Orc

提供 Apache ORC 的参考资料，包含文件结构与索引、模式类型与演进、压缩编解码器、orc-tools 命令行及 Python/Java 读写 API、Hive ACID 和 Spark 集成、Bloom filter 与性能调优。

热度 54.91

最近更新 2026-05-11 17:35:51

分类：知识依赖：代码执行 / 读写文件应用场景：概念解释 / 数据处理 / 教学辅导

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add orc

Metadata

name: orc
version: 1.0.0
description: Apache ORC columnar storage format reference. File structure with stripes and indexes, schema types with evolution rules, compression codecs (ZLIB/SNAPPY/ZSTD), orc-tools CLI, Python/Java writer APIs, Hive ACID transactions, Spark integration, and performance tuning with bloom filters.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: ["orc","columnar","hadoop","hive","spark","data","analytics"]
category: data

Apache ORC columnar storage format reference.

Command	Description
`intro`	ORC overview, file structure, vs Parquet
`schema`	Types, complex types, schema evolution
`compression`	ZLIB/SNAPPY/LZO/ZSTD codecs, ratios
`read`	orc-tools CLI, Python/Java read APIs
`write`	Writer APIs, stripe/buffer sizing
`hive`	Hive integration, ACID transactions
`spark`	Spark ORC read/write, pushdown
`performance`	Bloom filters, indexes, vectorized reads