Which of the following environment variables can help in verifying whether data is evenly partitioned across all nodes?

Which of the following environment variables can help in verifying whether data is evenly partitioned across all nodes?
A . $OSH_PRINT_SCHEMAS
B . $APT_RECORD_COUNTS
C . $APT_PARTITION_COUNT
D . $APT_DEBUG_OPERATOR

Answer: A

Explanation:

Reference: http://www.element61.be/e/resourc-detail.asp?ResourceId=188

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