What does the TableScan operator represent in the Query Profile?

The correct answer is A. The access to a single table. In Snowflake's Query Profile, the TableScan operator represents the access to a single table. It is the base operator that reads data from a table stored in Snowflake's micro-partitions. Other operators handle different data sources: ExternalScan accesses stage objects…

Performance Concepts

Question

Options

AThe access to a single table
BThe access to data stored in stage objects
CThe list of values provided with the VALUES clause
DThe records generated using the TABLE (GENERATOR (...)) construct

How the community answered

(41 responses)

A
90% (37)
B
2% (1)
C
5% (2)
D
2% (1)

Explanation

In Snowflake's Query Profile, the TableScan operator represents the access to a single table. It is the base operator that reads data from a table stored in Snowflake's micro-partitions. Other operators handle different data sources: ExternalScan accesses stage objects, ValuesClause handles VALUES clause lists, and Generator handles TABLE(GENERATOR()) constructs.

Topics

#Query Profile#Query Operators#TableScan#Performance Optimization

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