PARQUET-84: Avoid reading rowgroup metadata in memory on the client side.#45
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julienledem wants to merge 12 commits intoapache:masterfrom
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PARQUET-84: Avoid reading rowgroup metadata in memory on the client side.#45julienledem wants to merge 12 commits intoapache:masterfrom
julienledem wants to merge 12 commits intoapache:masterfrom
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fix comment: [ startOffset, endOffset )
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LGTM! |
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@tsdeng and the build is green! |
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This will improve reading big datasets with a large schema (thousands of columns)
Instead rowgroup metadata can be read in the tasks where each tasks reads only the metadata of the file it's reading