Comments (20)
What is the data you are working with, please, how was it made?
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we received it from other vendor. not sure how they are generating.
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it's supporting for view of the online viewers and some of them were not able to open. i was able to load all the 25 files with ADF. if i assumed files are corrupted. it's should be load from any of the viewer or ETL.
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The indicated line in the code is reading a Parquet V1 data page, but encoding 5, DELTA_BINARY_PACKED, is a feature of Parquet V2. There's no technical reason V1 pages couldn't be decoded, but the code path does not exist.
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I appologies for that. I didn't get you. you mean my code is refering v1. current i am using 0.8.3 fastparquet version.
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No, V1 of the parquet spec, which (roughly) corresponds to V1 type data pages, which is what your file has
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Ok. As per my understanding, some of the files has been generated with V1 type and some of them are genereated with V2 type? Could you please suggest how can i verfiy? if that is the case which is the better approch to load V1 and V2 type files with fastparquet lib.
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The NotImplementedError you're encountering indicates that fastparquet encountered an encoding that it does not support. The error message specifically mentions "Encoding 5," which is likely a Parquet encoding method or type that fastparquet does not currently handle.
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some of the files has been generated with V1 type and some of them are genereated with V2 type
I suppose so? fastparquet does not expose this information, although I can see it would be useful.
To be sure, it is the combination of v1 and encoding 5 that is the problem. encoding 5 works with v2, and other encodings work with v1.
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Thank you so much.
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Given that the decoding algorithm already exists, I'll see if I can carve out a little time to implement it for v1 data pages - but I would need a file to test against.
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I didn't find the file attachment. can you share me your email id?
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You can put binary files directly into a comment box here, but maybe it needs to be inside a .zip . Alternatively, you can start a private Gist and invite me if the file is sensitive.
I can't promise when I might get a chance to look into the matter.
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I am seeing BookingTypeIDs incrementing from 1 to 12. Is this right?
Can this test file be included in the repo?
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yes. Thats the file only. please do not include in repo.
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@venkatsura , can you build and test this on your data, please?
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I am using astparquet-2023.8.0. build my code and tested. it's giving the same error.
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Thank you. It's working. May i know when it can be released to public. we are going to be deploy it to Azure. for azure lib's will be installed by pip online.
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FYI.. we are doing some testing. we identified integer values are loading with negative (-) sign. I will post the details.
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Related Issues (20)
- a python-3.12 windows wheel HOT 13
- Some `fastparquet`-related tests are failing on Python 3.10 HOT 10
- Regression due to `_from_sequence` HOT 1
- attrs persistance for Pandas HOT 1
- Nullable types for 1 row vs multiple rows HOT 3
- update_file_custom_metadata error when file has no properties.
- schema evolution when writing the row groups does not work HOT 4
- Bug loading parquet files with timezone information HOT 6
- When changing to a larger dtype, its size must be a advisor of the total size in bytes of the last axis of the array HOT 6
- PyArrow will become a required dependency with pandas 3.0
- Option to not close() after write() when writing to buffer HOT 3
- Support zoneinfo.ZoneInfo timezones
- Loading List of List of Strings leads to nans HOT 6
- Upcoming pandas (>2.2.0) raises "read-only" errors HOT 3
- Categorical dtype not preserved with fastparquet-write, pyarrow-read HOT 2
- Numpy 2: OverflowError with int96 HOT 4
- Fastparquet raises on import with numpy 2.0 rc HOT 5
- New release? HOT 4
- Issues with filtering when using to_pandas HOT 4
- No wheel file for fastparquet 2024.5.0 for Python 3.12 and Windows HOT 4
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