Snowflake's search optimization service supports tables and views that are not protected by row access policies. It is designed to improve the performance of certain types of queries on tables, including selective point lookup queries and queries on fields in VARIANT, OBJECT, and ARRAY (semi-structured) columns1.

to Snowflake.

The Remote Disk I/O statistic in the Query Profile reflects time spent waiting on remote disk access, which can occur when data needs to be retrieved from external storage (remote). This metric is crucial for identifying bottlenecks related to I/O delays, often suggesting a need for performance optimization in data retrieval paths.
The other options relate to caching and network activity, but Remote Disk I/O specifically measures the wait time for data access from remote storage locations.

In Snowflake, the ownership privilege for a schema includes:
Automatic granting to the creator's role: The role that creates a database object within the schema automatically receives ownership of that object.
Ability to manage grants: Ownership enables the role to manage permissions and grants on the schema and its objects, allowing them to control access at the schema level.
Ownership does not directly confer query privileges or the ability to alter warehouse settings, nor is it transferable without specific privilege management actions.