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. 2024 Nov 30;14:29819. doi: 10.1038/s41598-024-81609-2

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© The Author(s) 2024

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Fig. 1 — (A) Example of the usage of composite keys, partition keys: field_trial_ID and sort keys: record_type. The sort keys highlighted in yellow show that each partition key can have a variable number of samples for a sort key. The sort keys highlighted in blue show that missing values (NA) are allowed. The sort keys highlighted in green show not all sort keys are required for each partition key. (B) Example of the AWS DynamoDB JSON format.