mark partition topn phase to notice be to handle passthrough logic well, this pr is fe part code. be side logic: the the phase equals to PTopNPhase.TWO_PAHSE_GLOBAL, it should skip the bypass logic and do the second phase ptopn operation anyway.
mark partition topn phase to notice be to handle passthrough logic well, this pr is fe part code. be side logic: the the phase equals to PTopNPhase.TWO_PAHSE_GLOBAL, it should skip the bypass logic and do the second phase ptopn operation anyway.