What are the types of HASH functions used in teradata?

These are the types of HASH, HASHROW, HASHAMP and HASHBAKAMP. Their SQL functions are-

HASHROW (column(s))

HASHBUCKET (hashrow)

HASHAMP (hashbucket)

HASHBAKAMP (hashbucket)

To find the data distribution of a table based on PI, below query will be helpful. This query will give the number of records in each AMP for that particular table.

SELECT HASHAMP(HASHBUCKET(HASHROW(PI_COLUMN))),COUNT(*) FROM TABLENBAME GROUP BY 1.