What are the pros and cons of the Apache Parquet format compared …
Apr 24, 2016 · 30,36,2 Parquet files are most commonly compressed with the Snappy compression algorithm. Snappy compressed files are splittable and quick to inflate. Big data systems want to …
Reading / Fixing a corrupt parquet file - Stack Overflow
Sep 3, 2024 · Reading / Fixing a corrupt parquet file Asked 1 year, 4 months ago Modified 7 months ago Viewed 2k times
Is it possible to read parquet files in chunks? - Stack Overflow
Nov 29, 2019 · The Parquet format stores the data in chunks, but there isn't a documented way to read in it chunks like read_csv. Is there a way to read parquet files in chunks?
Extension of Apache parquet files, is it '.pqt' or '.parquet'?
Oct 19, 2021 · I wonder if there is a consensus regarding the extension of parquet files. I have seen a shorter .pqt extension, which has typical 3-letters (like in csv, tsv, txt, etc) and then there is a rather …
What file extension is the correct way to name parquet files?
Jun 3, 2025 · <file-name>.parquet : 1) This is the standard and most widely accepted naming convention. 2) The compression codec is stored in the Parquet file metadata, not in the filename. 3) …
Create Parquet files from stream in python in memory-efficient manner
Nov 11, 2020 · 16 It appears the most common way in Python to create Parquet files is to first create a Pandas dataframe and then use pyarrow to write the table to parquet. I worry that this might be …
Is it better to have one large parquet file or lots of smaller parquet ...
Mar 21, 2017 · The only downside of larger parquet files is it takes more memory to create them. So you can watch out if you need to bump up Spark executors' memory. row groups are a way for Parquet …
How to view Apache Parquet file in Windows? [closed]
Jun 19, 2018 · 99 What is Apache Parquet? Apache Parquet is a binary file format that stores data in a columnar fashion. Data inside a Parquet file is similar to an RDBMS style table where you have …
Updating values in apache parquet file - Stack Overflow
Mar 3, 2015 · I have a quite hefty parquet file where I need to change values for one of the column. One way to do this would be to update those values in source text files and recreate parquet file but I'm …
Read multiple parquet files in a folder and write to single csv file ...
Aug 5, 2018 · I need to read these parquet files starting from file1 in order and write it to a singe csv file. After writing contents of file1, file2 contents should be appended to same csv without header.