You can control how many rows are added to the match window. If there are more rows of one window key than the value specified, additional windows are created for the remaining rows.
If you know which window keys are particularly large, an external cross-reference file can be used to break up a large number of window keys of the same value. See Using a Cross-reference File for details.
Note: When the max window size setting results in a match window being split, a warning
message will be generated indicating the match results may not be complete.
To specify window sizing
-
From the Navigation or Project View, right-click the Relationship Linker or Reference Matcher process and select Edit Process. The editing window displays.
-
Select the Process tab.
-
Click Advanced and select the Window Sizing tab.
-
Select Split large windows into separate blocks.
-
In Max window size for transaction file, specify a numeric value. For example, if you have 1000 rows of one window key and set the value at 500, additional match windows are created for the remaining 500 rows.'
-
(Optional) The Lookup Key section is used for a cross-reference file. See Using a Cross-reference File for details.
-
Click Back and click Finish.