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Exam SnowPro Core topic 1 question 1035 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 1035
Topic #: 1
[All SnowPro Core Questions]

Which statistics can be used to identify queries that have inefficient pruning? (Choose two.)

  • A. Bytes scanned
  • B. Bytes written to result
  • C. Partitions scanned
  • D. Partitions total
  • E. Percentage scanned from cache
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Suggested Answer: CD 🗳️

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MatthieuDN
2 months, 4 weeks ago
Selected Answer: CD
CD - efficient pruning is when the number of partition scanned is way lower than the total number of partitions so if you compare the two you can telle if your pruning is efficient or not.
upvoted 1 times
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Jacobr5000
4 months, 4 weeks ago
Selected Answer: CD
"The efficiency of pruning can be observed by comparing Partitions scanned and Partitions total statistics in the TableScan operators. If the former is a small fraction of the latter, pruning is efficient. If not, the pruning did not have an effect." https://docs.snowflake.com/en/user-guide/ui-query-profile#inefficient-pruning
upvoted 1 times
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nexerSnow
7 months, 1 week ago
Selected Answer: CD
https://select.dev/posts/snowflake-micro-partitions
upvoted 2 times
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icegrandpa
7 months, 1 week ago
C & D is correct.
upvoted 1 times
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