17.00 - Example: Creating a Hash Index According to Customer ID - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.00
Release Date
September 2020
Content Type
Programming Reference
Publication ID
B035-1144-170K
Language
English (United States)

The following hash index is distributed on its primary index o_custkey and stored in row-hash order on o_custkey:

     CREATE HASH INDEX ord_hidx_2 (o_custkey) ON orders
     BY (o_custkey)
     ORDER BY HASH (o_custkey);

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

     CREATE JOIN INDEX ord_jidx_2 AS
      SELECT (o_custkey), (o_orderkey, orders.ROWID) 
      FROM orders
     PRIMARY INDEX (o_custkey);