pqrs VS Apache Parquet

This won't let you ETL from PG to parquet, but I used this in anger the other day https://github.com/manojkarthick/pqrs Worked quite well for my purposes!

Shameless plug, my project exposes the common Parquet operations using a Rust CLI tool using the Rust API for Apache Arrow and can be used without any Java/Hadoop/Spark dependencies. Also available a static binary.

https://github.com/manojkarthick/pqrs

Apache Parquet

This go implementation, other than common advantages from go itself (small single executable, support multiple platforms, speed, etc.), has some neat features compare with Java parquet tool and Python one like:

Hi, I've been trying to write parquet files on android for the past couple of days, and have really been struggling to find a solution. My original hypothesis was to just use the java parquet implementation (https://github.com/apache/parquet-mr), but I've since realized that not all java libraries play well with Android. I've gone through essentially dependency hell trying to franken-fit the library into my project, and imported as much as i could before hitting walls such as this one (https://github.com/mockito/mockito/issues/841).

Like many of you probably do, I tend to work with Parquet files a lot. parquet-tools has been my tool of choice for inspecting parquet files, but that has been deprecated recently. So, I created a replacement for it using Rust and Apache Arrow.