Jun 19, 2018 · I couldn't find any plain English explanations regarding Apache Parquet files. Such as: What are they? Do I need Hadoop or HDFS to view/create/store them? How can I create parquet …

193 How to read a modestly sized Parquet data-set into an in-memory Pandas DataFrame without setting up a cluster computing infrastructure such as Hadoop or Spark? This is only a moderate …

Indeed, when the partitioned parquet files are stored to S3, they are usually first written to "_temporary" directory. If this directory not empty then it is a clear sign, that S3-location contains incomplete …

Sep 23, 2019 · TypeError: not a path-like object Note, the solution to How to read a Parquet file into Pandas DataFrame?. i.e pd.read_parquet(var_1, engine='fastparquet') results in TypeError: a bytes …

Oct 4, 2021 · I have these huge parquet files, stored in a blob, with more than 600k rows and I'd like to retrieve the first 100 so I can send them to my client app. This is the code I use now for this functiona...

Nov 29, 2019 · If your parquet file was not created with row groups, the read_row_group method doesn't seem to work (there is only one group!). However if your parquet file is partitioned as a directory of …

Mar 10, 2019 · You can read a file from a variable also using pandas.read_parquet using the following code. I tested this with the pyarrow backend but this should also work for the fastparquet backend.

Jul 13, 2018 · 3 I am working on a utility which reads multiple parquet files at a time and writing them into one single output file. the implementation is very straightforward. This utility reads parquet files …

How do I inspect the content of a Parquet file from the command line? The only option I see now is $ hadoop fs -get my-path local-file $ parquet-tools head local-file | less I would like to avoid

recently I published an R package to read parquet and delta files. it is basically using arrow package in it, however it deals with delta files in local & cloud.