1. Get DataTypeSerde in advance to avoid get temporary DataTypeSerde iterate each column 2. Iterate the original row once is enoungh for deserializing by introducing a map for record the index of each column's unique id
1. Get DataTypeSerde in advance to avoid get temporary DataTypeSerde iterate each column 2. Iterate the original row once is enoungh for deserializing by introducing a map for record the index of each column's unique id