Podcast
Questions and Answers
Check all the Snowflake Editions that have Search Optimization Service enabled. (Select all that apply)
Check all the Snowflake Editions that have Search Optimization Service enabled. (Select all that apply)
- Enterprise (correct)
- Business Critical (correct)
- Standard
- VPS (Virtual Private Snowflake) (correct)
Search Optimization Service is a ________ level property.
Search Optimization Service is a ________ level property.
- Schema
- Table (correct)
- Database
- Column
When a table is registered for search optimization service, it applies to all the columns.
When a table is registered for search optimization service, it applies to all the columns.
True (A)
Check all those options if they are valid for search optimization service. (Select all that apply)
Check all those options if they are valid for search optimization service. (Select all that apply)
The search optimization service speeds only range searches.
The search optimization service speeds only range searches.
To add or remove search optimization for a table, you must have the necessary privileges. Select all that apply.
To add or remove search optimization for a table, you must have the necessary privileges. Select all that apply.
The search optimization service does not support external tables.
The search optimization service does not support external tables.
The search optimization service currently supports equality predicate and IN list predicate searches.
The search optimization service currently supports equality predicate and IN list predicate searches.
Select applicable data types supported by search optimization service. (Select all that apply)
Select applicable data types supported by search optimization service. (Select all that apply)
The Snowflake optimizer automatically chooses when to use the search optimization service for a particular query. Users cannot control which queries search optimization is used for.
The Snowflake optimizer automatically chooses when to use the search optimization service for a particular query. Users cannot control which queries search optimization is used for.
The search optimization service relies on a maintenance service that runs in the background and is responsible for creating and maintaining the search access path.
The search optimization service relies on a maintenance service that runs in the background and is responsible for creating and maintaining the search access path.
If you clone a table, schema or a database, the search optimization property and search access paths of each table are also cloned.
If you clone a table, schema or a database, the search optimization property and search access paths of each table are also cloned.
The search optimization service creates a search access path data structure that requires space for each table on which search optimization is enabled.
The search optimization service creates a search access path data structure that requires space for each table on which search optimization is enabled.
All tables, be it small or large, benefit from search optimization service.
All tables, be it small or large, benefit from search optimization service.
Clustering a table benefits BI users who need fast response times for critical dashboards with highly selective filters.
Clustering a table benefits BI users who need fast response times for critical dashboards with highly selective filters.
Point lookup queries that benefit from the search optimization service. Select all that apply.
Point lookup queries that benefit from the search optimization service. Select all that apply.
The search optimization service does not directly improve the performance of joins.
The search optimization service does not directly improve the performance of joins.
The following predicate is not supported because it uses a cast on values in the table column: where to_date(varchar_column) = '2022-12-29';
The following predicate is not supported because it uses a cast on values in the table column: where to_date(varchar_column) = '2022-12-29';
Study Notes
Snowflake Query Optimization Service
- Search Optimization Service is available in Enterprise, Business Critical, and Virtual Private Snowflake (VPS) editions; Standard edition does not support it.
- It is a table-level property, meaning it can be applied to one or more complete tables rather than individual columns.
- When registered, search optimization applies to all columns of the table, provided the data types are supported.
- Implementing the search optimization service incurs compute and storage costs; it is not free, even in Business Critical editions.
- The service enhances performance for equality searches and IN predicate searches, not just range searches.
- Privileges required to modify search optimization status for a table include ownership on the table and specific schema privileges.
- External tables are not compatible with the search optimization service.
- Supported data types for search optimization include Integer, Variant, Date/Time/Timestamp, Varchar, Binary, Array, Object, and Geography Data.
- The Snowflake optimizer autonomously decides when to use the search optimization service for queries.
- A maintenance service operates in the background to manage the creation and upkeep of the search access path required for the service.
- Cloning a table, schema, or database also clones the search optimization properties and access paths associated with those tables.
- Enabling search optimization necessitates additional storage space for each table involved.
- Not all tables, regardless of size, benefit equally from the search optimization service.
- Queries with a high distinct value count and not clustered can gain from the search optimization service.
- The service does not enhance performance for join operations.
- Predicates that involve casts on table column values, such as using
to_datefunction, are unsupported.
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Description
This quiz focuses on the Snowflake Query Optimization Service, detailing its availability in different editions and the associated costs. It covers table-level properties, supported data types, performance enhancements, and necessary privileges for implementation. Test your knowledge on optimizing search capabilities in Snowflake.
