Did Palestinian Jews view European Jews as being ''others'', did they receive some form of prejudice, or were they viewed as being of the same stock, the same ethnicity or religious group? Did this have to do with the Zionist movement, and was integration relatively easy for the new Jewish immigrants?
I'm confused by your use of the word "Palestinian" to describe Jews after "the partition," as that term was really only used to describe Jews before 1948 (which is what I assume you mean by partition)- afterward they were considered Israeli.
That said, I have written three answers that together should cover all of the possible bases here.