Hello! I have some questions about type casting memory usage with pyarrow Table. Let's say I have a pyarrow Table with 100 columns.
(1) if I want to cast n columns to a different type (e.g., float to int). What is the smallest memory overhead that I can do? (memory overhead of 1 column, n columns or 100 columns?) (2) if I want to cast n timestamp columns from tz-native to tz-UTC. What is the smallest memory overhead that I can do? (0, 1 column, n columns or 100 columns?) Thanks! Li
