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Exam SnowPro Core topic 1 question 1186 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 1186
Topic #: 1
[All SnowPro Core Questions]

How does Snowflake optimize queries on tables by leveraging the sorting and storage of data within micro-partitions?

  • A. The data is pruned by column to eliminate unnecessary micro-partitions, then the rows within the remaining micro-partitions are filtered.
  • B. The data is pruned by micro-partitions based on column values, then rows within the remaining micro-partitions are filtered.
  • C. Any micro-partitions that are not needed for the query are pruned, then the data within the remaining micro-partitions is pruned by column.
  • D. The data within micro-partitions is sorted by rows, then the columns are filtered based on the query conditions.
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Suggested Answer: B 🗳️
by 37ceea2 at Jan. 31, 2025, 6:07 p.m.

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37ceea2
3 weeks, 1 day ago
Selected Answer: B
https://docs.snowflake.com/en/user-guide/tables-clustering-micropartitions The micro-partition metadata maintained by Snowflake enables precise pruning of columns in micro-partitions at query run-time, including columns containing semi-structured data. These being said, it seems that pruning is done by column in micro-partitions, which is against all the questions we solved in this examtopics. I shall say that B, but I am not convinced anymore.
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