As a follow-up question,
I found some of the varchar column types, in which the histogram_bounds are not being surrounded in double quotes (" ") even in the default implementation.
Ex : c_name column of Customer table
I also found histogram_bounds in which only some strings are surrounded in double quotes and some are not.
Ex : c_address column of Customer table
Why are there such inconsistencies? How is this determined?
Thank you.