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**Description**
Files with a significant amount of columns seem to freeze, while trying to convert to HDF5. On a test file with 5000 columns and 10 rows, conversion to arrow takes 0.19s, convertion t…
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When attempting to start the vaex application from Anaconda navigator, the following error is displayed:
```
Traceback (most recent call last):
File "/home/raphael/anaconda3/envs/vaex_env/bin/vae…
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I use max() on datetime type column, it return 'NaT'.
> df.max(df.Invoice_Date)
> Out[5]: array('NaT', dtype='datetime64[ns]')
> df.minmax(df.Invoice_Date)
> Out[6]:
> array([ 'NaT', '2017-01-…
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**Description**
When using vaex.agg.first() while grouping, vaex returns 0 for groups that have NaN for every value. I also noticed that it returns the first non-NA value for the group when there is …
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I use join with inplace=True , but inplace was not activated.
`df.join(df1,left_on="vendor_number", right_on="vendor_number", rprefix="_$", how="right", allow_duplication=True, inplace=True)
`
…
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**Description**
See title. In short, if you try to cast an existing string column to a 'str' datatype, the result is an object column that doesn't convert properly.
**Software information**
- Va…
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These are the 2 datasets that I primarily want to use Vaex for.
[sample_scenarios.csv](https://github.com/vaexio/vaex/files/8644685/sample_scenarios.csv)
[sample_teams.csv](https://github.com/vaex…
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**Description**
ArrowInvalid: Failed casting from large_string to string
Code： vaex.from_csv("/data/transactions.csv",convert=True,chunk_size=10000000)
When I tried to call the from_csv function to…
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My aim was to join 9 CSV files and save result as CSV files.
**Description**
Each of the actual files were having 100+ columns and size in GBs. I tried using dask and vaex for this purpose.
I …
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While doing inner join using vaex dataframe join .it throws error of row count doesnt match in dataframes .is there a property for that or Is there any work around for that .
My code
```
va…