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Some personal data columns need to be masked instead of being pruned(Parquet-1791). We need a tool to replace the raw data columns with masked value. The masked value could be hash, null, redact etc. …
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### Describe the enhancement requested
This would fix two issues for the price of one:
1. Reading from Parquet into schemas that use the new `STRING_VIEW` type
2. Reading `LARGE_STRING_ARRAY` f…
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### What happens?
duckdb.duckdb.OutOfMemoryException: Out of Memory Error: Failed to allocate block of 262144 bytes (bad allocation)
### To Reproduce
```
[root@prod ~]# ls -lh /data/prod/
t…
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I was opening a Parquet file that contained structs but I'm not able to see or query the contents of those structs.
Since DuckDB does support these types, I was expecting them to work as well.
The…
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Maybe something like:
```ts
await table.cache(async () => {
// if stuff1.parquet exists, just load it.
// otherwise, run this function
}, "./temp/stuff1.parquet)
```
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Is it possible to write to parquet file using this library? (quickly checked the code, didn't see any write function).
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://crates.io/crates/polars) of Polars.
### Rep…
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Hi @jerolba . First, wanted to thank you for the great series of blog posts on Parquet and Java! This is the best piece of information on the topic I found so far.
I have a question about the Carp…
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Hi Parquet developers,
I have a question regarding the current implementation of Parquet. As far as I understand, Parquet does not support writing multiple row groups simultaneously. Could you plea…
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https://github.com/NOAA-OWP/t-route/blob/5bef6342109fd09db27be731225e7c28e968061b/src/troute-network/troute/AbstractNetwork.py#L754
I have run into this in different scenarios, and typically end up…