0I have a database with two columns: name (str) and probability (float).I am running this command:df[['name','probability']].groupby('name').prod()on a Databricks (runtime 7.3) notebook and df is a koalas dataframe.The error I get is:PandasNotImpleme...
I have a delta live table that I'm trying to run GroupBy on, but getting an error: "RuntimeError: Query function must return either a Spark or Koalas DataFrame". Here is my code:@dlt.table def groups_hierarchy(): df = dlt.read_stream("groups_h...
Hi @Preben Olsen Does @Debayan Mukherjee response answer your question? If yes, would you be happy to mark it as best so that other members can find the solution more quickly?We'd love to hear from you.Thanks!
When and why should I convert b/w a Pandas to Koalas dataframe? What are the implications?
Koalas is distributed on a Databricks cluster similar to how Spark dataframes are also distributed. Pandas dataframes only live on the spark driver in memory. If you are a pandas user and are using a multi-node cluster then you should use koalas to p...
