Performance of LIKE queries on multmillion row tables, MySQL
From anybody with real experience, how do LIKE queries perform in MySQL on multi-million row tables, in terms of speed and efficiency, if the field has a plain INDEX?
processing-efficiency
Laravel eager loading vs explicit join
This might sound like an obvious question but I just want to get some reassurance.
Why does concatenation of DataFrames get exponentially slower?
I have a function which processes a DataFrame, largely to process data into buckets create a binary matrix of features in a particular column using pd.get_dummies(df[col]).