Answer: TableScan

The correct answer is A (TableScan) because the Snowflake documentation for GET_QUERY_OPERATOR_STATS specifically shows that the TableScan operator contains pruning information, including 'partitions scanned' and 'partitions total' metrics that directly indicate pruning efficiency. The community discussion shows that users who referenced the official documentation (with upvotes) confirmed TableScan as the correct operator, while ExternalScan (B) is incorrect as it relates to reading external data sources rather than partition pruning within Snowflake tables.

Author: LeetQuiz Editorial Team