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datetime 8×Ö½Ú ×î´óÖµ:9999-12-31 23:59:59

timestamp 4×Ö½Ú ×î´óÖµ:2038-01-19 11:14:07

int 4×Ö½Ú ÓзûºÅ×î´óÖµ:2147483647,ת³Éʱ¼ä´Á:2038-01-19 03:14:07

4×Ö½Ú ÎÞ·ûºÅ×î´óÖµ:4294967295,ת³Éʱ¼ä´Á:2106-02-07 06:28:15