[ntuple] split loading and processing meta-data #15909
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Adds RPageSource::LoadStructure[Impl](). This allows to load header and footer without processing them. Decompression and deserialization will still happen in Attach(), which calls LoadStructure if it hasn't been called before. This will facilitate asynchronous open of files for RDF MT scheduling.
Test Results 13 files 13 suites 3d 4h 13m 35s ⏱️ Results for commit b1f7e20. |
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Adds
RPageSource::LoadStructure[Impl](). This allows to load header and footer without processing them. Decompression and deserialization will still happen in Attach(), which calls LoadStructure if it hasn't been called before.This will facilitate asynchronous open of files for RDF MT scheduling.