When you enable caching, Data Integration queries the lookup source once and caches the values for use during the session. When you disable caching, each time a row passes into the transformation, a SELECT statement gets the lookup values.
Data Integration logs the uncached lookup queries for a connected and unconnected lookup in the session log. Enable the
Lookup Caching Enabled
property in the mapping, and then enable the verbose mode in the Snowflake Data Cloud mapping task.
The following image shows the selected verbose mode in the mapping task:
When you run the mapping, Data Integration logs the uncached lookup queries in the session logs.