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Parquet-format Alternatives
Similar projects and alternatives to parquet-format
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better parquet-format alternative or higher similarity.
parquet-format reviews and mentions
Posts with mentions or reviews of parquet-format.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-11-16.
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Summing columns in remote Parquet files using DuckDB
Right, there's all sorts of metadata and often stats included in any parquet file: https://github.com/apache/parquet-format#file-format
The offsets of said metadata are well-defined (i.e. in the footer) so for S3 / blob storage so long as you can efficiently request a range of bytes you can pull the metadata without having to read all the data.
- FLaNK Stack for 4th of July
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I have question related to Parquet files and AWS Glue
As i read here https://github.com/apache/parquet-format/blob/master/LogicalTypes.md , they are store in Integer formats and these integers represent the number of days (for Date) or number of milliseconds, microseconds or nanoseconds (for DateTime) since 1970-01-01. This works as expected with the parquet file that written by our ETL tool from internal database --> S3, all Data/DateTime columns are Integers, means that in Glue Job, i have to convert these Integers back to Date/Datetime value to do some transformation on them. But when parquet files are written by Spark, they are Date/DateTime (or TimeStamp to be more concise) format not Integers (i checked by read these files again in other Glue Job) and that make me confused.
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Parquet: More than just “Turbo CSV”
Date is confusing with a timezone (UTC or otherwise) and the doco makes no such suggestion.
The Parquet datatypes documentation is pretty clear that there is a flag isAdjustedToUTC to define if the timestamp should be interpreted as having Instant semantics or Local semantics.
https://github.com/apache/parquet-format/blob/master/Logical...
Still no option to include a TZ offset in the data (so the same datum can be interpreted with both Local and Instant semantics) but not bad really.
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A note from our sponsor - SaaSHub
www.saashub.com | 28 Apr 2024
Stats
Basic parquet-format repo stats
4
1,637
7.4
6 days ago
apache/parquet-format is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of parquet-format is Java.
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