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| ID | Field1 | Field2 | g1 | g2 |
|---|---|---|---|---|
| 1 | A | A | g1A description | g2A description |
| 2 | B | B | g1B description | g2B description |
| 3 | C | C | g1C description | g2C description |
Warning: Null value is eliminated by an aggregate or other SET operation.