Presto, Drill, Tajo, HAWQ, IBM Big SQL等,计算框架包括 MapReduce, Spark, Cascading, Crunch, Scalding, Kite 等,数据模型包括 Avro, Thrift, Protocol Buffer, ...
首先,添加 Parquet 的 Maven 依赖: <dependency> <groupId>org.apache.parquet</groupId> <artifactId>parquet-avro</artifactId> <version>最新版本</version> </dependency> 然后,写入 Parquet 文件的示例代码: import org.apache.avro.generic.GenericData; import org.apache.avro.generic.GenericRecord; import...
然后加上Maven插件, 通过这个文件来生成Java类 <plugin><groupId>org.apache.avro</groupId><artifactId>avro-maven-plugin</artifactId><version>${avro.version}</version><executions><execution><phase>generate-sources</phase><goals><goal>schema</goal></goals><configuration><sourceDirectory>${project.bas...
对于上述显示的解决方案是在maven配置文件中不适用avro-maven-plugin插件来自动生成java类,而是在程序运行时通过 val Schema = (newSchema.Parser()).parse(newFile(file)) 来动态生成Schema来供后续AvroParquetWriter使用。
Spark SQL is Apache Spark's module for working with structured data based on DataFrames. Last Release on Dec 20, 2024 2. Apache Parquet Avro301 usages org.apache.parquet » parquet-avroApache Apache Parquet Avro Last Release on Dec 2, 2024 ...
Spark SQL is Apache Spark's module for working with structured data based on DataFrames. Last Release on Dec 20, 2024 2. Apache Parquet Avro301 usages org.apache.parquet » parquet-avroApache Apache Parquet Avro Last Release on Dec 2, 2024 ...
Native Avro support YES 1.0 Native Thrift support YES 1.0 Complex structure support YES 1.0 Future-proofed versioning YES 1.0 RLE YES 1.0 Bit Packing YES 1.0 Adaptive dictionary encoding YES 1.0 Predicate pushdown YES (68) 1.0 Column stats YES 2.0 Delta encoding YES 2.0 Native Protocol Buffers su...