How to download only desired entry rows from Eland?

[IavTavares]

Currently, if I want to create a dataframe with specific entries from an index, using Eland, I must first download a dataframe with all the columns, and then filter them out, locally... this is hardly desirable in terms of CPU and RAM local usage. Is there a way to push the filtering to the ES nodes instead, and simply download the already filtered dataframe?

[sethmlarson]

You can filter out which columns to download either using the columns=[...] parameter on the DataFrame constructor or you can use the DataFrame.filter() method to cut down on the columns to be requested before calling .to_pandas().