Snowflake pandas pd_writer writes out tables with NULLs
问题 I have a Pandas dataframe that I'm writing out to Snowflake using SQLAlchemy engine and the to_sql function. It works fine, but I have to use the chunksize option because of some Snowflake limit. This is also fine for smaller dataframes. However, some dataframes are 500k+ rows, and at a 15k records per chunk, it takes forever to complete writing to Snowflake. I did some research and came across the pd_writer method provided by Snowflake, which apparently loads the dataframe much faster. My