LiveReorg may temporally cause SharePlex to slow down or fail in some instances with ORA-01451.
ORA-01451 "column to be modified to NULL cannot be modified to NULL"
// *Cause: the column may already allow NULL values, the NOT NULL constraint
// is part of a primary key or check constraint.
// *Action: if a primary key or check constraint is enforcing the NOT NULL
// constraint, then drop that constraint.