Table of Contents

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  1. Preface
  2. Installing MDM Big Data Relationship Management
  3. Configuring MDM Big Data Relationship Management
  4. Configuring Security
  5. Setting Up the Environment to Process Streaming Data
  6. Configuring Distributed Search
  7. Packaging and Deploying the RESTful Web Services

Installation and Configuration Guide

Installation and Configuration Guide

MIN_COLUMN

MIN_COLUMN

The MIN_COLUMN rule selects the lowest column value. The MIN_COLUMN rule uses case-insensitive lexicographical ordering to find the lowest value.
The following table displays a sample cluster and indicates the row-level preferred record:
Cluster ID Employee Name City Age Department Comment
1 John Smith San Francisco 31 Sales
1 J Smith Redwood City 30 Human Resources
1 John Jr Smith Seattle 32 Support Row-level preferred record
The following table lists the preferred record with the preferred column value based on the MIN_COLUMN rule applied on the Age column:
Cluster ID Employee Name City Age Department Comment
1 John Jr Smith Seattle 30 Support Column-level preferred record
The MIN_COLUMN rule selects 30 as the preferred column value because it is the lowest age.
Use the following format to configure a MIN_COLUMN rule:
<ColumnRules>   
   <ColumnRule name="<Rule name>" rule="MIN_COLUMN" columnName="<Column name">
   </ColumnRule>   
</ColumnRules>
The format uses the following parameters:
Rule name
Unique name for the rule.
Column name
Name of the column based on which you want to configure the rule.
The following sample MIN_COLUMN rule is based on the Age column:
<ColumnRules>
   <Column name="NAME_RULE" rule="MIN_COLUMN" columnName="Age"></ColumnRule>
</ColumnRules>


Updated June 27, 2019