Insert multiple jdbc rows into the same ES document under nested field


I would like to insert in the same elasticsearch document, all jdbc rows with the same ID into a nested field called "logs".
Can someone explain me how to convert jdbc input rows of logs into the following JSON structure :

{ "id";"4dca1978-a591-4a6e-a431-1e9b0ee7a2e1", "logs":[{ "jdbcColumn1":"value1", "jdbcColumn2":"value2", "jdbcColumn3":"value3" },{ "jdbcColumn1":"value1", "jdbcColumn2":"value2", "jdbcColumn3":"value3" }] }

Thank you!

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