15.10 - Example: Creating a Hash Index on Orders by Order Date - Teradata Database

Teradata Database SQL Data Definition Language Syntax and Examples

prodname
Teradata Database
vrm_release
15.10
created_date
December 2015
category
Programming Reference
featnum
B035-1144-151K

The following hash index is distributed on o_orderkey (the primary index for the base table Orders) and stored in value order on o_orderdate:

     CREATE HASH INDEX ord_hidx_5 (o_orderdate) ON orders
      ORDER BY (o_orderdate);

Equivalently, you could specify ORDER BY VALUES instead of ORDER BY.

This creates an index that is equivalent in structure to the following join index:

     CREATE JOIN INDEX ord_jidx_5 AS
      SELECT (o_orderdate), (o_orderkey, orders.ROWID) 
      FROM orders
      ORDER BY o_orderdate
     PRIMARY INDEX (o_orderkey);