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  3. Introduction to Spark SQL in Python

Exercise

Caching and uncaching tables

In the lesson we learned that tables can be cached. Whereas a dataframe is cached using a cache or persist operation, a table is cached using a cacheTable operation.

A table called table1 is available.

Instructions

100 XP
  • List the tables with the listTables() method.
  • Cache table1 and confirm that it is cached.
  • Uncache table1 and confirm that it is uncached.