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How do hive to table two unrelated to joining together into a table?
Time：10-27
Example: Table A table B Field: a field: b A1 b1 A2 b2 A3 b3 How to splice into: fields a, b A1 b1 A1 b2 A1 b3 A2 b1 A2 b2 A2 b3 A3 b1 A3 b2 A3 b3 O guide
