In the screenshot, the last sentence reads:
>"This will return a new DataFrame with all the columns from both tables, and only the rows that match the 'key' column".
That is incorrect. The 'how' parameter is 'left' not 'inner'.
>"This will return a new DataFrame with all the columns from both tables, and only the rows that match the 'key' column".
That is incorrect. The 'how' parameter is 'left' not 'inner'.
That this is not a problem for many is worrying.