Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
There are a few crates in Rust which can help read and write Parquet files, among which Polars is the best one. As a matter of fact, polars is a DataFrame …
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
RuntimeError: Arrow legacy IPC format is not supported in PySpark, please unset ARROW_PRE_0_15_IPC_FORMAT
You are using PySpark 3.0+ with one (or both) of the following options.
--conf …
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
datetime
Useful extensions to the standard Python datetime features
python parser for human readable dates
Better dates & times for Python.
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
| Data Type | C | C++ | Rust | Java | Python | numpy | pyarrow | Spark SQL | SQL |
|---|---|---|---|---|---|---|---|---|---|
| 8 bit integer | short (16-bit) | int8_t | i8 | short (16-bit) | int (arbitrary precision) | int8 | TinyInt … |
Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
[Feather vs Parquet]https://github.com/wesm/feather/issues/188
https://github.com/wesm/feather
https://github.com/apache/arrow
https://stackoverflow.com/questions/54582073/sharing-objects-across-workers-using-pyarrow
https://github.com/pytorch/pytorch/issues/13039
https://issues.apache.org/jira/browse/ARROW-5130
https://uwekorn.com/2019/09/15/how-we-build-apache-arrows-manylinux-wheels.html