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- The empty string is treated differently (see KFSMI-562)
- Sorting involving nulls works differently (see KULPURAP-2037)
- Avoiding class cast exceptions when getting a count (see KULRNE-6028)
- MySQL gets mad when columns in a parent/child relationship are different lengths (see KULDBA-1167)
- Initially, we had a column default for obj_id in Oracle, but since we couldn't do the same in MySQL, it was removed. (KULDBA-1169)