Example: Hash Index With Checksum - 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 created with disk I/O checksum ON:
     CREATE HASH INDEX line_hidx_6, CHECKSUM=ON 
       (l.shipdate) ON lineitem
     BY (l_shipdate)
     ORDER BY VALUES;
This creates an index that is equivalent in structure to the following join index:
     CREATE JOIN INDEX line_jidx_6, CHECKSUM=ON AS
      SELECT (l_orderkey), (l_shipdate, lineitem.ROWID) 
      FROM lineitem
      ORDER BY l_orderkey
     PRIMARY INDEX (l_shipdate);