So i’m working on a university project but i have a problem that’s really starting to bother me. I am trying to update my database several times with different values, except that only the last value will be taken into account : they’re overwriting themselves. My code : And my SQL method is like this : So for example if
Tag: overwrite
spark [dataframe].write.option(“mode”,“overwrite”).saveAsTable(“foo”) fails with ‘already exists’ if foo exists
I think I am seeing a bug in spark where mode ‘overwrite’ is not respected, rather an exception is thrown on an attempt to do saveAsTable into a table that already exists (using mode ‘overwrite’). …
Hive Insert Overwrite Table
I’m new to Hive and I wanted to know if insert overwrite will overwrite an existing table I have created. I want to filter an already created table, let’s call it TableA, to only select the rows where …