Every article about ORC says the same thing. "Columnar storage, built-in indexes, predicate pushdown - so it's fast. " That's not an explanation.
Source: [Dev.to](https://dev.to/mohhddhassan/understanding-the-orc-file-format-why-is-it-so-fast-3pa6)
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If you are building AI-powered test automation, you may eventually run into this question: Should we use RAG or MCP? The question sounds reasonable, but it is slightly misleading. RAG and MCP solve very different problems.