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SELECT 4
| jsonb_object_agg |
|---|
| {"a": "foo,bar", "b": "one", "special": "comma,separated"} |
| {"in": "either", "no": "collision"} |
| {"and": ["arrays"], "complex": {"key": "value"}, "objects": {}} |
| {"two": "2,2", "numbers": "nullable?"} |
SELECT 4