[
https://issues.apache.org/jira/browse/ARROW-10623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Fleur Kelpin updated ARROW-10623:
---------------------------------
Description:
h4. How to reproduce
* Create a data frame:
{noformat}
df <- data.frame(col1 = 1:100){noformat}
* Write it to parquet file using apache 2.0.0. The demo uses R 3.6 but same
happens if you use R 4.0
* Read the parquet file using apache 1.0.1. I only tried that in R 3.6
h4. Expected
The data frame is the same as it was before:
{noformat}
structure(list(col1 = 1:100), row.names = c(NA, 100L), class =
"data.frame"){noformat}
h4. Actual
The data frame has lost some information:
{noformat}
structure(list(1:100), class = "data.frame"){noformat}
h4. Demo
I'm not sure what the easiest way is to put up a demo project for this, since
you need to switch between arrow installations. But I've created this docker
based demo:
[https://github.com/fdlk/arrow2/]
was:
h4. How to reproduce
* Create a data frame
* Write it to parquet file using apache 2.0.0. The demo uses R 3.6 but same
happens if you use R 4.0
* Read the parquet file using apache 1.0.1. I only tried that in R 3.6
h4. Expected
The data frame is the same as it was before:
{noformat}
structure(list(col1 = 1:100), row.names = c(NA, 100L), class =
"data.frame"){noformat}
h4. Actual
The data frame has lost some information:
{noformat}
structure(list(1:100), class = "data.frame"){noformat}
h4. Demo
I'm not sure what the easiest way is to put up a demo project for this, since
you need to switch between arrow installations. But I've created this docker
based demo:
[https://github.com/fdlk/arrow2/]
> Arrow 1.0.1 cannot read parquet file written by arrow 2.0.0
> -----------------------------------------------------------
>
> Key: ARROW-10623
> URL: https://issues.apache.org/jira/browse/ARROW-10623
> Project: Apache Arrow
> Issue Type: Bug
> Components: R
> Affects Versions: 1.0.1, 2.0.0
> Reporter: Fleur Kelpin
> Priority: Major
>
> h4. How to reproduce
> * Create a data frame:
> {noformat}
> df <- data.frame(col1 = 1:100){noformat}
> * Write it to parquet file using apache 2.0.0. The demo uses R 3.6 but same
> happens if you use R 4.0
> * Read the parquet file using apache 1.0.1. I only tried that in R 3.6
> h4. Expected
> The data frame is the same as it was before:
> {noformat}
> structure(list(col1 = 1:100), row.names = c(NA, 100L), class =
> "data.frame"){noformat}
> h4. Actual
> The data frame has lost some information:
> {noformat}
> structure(list(1:100), class = "data.frame"){noformat}
> h4. Demo
> I'm not sure what the easiest way is to put up a demo project for this, since
> you need to switch between arrow installations. But I've created this docker
> based demo:
> [https://github.com/fdlk/arrow2/]
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