17.10 - Example: SHOW HASH INDEX in XML Format - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Data Definition Language Syntax and Examples

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1144-171K
Language
English (United States)

Assume you alter the hash index to use a sparse map:

     ALTER HASH INDEX ord_cust_hidx, MAP=SmallTableMap;

This example returns the create text for hash index ord_cust_hidx in XML format:

     SHOW IN XML HASH INDEX ord_cust_hidx;

The XML document generated reports all of the information required to recreate the hash index:

     <?xml version="1.0" encoding="UTF-8" standalone="no" ?><TeradataDBObjectSet version="1.0" xmlns="http://schemas.teradata.com/dbobject" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://schemas.teradata.com/dbobject http://schemas.teradata.com/dbobject/DBObject.xsd">
<HashIndex baseDBName="YourDB" baseTableName="orders" checkSumLevel="Default" colocateName="YourDB_ord_cust_hidx" dbName="YourDB" fallback="false" map="SmallTableMap" map_kind="sparse" name="ord_cust_hidx" objId="0:3655" objVer="2"><IndexColumnList><Column name="o_date" order="1"/></IndexColumnList><DistributeColumnList><Column name="o_date" order="1"/></DistributeColumnList><OrderBy mode="Value"/>
<SQLText><![CDATA[CREATE HASH INDEX YourDB.ord_cust_hidx ,NO FALLBACK 
,CHECKSUM = DEFAULT, 
MAP = SmallTableMap COLOCATE USING YourDB_ord_cust_hidx
(o_date )
 ON YourDB.orders 
 BY (o_date )
 ORDER BY VALUES
;]]></SQLText></HashIndex><Environment><Server dbRelease="16.10" dbVersion="16.10" hostName="localhost"/><User userId="00000704" userName="User"/><Session charset="UTF8" dateTime="2017-03-24T17:22:48"/></Environment></TeradataDBObjectSet>