See Teradata Vantage™ - SQL Fundamentals, B035-1141 for a capsule overview of join indexes and Teradata Vantage™ - Database Design, B035-1094 for more examples, an extended discussion of the functions and features of join and partitioned primary indexes, and an overview of disk I/O integrity checking.
See Teradata Vantage™ - SQL Request and Transaction Processing, B035-1142 for descriptions of the various forms of partition elimination.
See Teradata Vantage™ - SQL Data Manipulation Language, B035-1146 for descriptions of the various functions and expressions that can be used to define a join index.
See Teradata Vantage™ - Database Design, B035-1094 for information about the various design issues for join indexes.
See CREATE JOIN INDEX in Teradata Vantage™ - SQL Data Definition Language Detailed Topics, B035-1184 for information about join indexes beyond syntax and examples.
Also see ALTER TABLE TO CURRENT.