Add arrow io format#10580
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alexey-milovidov merged 39 commits intoClickHouse:masterfrom May 10, 2020
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| namespace DB | ||
| { | ||
| class Context; |
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Unused forward declaration.
| copyData(in, file_buffer); | ||
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| std::unique_ptr<arrow::Buffer> local_buffer = std::make_unique<arrow::Buffer>(file_data); |
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Is it possible to read data without excessive copying and allocating O(n) memory?
That's extremely suboptimal.
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| std::unique_ptr<arrow::Buffer> local_buffer = std::make_unique<arrow::Buffer>(file_data); | ||
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| std::shared_ptr<arrow::io::RandomAccessFile> in_stream(new arrow::io::BufferReader(*local_buffer)); |
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Changelog category (leave one):
Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
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Detailed description / Documentation draft:
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By adding documentation, you'll allow users to try your new feature immediately, not when someone else will have time to document it later. Documentation is necessary for all features that affect user experience in any way. You can add brief documentation draft above, or add documentation right into your patch as Markdown files in docs folder.
If you are doing this for the first time, it's recommended to read the lightweight Contributing to ClickHouse Documentation guide first.