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English
  • MDM Registry Edition 10.1
  • All Products

Table of Contents

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  1. Preface
  2. Introduction
  3. Defining a System
  4. Flattening IDTs
  5. Link Tables
  6. Loading a System
  7. Persistent-ID (Dynamic Clustering)
  8. Cluster Governance
  9. Static Clustering
  10. Simple Search
  11. Search Performance
  12. Miscellaneous Issues
  13. Limitations
  14. Error Messages

Design Guide

Design Guide

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Merge Master Definition

Merge Master Definition

The Merge Master Definition section begins with the
MERGE-MASTER-DEFINITION
 keyword. The fields are as follows:
Field
Description
NAME=
A character string that defines the name of the Merge Master Definition. It is a mandatory parameter. A Merge name is limited to a maximum of 32 bytes.
COMMENT=
This is an optional text field that is used to describe the Merge Master Definition’s purpose.
TYPE=
The type of Merge Master Rule. It is a mandatory parameter. Valid values are:
modal-exact
Selects the records with the greatest number of columns that contain the modal (most common) value. The modal value is determined by a strict comparison.
most-filled
Selects the records with the greatest number of columns filled.
column-max
Selects the records with the greatest value in a particular column. The
COLUMN
 field must be provided.
column-min
Selects the records with the lowest value in a particular column. The
COLUMN
 field must be provided.
column-equals
Selects the records where a particular column equals a given value. The
COLUMN
 and
VALUE
 fields must be provided.
most-data
Selects the records with the most data (longest sum of string lengths).
COLUMN=
For rules that refer to a column, this optional parameter specifies the name of the column in the IDT to use.
VALUE=
For rules that require a value, this optional parameter specifies the value.
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