Example: Creating a Hash Index According to Shipping Date - Analytics Database - Teradata Vantage

SQL Data Definition Language Syntax and Examples

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
VMware
Product
Analytics Database
Teradata Vantage
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2024-10-04
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lifecycle
latest
Product Category
Teradata Vantage™

The following hash index is distributed explicitly on l_shipdate and stored explicitly in value order on l_shipdate:

     CREATE HASH INDEX line_hidx_1 (l_shipdate) ON lineitem
     BY (l_shipdate) 
     ORDER BY (l_shipdate);

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 line_jidx_1 AS
      SELECT (l_shipdate), (l_orderkey, lineitem.ROWID) 
      FROM lineitem
      ORDER BY l_shipdate
     PRIMARY INDEX (l_shipdate);